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Youngia japonica

(L.) DC. (1838)

This name is accepted

Kingdom: Viridiplantae Phylum: Magnoliophyta Class/Clade: Eudicot-Asterids Order: Asterales Family: Asteraceae Genus: Youngia

oriental hawksbeard

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Description

Key Characters:

Growth Form:

Stems:

Roots: Roots a tap root.

Leaves: Leaves simple. Alternate, a rosette or spiralled. Blades lyrate or oblanceolate Margins pinnatifid.

Flowers:

Fruit:

Ploidy:

Habitat:

Elevation Range:

Historical Distribution

Images

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Uses and Culture

USES

Natural History

Statewide Status

Naturalized

Island Status

Kaua'i Naturalized
O'ahu Naturalized
Molokai Naturalized
Lana'i Naturalized
Maui Naturalized
Hawai'i Naturalized

Dispersal Agents

Water/Ocean
Wind

Pollinators

Bibliography

Name Published In: Prodr. 7(1):194 (1838)

Other References

Wagner et al. 1990:377 (K, O, Mo, L, M, H)

Occurrences

SNo. Scientific Name Locality Habitat Basis of Record Description Recorded By Record Number Island Source Date
1 Youngia japonica Honolulu; Lyon Arboretum, middle lawn makai Between Cottage H and nursery holding area In lawn and on edge of cleared border. Partly sunny. Common weed in areas where soil is disturbed. Preserved_Specimen Flowers yellow. Baker, R.F. 36 Oahu BISH 1974-12-30
2 Youngia japonica Olaa. Site 08 OS Olaa Forest Reserve Ohia-treefern dieback. Soils are deep and moderately well drained ash. Primary vegetation: Metrosideros polymorpha, Coprosma spp., Ilex anomala, Gouldia sp., Psychotria hawaiiensis. Preserved_Specimen Adee, K.T. Hawaii BISH
3 Youngia japonica Kilauea, Hawaii National Park Frequent in the gravelly soil in shade of Observatory and Naturalist Building. Preserved_Specimen Flowers yellow. Fagerlund, G.O. 871 Hawaii BISH 1944-01-29
4 Youngia japonica N Kona District, Keahou 2 Ahupuaa. Tr 56(63); Btwn Mauna Loa & Hualalai; N of Puu Keanui & Puu Pohakuloa. Exposed; terrestrial Dry ohia forest with mixed native trees and a native shrub and mixed grass understory. Preserved_Specimen Jacobi, J.D. 1208 Hawaii BISH 1978-08-11
5 Youngia japonica S. Kona, Honaunau Forest near Kealakekua ranch In closed Acacia koa- Metrosideros forest with mixed native understory. Substrate a`a. Preserved_Specimen Common herb. Ht. 2'. Flowers yellow. Clarke, G. 80.422 Hawaii BISH 1980-03-28
6 Youngia japonica Drive about 200 m. down Hilina Pali Rd. from intersection with Chain of Craters Road. Plant was about 20 m. W (right side) of road. (plot 1) Metrosideros - native shrub - Andropogon community. Preserved_Specimen Herb about 1 ft. tall, yellow flower with basal leaves. Newell, C.L. 403 Hawaii BISH 1966-08-15
7 Youngia japonica Honolulu; Lyon Arboretum, middle lawn makai Between Cottage H and nursery holding area In lawn and on edge of cleared border. Partly sunny. Common weed in areas where soil is disturbed. Preserved_Specimen Flowers yellow. Baker, R.F. 36 Oahu BISH 1974-12-30
8 Youngia japonica Kalihi Valley, Papali St On slope dominated by Casuarina & Passiflora. Preserved_Specimen Miller, S.E. 10 Oahu BISH 1994-02-02
9 Youngia japonica Honolii stream area, Hilo Forest Reserve Vegetation: Cibotium, Dicranopteris, Cyperus, Acacia koa, Metrosideros, Psidium and Tibouchina. Preserved_Specimen Higashino, P.K. 6984 Hawaii BISH 1978-03-02
10 Youngia japonica Mts. near Koele Preserved_Specimen Forbes, C.N. 203 Lanai BISH 1913-06-01
11 Youngia japonica Mahana Preserved_Specimen Munro, G.C. 331 Lanai BISH 1914-04-11
12 Youngia japonica Honolulu; Manoa Campus, Univ. Hawaii Preserved_Specimen Rosette herb, 10-20 cm. Flower yellow. Ruderal. Swarbrick, J.T. 72 Oahu BISH 1976-01-10
13 Youngia japonica Kalaupapa; Puu Alii 3, trail 5, station 32 Preserved_Specimen subcapose annual herb Wysong, M.L. 389 Molokai BISH 2004-10-27
14 Youngia japonica Honaunau Forest, South Kona, near Kealakekua Ranch OBSERVATION Curtis Daehler Hawaii HAPI 10/18/2007
15 Youngia japonica Waimea District, North below Kawaiiki Ridge in Asplenium dielmannii exclosure, NE facing slope above Twin Falls. OBSERVATION Curtis Daehler Kauai HAPI 3/25/2007
16 Youngia japonica W Waimea drainage basin Preserved_Specimen Forbes, C.N. 1066 Kauai BISH 1917-07-03
17 Youngia japonica Top of Poamoho Trail, Koolau Mts. Crest at head of Punaluu Valley Moist cut bank along trail. Preserved_Specimen Fosberg, F.R. 13328 Oahu BISH 1936-11-22
18 Youngia japonica Kaloko Reservoir, Kilauea Preserved_Specimen Forbes, C.N. 559 Kauai BISH 1916-10-10
19 Youngia japonica SW flank of Mauna Loa, Manuka Ahupuaa In a kipuka. Open Metrosideros forest and scattered Acacia with Cibotium, Coprosma, Myrsine on soil and aa. Preserved_Specimen Higashino, P.K. 6232 Hawaii BISH 1977-07-21
20 Youngia japonica Area just behind beach and Hwy. 83. Near road in Sacred Fall Park that leads up to Kaluinui Valley Preserved_Specimen Weed. Corn, C. Oahu BISH 1978-03-21
21 Youngia japonica Area just behind beach and Hwy. 83. Near road in Sacred Fall Park that leads up to Kaluinui Valley Preserved_Specimen Weed. Corn, C. Oahu BISH 1978-03-21
22 Youngia japonica East Maui, Hana District, Hana District, Waihoi Valley, Puu Hoolio In Paspalum conjugatum & Erechtites. Preserved_Specimen Harrison, B. 2545 Maui BISH 1972-07-20
23 Youngia japonica Wiliwilinui Ridge, Waialae Iki Preserved_Specimen Woolford, H.A. 384 Oahu BISH 1956-01-01
24 Youngia japonica East Maui, Hana District, Kipahulu Valley, E part of valley, near stream at base of central pali Preserved_Specimen Lamoureux, C.H. 3920 Maui BISH 1967-08-07
25 Youngia japonica Pauoa Preserved_Specimen Heller, A.A. 2074 Oahu BISH 1895-04-04
26 Youngia japonica Honokahau Drainage Basin Preserved_Specimen Forbes, C.N. 415 Maui BISH 1917-09-25
27 Youngia japonica Mahana Preserved_Specimen Munro, G.C. 331 Lanai BISH 1914-04-11
28 Youngia japonica Waialae Iki Preserved_Specimen Forbes, C.N. Oahu BISH 1908-10-10
29 Youngia japonica FR road above Wahiawa stream, foot of Mt. Kahili Preserved_Specimen Stone, B.C. 798 Kauai BISH 1955-06-15
30 Youngia japonica Haiku Preserved_Specimen Krauss, N.L.H. 1131 Maui BISH 1967-04-26
31 Youngia japonica Halepuaa Ahupuaa, Puna District. Near the Experimental Tree Planting Area Preserved_Specimen Kubo, R. 30 Hawaii BISH 1979-05-10
32 Youngia japonica Waianae Mts., E of Puu Kaua Preserved_Specimen Kerr, M. 233 Oahu BISH 1946-03-17
33 Youngia japonica Wauoa Valley ? [prob. Manoa Valley] Preserved_Specimen Lyon, H.L. 1227 Oahu BISH 1908-07-06
34 Youngia japonica Honolulu, Tantalus Preserved_Specimen Forbes, C.N. 1229 Oahu BISH 1909-03-31
35 Youngia japonica Honolulu; Vineyard St. Nursery Preserved_Specimen Duvel, A. 100 Oahu BISH 1925-04-10
36 Youngia japonica Hauola and Maunalei, between ? Preserved_Specimen Munro, G.C. 151 Lanai BISH 1913-10-11
37 Youngia japonica [Hawaiian Islands; U.S.A.; O`ahu; Hawai`i; Honolulu] Preserved_Specimen Mann, H. 244 Oahu BISH 1864-01-01
38 Youngia japonica Honolulu Preserved_Specimen Faurie, A. 945 Oahu BISH 1909-04-01
39 Youngia japonica Hawaii Preserved_Specimen Forbes, C.N. 221222 Hawaii BISH
40 Youngia japonica Waiakeakua Preserved_Specimen Munro, G.C. 290 Lanai BISH 1928-02-19
41 Youngia japonica Kawailoa Preserved_Specimen Forbes, C.N. 2095 Oahu BISH 1915-03-02
42 Youngia japonica Upper Waiakea Forest Reserve Along Disappointment Trail (Puu Makaala access rd.) off Kulani Rd. (Stainback Hwy.) Preserved_Specimen Wagner, W.L. 5247 Hawaii BISH 1984-02-28
43 Youngia japonica Olaa. Site 08 OS Olaa Forest Reserve Ohia-treefern dieback. Soils are deep and moderately well drained ash. Primary vegetation: Metrosideros polymorpha, Coprosma spp., Ilex anomala, Gouldia sp., Psychotria hawaiiensis. Preserved_Specimen Adee, K.T. Hawaii BISH
44 Youngia japonica ahupuaa of Halepuaa Forest Reserve in the Puna District Preserved_Specimen ESP Field Crew Hawaii BISH 1979-10-05
45 Youngia japonica Waianae Mountains: Kaluaa Preserved_Specimen Cantori, M. Oahu BISH 1958-10-04
46 Youngia japonica Kalalau Trail Preserved_Specimen Corn, C. Kauai BISH 1984-07-20
47 Youngia japonica S ridge of Kipapa Gulch, Waipio, Koolau Mts Preserved_Specimen Bryan Jr., E.H. Oahu BISH 1932-05-15
48 Youngia japonica Waianae Mts. W of Kunia, along the Contour Trail, SW of Maunauna Preserved_Specimen Bryan Jr., E.H. Oahu BISH 1967-07-04
49 Youngia japonica Honolulu, Tantalus Preserved_Specimen Forbes, C.N. Oahu BISH 1909-03-31
50 Youngia japonica [Hawaiian Islands; U.S.A.; Molokai; Hawaii; Maui Preserved_Specimen Stokes, J.F.G. Molokai BISH 1909-01-01
51 Youngia japonica Kalulu Preserved_Specimen Munro, G.C. Lanai BISH 1916-03-24
52 Youngia japonica Kalalau Trail Preserved_Specimen Corn, C. Kauai BISH 1984-07-20
53 Youngia japonica Laie; BYU-H Campus Slope flat, soil loam. Preserved_Specimen An erect, slender annual, 0.5-2.0 ft. Smooth hollow stems containing a milky sap. Leaf-stalks vary from 1-4 in.; composite flower abt. 0.625 in. across, 10-20 small yellow florets. Commonly distributed. Tiu, C. 6 Oahu BISH 1975-03-29
54 Youngia japonica Hauola Preserved_Specimen Munro, G.C. 121 Lanai BISH 1913-10-11
55 Youngia japonica Waianae Mts., Pahole Natural Area Reserve, Kapuna Trail, just inside fence gate. Associated with canopy plants Schinus terebinthifolius, Metrosideros polymorpha, Pipturus albidus, Psidium cattleianum; understory Schinus, Pipturus, Commelina diffusa, Andropogon virginicus, various Asteraceae. Preserved_Specimen Herb 82 cm tall, unusually taller than other individuals found in Kapuna. Leaves cauline with rosette at bottom. Flowers small, yellow. Small achenes. Ca. 20 plants. Naturalized. Russell, T. 492 Oahu BISH 2018-03-15
56 Youngia japonica Located down Chain of Craters Road about 9 mi toward Kalapana from intersection with Crater Rim Road; or 6.4 mi from intersection with Hilina Pali Rd. Walk up Old Kalapana Trail about 0.3 mi (plot 8) Metrosideros - Dicranopteris transition community. Preserved_Specimen Herb about 1 ft. tall, yellow flower. Newell, C.L. 552 Hawaii BISH 1966-08-23
57 Youngia japonica Kaala Trail, Haleauau Valley, Waianae Mts Moist forest along trail. Preserved_Specimen Flowers yellow. Fosberg, F.R. 12978 Oahu BISH 1936-03-08
58 Youngia japonica Sloping plateau E of Mapulehu Valley Along trail in wet forest. Preserved_Specimen Erect herb, 1 m. tall; fls. yellow. Fosberg, F.R. 13356 Molokai BISH 1936-12-23
59 Youngia japonica Waimea District. North below Kawaiiki Ridge in Asplenium dielmannii exclosure. N-East facing slope above Twin Falls. Diverse Mesic A.koa and Metrosideros forest. Psychotria, Bobea, Coprosma, Dodonea, Perrottetia, Claoxylon, Alyxia, Kadua affinis, Carex, Cheirodendron trigynum, Myrsine, Rubus hawaiiensis, Scavola, Ilex, Sysygium, Diplazium sandwhichanum, Dubaut Preserved_Specimen 1.2 ft tall herb w/ lobed thin leaves. Stem dark maroon-purple toward base and green higher up. Flowers white. Stem and lower leaf surface w/ hairs. Lvs w/ fine purple teeth on margin Tangalin, N. 2846 Kauai BISH 2012-02-09
60 Youngia japonica SW flank of Mauna Loa, Puu Ohohia Ahupuaa Semi closed Metrosideros and Acacia forest, understory Dodonaea, Styphelia, Vaccinium on cinder. Preserved_Specimen Higashino, P.K. 6340 Hawaii BISH 1977-08-05
61 Youngia japonica Kawaiiki Valley, next to Kawaiiki Stream, directly below the Labordia lorencia subgulch,. Forest with Perrottetia sandwicensis, Syzygium sandwicensis, Acacia koa, Psidium cattleianum, Blechnum occidentale Preserved_Specimen Herb about 2 ft tall. Pedicels w/red. Paint brush red-orange. Tangalin, N. 2338 Kauai BISH 2010-06-02
62 Youngia japonica Keauhou Ranch, Kau District, beside Puu oo road Beside road, on edge of Acacia koa - Metrosideros forest with open understory in `a`a substrat. Preserved_Specimen Heigth 2.5'. Flowers yellow, pappus white. Cuddihy, L.W. 116 Hawaii BISH 1980-01-08
63 Youngia japonica Cane fields behind Akaka Falls State Park Roadside weed. Preserved_Specimen Yellow flowers; common. Herbst, D.R. 5156 Hawaii BISH 1975-01-15
64 Youngia japonica Kaala Trail, Haleauau Valley, Waianae Mts Moist forest along trail. Preserved_Specimen Fosberg, F.R. 12981 Oahu BISH 1936-03-08
65 Youngia japonica Honolulu Kewalo St. and Wilder Ave weed in flower bed, partly sunny area, moist Preserved_Specimen Faccenda, K. 1674 Oahu BISH 2020-08-22
66 Youngia japonica East Maui, Hana District, Kalahu Point, PTBG Kahanu Garden, Cultivated area running N from garden entrance along edge of forest On overgrown archaeological site. Preserved_Specimen Herb. Leaves basal. Florets yellow. Flynn, T.W. 2587 Maui BISH 1987-10-30
67 Youngia japonica Honolulu; Foster Botanic Garden Weeds growing in a frequently mowed lawn in dappled shade. Preserved_Specimen Rays lemon yellow. Flowers odorless (morning). Lau, J. 2195 Oahu BISH 1986-03-27
68 Youngia japonica Kipapa-Waiawa Ridge, Waipio Metrosideros forest. Preserved_Specimen Grant, M.L. 7201 Oahu BISH 1934-08-07
69 Youngia japonica SW flank of Mauna Loa, Manuka Ahupuaa Closed Metrosideros forest on unweathered aa, with Nephrolepis, Eupatorium, Canthium, Myrsine, Psychotria, and Rubus. Preserved_Specimen Higashino, P.K. 5899 Hawaii BISH 1977-06-27
70 Youngia japonica Sloping plateau E of Mapulehu Valley Wet forest, along trail. Preserved_Specimen Erect herb; fls. yellow. Fosberg, F.R. 13359 Molokai BISH 1936-12-23
71 Youngia japonica Kipapa-Waiawa Ridge, Waipio Metrosideros forest. Preserved_Specimen Grant, M.L. 7201 Oahu BISH 1934-08-07
72 Youngia japonica Honaunau Forest, South Kona, near Kealakekua Ranch Common component of ground cover in closed to open Metrosideros- Acacia koa forest with understory of mixed native trees. Preserved_Specimen Flowers yellow, pappus white. Plant has milky juice. Cuddihy, L.W. 299 Hawaii BISH 1980-04-01
73 Youngia japonica Honolulu; Carter Ranch, upper Manoa Valley Wet canyon bottom. Preserved_Specimen Fls. yellow. Fosberg, F.R. 8865 Oahu BISH 1932-09-26
74 Youngia japonica East Maui, along Waikamoi Flume Wet ohia rain forest. Preserved_Specimen Wagner, W.L. 4794 Maui BISH 1983-01-15
75 Youngia japonica S ridge Kipapa Gulch, Waipio, Koolau Mts Wet wood. Preserved_Specimen Weed. St.John, H. 10025 Oahu BISH 1929-11-10
76 Youngia japonica Kaala, Waianaeuka Woods, side hill. Slope more or less wet. Preserved_Specimen Herb. Flower yellow, small. Hume, E.P. 43 Oahu BISH 1930-11-30
77 Youngia japonica Kaumalumalu Transect at 3450' (first transect above upper gate), parallel to and +/- 100' S of jeep road Open Metrosideros stand (trees ca. 75' tall, average); fern, bryophyte, shrub (Cassia laevigata, Pipturus, Rubus hawaiensis, Ilex, Myrsine); was recently grazed. Preserved_Specimen Herbst, D.R. 1734 Hawaii BISH 1970-07-09
78 Youngia japonica Kapuna Gulch - releve 9 Under windswept canopy of Metrosideros; Syzygium; Pittosporum; Xylosma; Psychotria. Preserved_Specimen Welton, P. 539 Oahu BISH 1990-06-16
79 Youngia japonica Honolulu; Makiki In garden. Preserved_Specimen Rays yellow. Fosberg, F.R. 29668 Oahu BISH 1948-03-14
80 Youngia japonica N Kona Dist., Keauhou 2 Ahu., NW slope Mauna Loa Tr 58(38), S of Puu Lehua Dry mamane-mixed native trees community with an exotic grass-native shrub understory. Growing on pahoehoe. Preserved_Specimen Warshauer, F.R. 2034 Hawaii BISH 1978-08-01
81 Youngia japonica Puu Kaala, Mokuleia, Waianae Mts. 2nd gulch E of Puu Kaupakuhale Wet bottom of gulch. Preserved_Specimen Fls. yellow. Fosberg, F.R. 8896 Oahu BISH 1932-10-23
82 Youngia japonica Keauhou Ranch, Kau District, near Kilauwa Forest boundary. (TK-BB) Growing with Pennisetum clandestinum (kikuyu) on edge of log jam with Metrosideros and Cibotium glaucum. Preserved_Specimen Small herb about 1 1/2' tall. Flowers yellow, pappus white. Cuddihy, L.W. 548 Hawaii BISH 1980-08-19
83 Youngia japonica Honolulu; 42 Coelho Way In shaded garden bed by house. Preserved_Specimen Neal, M.C. Oahu BISH
84 Youngia japonica Honolulu, Lyon Arboretum, Section 34 In sunny, cultivated areas. Preserved_Specimen A common annual. Nagata, K.M. 1251 Oahu BISH 1975-03-06
85 Youngia japonica Drive about 200 m. down Hilina Pali Rd. from intersection with Chain of Craters Road. Plant was about 20 m. W (right side) of road. (plot 1) Metrosideros - native shrub - Andropogon community. Preserved_Specimen Herb about 1 ft. tall. Newell, C.L. 405 Hawaii BISH 1966-08-15
86 Youngia japonica Drive about 200 m. down Hilina Pali Rd. from intersection with Chain of Craters Road. Plant was about 20 m. W (right side) of road. (plot 1) Metrosideros - native shrub - Andropogon community. Preserved_Specimen Herb about 1.5 ft. tall, yellow flower. Newell, C.L. 406 Hawaii BISH 1966-08-15
87 Youngia japonica East Maui, Hana District, Kalahu Point, PTBG Kahanu Garden, Cultivated area running N from garden entrance along edge of forest On overgrown archaeological site. Preserved_Specimen Herb. Leaves basal. Florets yellow. Flynn, T.W. 2587 Maui BISH 1987-10-30
88 Youngia japonica Manoa Cliff Trail, Koolau Mts., above Pauoa Valley Moist forest. Preserved_Specimen Fls. yellow. Fosberg, F.R. 12220 Oahu BISH 1935-07-13
89 Youngia japonica Honolulu; 42 Coelho Way In shaded garden bed by house. Preserved_Specimen Neal, M.C. Oahu BISH
90 Youngia japonica Sloping plateau E of Mapulehu Valley Wet forest, along trail. Preserved_Specimen Erect herb; fls. yellow. Fosberg, F.R. 13359 Molokai BISH 1936-12-23
91 Youngia japonica Honolulu; Lyon Arboretum, middle lawn makai Between Cottage H and nursery holding area In lawn and on edge of cleared border. Partly sunny. Common weed in areas where soil is disturbed. Preserved_Specimen Flowers yellow. Baker, R.F. 36 Oahu BISH 1974-12-30
92 Youngia japonica Olaa. Site 08 OS Olaa Forest Reserve Ohia-treefern dieback. Soils are deep and moderately well drained ash. Primary vegetation: Metrosideros polymorpha, Coprosma spp., Ilex anomala, Gouldia sp., Psychotria hawaiiensis. Preserved_Specimen Adee, K.T. Hawaii BISH
93 Youngia japonica Kilauea, Hawaii National Park Frequent in the gravelly soil in shade of Observatory and Naturalist Building. Preserved_Specimen Flowers yellow. Fagerlund, G.O. 871 Hawaii BISH 1944-01-29
94 Youngia japonica N Kona District, Keahou 2 Ahupuaa. Tr 56(63); Btwn Mauna Loa & Hualalai; N of Puu Keanui & Puu Pohakuloa. Exposed; terrestrial Dry ohia forest with mixed native trees and a native shrub and mixed grass understory. Preserved_Specimen Jacobi, J.D. 1208 Hawaii BISH 1978-08-11
95 Youngia japonica S. Kona, Honaunau Forest near Kealakekua ranch In closed Acacia koa- Metrosideros forest with mixed native understory. Substrate a`a. Preserved_Specimen Common herb. Ht. 2'. Flowers yellow. Clarke, G. 80.422 Hawaii BISH 1980-03-28
96 Youngia japonica Drive about 200 m. down Hilina Pali Rd. from intersection with Chain of Craters Road. Plant was about 20 m. W (right side) of road. (plot 1) Metrosideros - native shrub - Andropogon community. Preserved_Specimen Herb about 1 ft. tall, yellow flower with basal leaves. Newell, C.L. 403 Hawaii BISH 1966-08-15
97 Youngia japonica Honolulu; Lyon Arboretum, middle lawn makai Between Cottage H and nursery holding area In lawn and on edge of cleared border. Partly sunny. Common weed in areas where soil is disturbed. Preserved_Specimen Flowers yellow. Baker, R.F. 36 Oahu BISH 1974-12-30
98 Youngia japonica Kalihi Valley, Papali St On slope dominated by Casuarina & Passiflora. Preserved_Specimen Miller, S.E. 10 Oahu BISH 1994-02-02
99 Youngia japonica Honolii stream area, Hilo Forest Reserve Vegetation: Cibotium, Dicranopteris, Cyperus, Acacia koa, Metrosideros, Psidium and Tibouchina. Preserved_Specimen Higashino, P.K. 6984 Hawaii BISH 1978-03-02
100 Youngia japonica Mts. near Koele Preserved_Specimen Forbes, C.N. 203 Lanai BISH 1913-06-01
101 Youngia japonica Mahana Preserved_Specimen Munro, G.C. 331 Lanai BISH 1914-04-11
102 Youngia japonica Honolulu; Manoa Campus, Univ. Hawaii Preserved_Specimen Rosette herb, 10-20 cm. Flower yellow. Ruderal. Swarbrick, J.T. 72 Oahu BISH 1976-01-10
103 Youngia japonica Kalaupapa; Puu Alii 3, trail 5, station 32 Preserved_Specimen subcapose annual herb Wysong, M.L. 389 Molokai BISH 2004-10-27
104 Youngia japonica Honaunau Forest, South Kona, near Kealakekua Ranch OBSERVATION Curtis Daehler Hawaii HAPI 10/18/2007
105 Youngia japonica Waimea District, North below Kawaiiki Ridge in Asplenium dielmannii exclosure, NE facing slope above Twin Falls. OBSERVATION Curtis Daehler Kauai HAPI 3/25/2007
106 Youngia japonica W Waimea drainage basin Preserved_Specimen Forbes, C.N. 1066 Kauai BISH 1917-07-03
107 Youngia japonica Top of Poamoho Trail, Koolau Mts. Crest at head of Punaluu Valley Moist cut bank along trail. Preserved_Specimen Fosberg, F.R. 13328 Oahu BISH 1936-11-22
108 Youngia japonica Kaloko Reservoir, Kilauea Preserved_Specimen Forbes, C.N. 559 Kauai BISH 1916-10-10
109 Youngia japonica SW flank of Mauna Loa, Manuka Ahupuaa In a kipuka. Open Metrosideros forest and scattered Acacia with Cibotium, Coprosma, Myrsine on soil and aa. Preserved_Specimen Higashino, P.K. 6232 Hawaii BISH 1977-07-21
110 Youngia japonica Area just behind beach and Hwy. 83. Near road in Sacred Fall Park that leads up to Kaluinui Valley Preserved_Specimen Weed. Corn, C. Oahu BISH 1978-03-21
111 Youngia japonica Area just behind beach and Hwy. 83. Near road in Sacred Fall Park that leads up to Kaluinui Valley Preserved_Specimen Weed. Corn, C. Oahu BISH 1978-03-21
112 Youngia japonica East Maui, Hana District, Hana District, Waihoi Valley, Puu Hoolio In Paspalum conjugatum & Erechtites. Preserved_Specimen Harrison, B. 2545 Maui BISH 1972-07-20
113 Youngia japonica Wiliwilinui Ridge, Waialae Iki Preserved_Specimen Woolford, H.A. 384 Oahu BISH 1956-01-01
114 Youngia japonica East Maui, Hana District, Kipahulu Valley, E part of valley, near stream at base of central pali Preserved_Specimen Lamoureux, C.H. 3920 Maui BISH 1967-08-07
115 Youngia japonica Pauoa Preserved_Specimen Heller, A.A. 2074 Oahu BISH 1895-04-04
116 Youngia japonica Honokahau Drainage Basin Preserved_Specimen Forbes, C.N. 415 Maui BISH 1917-09-25
117 Youngia japonica Mahana Preserved_Specimen Munro, G.C. 331 Lanai BISH 1914-04-11
118 Youngia japonica Waialae Iki Preserved_Specimen Forbes, C.N. Oahu BISH 1908-10-10
119 Youngia japonica FR road above Wahiawa stream, foot of Mt. Kahili Preserved_Specimen Stone, B.C. 798 Kauai BISH 1955-06-15
120 Youngia japonica Haiku Preserved_Specimen Krauss, N.L.H. 1131 Maui BISH 1967-04-26
121 Youngia japonica Halepuaa Ahupuaa, Puna District. Near the Experimental Tree Planting Area Preserved_Specimen Kubo, R. 30 Hawaii BISH 1979-05-10
122 Youngia japonica Waianae Mts., E of Puu Kaua Preserved_Specimen Kerr, M. 233 Oahu BISH 1946-03-17
123 Youngia japonica Wauoa Valley ? [prob. Manoa Valley] Preserved_Specimen Lyon, H.L. 1227 Oahu BISH 1908-07-06
124 Youngia japonica Honolulu, Tantalus Preserved_Specimen Forbes, C.N. 1229 Oahu BISH 1909-03-31
125 Youngia japonica Honolulu; Vineyard St. Nursery Preserved_Specimen Duvel, A. 100 Oahu BISH 1925-04-10
126 Youngia japonica Hauola and Maunalei, between ? Preserved_Specimen Munro, G.C. 151 Lanai BISH 1913-10-11
127 Youngia japonica [Hawaiian Islands; U.S.A.; O`ahu; Hawai`i; Honolulu] Preserved_Specimen Mann, H. 244 Oahu BISH 1864-01-01
128 Youngia japonica Honolulu Preserved_Specimen Faurie, A. 945 Oahu BISH 1909-04-01
129 Youngia japonica Hawaii Preserved_Specimen Forbes, C.N. 221222 Hawaii BISH
130 Youngia japonica Waiakeakua Preserved_Specimen Munro, G.C. 290 Lanai BISH 1928-02-19
131 Youngia japonica Kawailoa Preserved_Specimen Forbes, C.N. 2095 Oahu BISH 1915-03-02
132 Youngia japonica Upper Waiakea Forest Reserve Along Disappointment Trail (Puu Makaala access rd.) off Kulani Rd. (Stainback Hwy.) Preserved_Specimen Wagner, W.L. 5247 Hawaii BISH 1984-02-28
133 Youngia japonica Olaa. Site 08 OS Olaa Forest Reserve Ohia-treefern dieback. Soils are deep and moderately well drained ash. Primary vegetation: Metrosideros polymorpha, Coprosma spp., Ilex anomala, Gouldia sp., Psychotria hawaiiensis. Preserved_Specimen Adee, K.T. Hawaii BISH
134 Youngia japonica ahupuaa of Halepuaa Forest Reserve in the Puna District Preserved_Specimen ESP Field Crew Hawaii BISH 1979-10-05
135 Youngia japonica Waianae Mountains: Kaluaa Preserved_Specimen Cantori, M. Oahu BISH 1958-10-04
136 Youngia japonica Kalalau Trail Preserved_Specimen Corn, C. Kauai BISH 1984-07-20
137 Youngia japonica S ridge of Kipapa Gulch, Waipio, Koolau Mts Preserved_Specimen Bryan Jr., E.H. Oahu BISH 1932-05-15
138 Youngia japonica Waianae Mts. W of Kunia, along the Contour Trail, SW of Maunauna Preserved_Specimen Bryan Jr., E.H. Oahu BISH 1967-07-04
139 Youngia japonica Honolulu, Tantalus Preserved_Specimen Forbes, C.N. Oahu BISH 1909-03-31
140 Youngia japonica [Hawaiian Islands; U.S.A.; Molokai; Hawaii; Maui Preserved_Specimen Stokes, J.F.G. Molokai BISH 1909-01-01
141 Youngia japonica Kalulu Preserved_Specimen Munro, G.C. Lanai BISH 1916-03-24
142 Youngia japonica Kalalau Trail Preserved_Specimen Corn, C. Kauai BISH 1984-07-20
143 Youngia japonica Laie; BYU-H Campus Slope flat, soil loam. Preserved_Specimen An erect, slender annual, 0.5-2.0 ft. Smooth hollow stems containing a milky sap. Leaf-stalks vary from 1-4 in.; composite flower abt. 0.625 in. across, 10-20 small yellow florets. Commonly distributed. Tiu, C. 6 Oahu BISH 1975-03-29
144 Youngia japonica Hauola Preserved_Specimen Munro, G.C. 121 Lanai BISH 1913-10-11
145 Youngia japonica Waianae Mts., Pahole Natural Area Reserve, Kapuna Trail, just inside fence gate. Associated with canopy plants Schinus terebinthifolius, Metrosideros polymorpha, Pipturus albidus, Psidium cattleianum; understory Schinus, Pipturus, Commelina diffusa, Andropogon virginicus, various Asteraceae. Preserved_Specimen Herb 82 cm tall, unusually taller than other individuals found in Kapuna. Leaves cauline with rosette at bottom. Flowers small, yellow. Small achenes. Ca. 20 plants. Naturalized. Russell, T. 492 Oahu BISH 2018-03-15
146 Youngia japonica Located down Chain of Craters Road about 9 mi toward Kalapana from intersection with Crater Rim Road; or 6.4 mi from intersection with Hilina Pali Rd. Walk up Old Kalapana Trail about 0.3 mi (plot 8) Metrosideros - Dicranopteris transition community. Preserved_Specimen Herb about 1 ft. tall, yellow flower. Newell, C.L. 552 Hawaii BISH 1966-08-23
147 Youngia japonica Kaala Trail, Haleauau Valley, Waianae Mts Moist forest along trail. Preserved_Specimen Flowers yellow. Fosberg, F.R. 12978 Oahu BISH 1936-03-08
148 Youngia japonica Sloping plateau E of Mapulehu Valley Along trail in wet forest. Preserved_Specimen Erect herb, 1 m. tall; fls. yellow. Fosberg, F.R. 13356 Molokai BISH 1936-12-23
149 Youngia japonica Waimea District. North below Kawaiiki Ridge in Asplenium dielmannii exclosure. N-East facing slope above Twin Falls. Diverse Mesic A.koa and Metrosideros forest. Psychotria, Bobea, Coprosma, Dodonea, Perrottetia, Claoxylon, Alyxia, Kadua affinis, Carex, Cheirodendron trigynum, Myrsine, Rubus hawaiiensis, Scavola, Ilex, Sysygium, Diplazium sandwhichanum, Dubaut Preserved_Specimen 1.2 ft tall herb w/ lobed thin leaves. Stem dark maroon-purple toward base and green higher up. Flowers white. Stem and lower leaf surface w/ hairs. Lvs w/ fine purple teeth on margin Tangalin, N. 2846 Kauai BISH 2012-02-09
150 Youngia japonica SW flank of Mauna Loa, Puu Ohohia Ahupuaa Semi closed Metrosideros and Acacia forest, understory Dodonaea, Styphelia, Vaccinium on cinder. Preserved_Specimen Higashino, P.K. 6340 Hawaii BISH 1977-08-05
151 Youngia japonica Kawaiiki Valley, next to Kawaiiki Stream, directly below the Labordia lorencia subgulch,. Forest with Perrottetia sandwicensis, Syzygium sandwicensis, Acacia koa, Psidium cattleianum, Blechnum occidentale Preserved_Specimen Herb about 2 ft tall. Pedicels w/red. Paint brush red-orange. Tangalin, N. 2338 Kauai BISH 2010-06-02
152 Youngia japonica Keauhou Ranch, Kau District, beside Puu oo road Beside road, on edge of Acacia koa - Metrosideros forest with open understory in `a`a substrat. Preserved_Specimen Heigth 2.5'. Flowers yellow, pappus white. Cuddihy, L.W. 116 Hawaii BISH 1980-01-08
153 Youngia japonica Cane fields behind Akaka Falls State Park Roadside weed. Preserved_Specimen Yellow flowers; common. Herbst, D.R. 5156 Hawaii BISH 1975-01-15
154 Youngia japonica Kaala Trail, Haleauau Valley, Waianae Mts Moist forest along trail. Preserved_Specimen Fosberg, F.R. 12981 Oahu BISH 1936-03-08
155 Youngia japonica Honolulu Kewalo St. and Wilder Ave weed in flower bed, partly sunny area, moist Preserved_Specimen Faccenda, K. 1674 Oahu BISH 2020-08-22
156 Youngia japonica East Maui, Hana District, Kalahu Point, PTBG Kahanu Garden, Cultivated area running N from garden entrance along edge of forest On overgrown archaeological site. Preserved_Specimen Herb. Leaves basal. Florets yellow. Flynn, T.W. 2587 Maui BISH 1987-10-30
157 Youngia japonica Honolulu; Foster Botanic Garden Weeds growing in a frequently mowed lawn in dappled shade. Preserved_Specimen Rays lemon yellow. Flowers odorless (morning). Lau, J. 2195 Oahu BISH 1986-03-27
158 Youngia japonica Kipapa-Waiawa Ridge, Waipio Metrosideros forest. Preserved_Specimen Grant, M.L. 7201 Oahu BISH 1934-08-07
159 Youngia japonica SW flank of Mauna Loa, Manuka Ahupuaa Closed Metrosideros forest on unweathered aa, with Nephrolepis, Eupatorium, Canthium, Myrsine, Psychotria, and Rubus. Preserved_Specimen Higashino, P.K. 5899 Hawaii BISH 1977-06-27
160 Youngia japonica Sloping plateau E of Mapulehu Valley Wet forest, along trail. Preserved_Specimen Erect herb; fls. yellow. Fosberg, F.R. 13359 Molokai BISH 1936-12-23
161 Youngia japonica Kipapa-Waiawa Ridge, Waipio Metrosideros forest. Preserved_Specimen Grant, M.L. 7201 Oahu BISH 1934-08-07
162 Youngia japonica Honaunau Forest, South Kona, near Kealakekua Ranch Common component of ground cover in closed to open Metrosideros- Acacia koa forest with understory of mixed native trees. Preserved_Specimen Flowers yellow, pappus white. Plant has milky juice. Cuddihy, L.W. 299 Hawaii BISH 1980-04-01
163 Youngia japonica Honolulu; Carter Ranch, upper Manoa Valley Wet canyon bottom. Preserved_Specimen Fls. yellow. Fosberg, F.R. 8865 Oahu BISH 1932-09-26
164 Youngia japonica East Maui, along Waikamoi Flume Wet ohia rain forest. Preserved_Specimen Wagner, W.L. 4794 Maui BISH 1983-01-15
165 Youngia japonica S ridge Kipapa Gulch, Waipio, Koolau Mts Wet wood. Preserved_Specimen Weed. St.John, H. 10025 Oahu BISH 1929-11-10
166 Youngia japonica Kaala, Waianaeuka Woods, side hill. Slope more or less wet. Preserved_Specimen Herb. Flower yellow, small. Hume, E.P. 43 Oahu BISH 1930-11-30
167 Youngia japonica Kaumalumalu Transect at 3450' (first transect above upper gate), parallel to and +/- 100' S of jeep road Open Metrosideros stand (trees ca. 75' tall, average); fern, bryophyte, shrub (Cassia laevigata, Pipturus, Rubus hawaiensis, Ilex, Myrsine); was recently grazed. Preserved_Specimen Herbst, D.R. 1734 Hawaii BISH 1970-07-09
168 Youngia japonica Kapuna Gulch - releve 9 Under windswept canopy of Metrosideros; Syzygium; Pittosporum; Xylosma; Psychotria. Preserved_Specimen Welton, P. 539 Oahu BISH 1990-06-16
169 Youngia japonica Honolulu; Makiki In garden. Preserved_Specimen Rays yellow. Fosberg, F.R. 29668 Oahu BISH 1948-03-14
170 Youngia japonica N Kona Dist., Keauhou 2 Ahu., NW slope Mauna Loa Tr 58(38), S of Puu Lehua Dry mamane-mixed native trees community with an exotic grass-native shrub understory. Growing on pahoehoe. Preserved_Specimen Warshauer, F.R. 2034 Hawaii BISH 1978-08-01
171 Youngia japonica Puu Kaala, Mokuleia, Waianae Mts. 2nd gulch E of Puu Kaupakuhale Wet bottom of gulch. Preserved_Specimen Fls. yellow. Fosberg, F.R. 8896 Oahu BISH 1932-10-23
172 Youngia japonica Keauhou Ranch, Kau District, near Kilauwa Forest boundary. (TK-BB) Growing with Pennisetum clandestinum (kikuyu) on edge of log jam with Metrosideros and Cibotium glaucum. Preserved_Specimen Small herb about 1 1/2' tall. Flowers yellow, pappus white. Cuddihy, L.W. 548 Hawaii BISH 1980-08-19
173 Youngia japonica Honolulu; 42 Coelho Way In shaded garden bed by house. Preserved_Specimen Neal, M.C. Oahu BISH
174 Youngia japonica Honolulu, Lyon Arboretum, Section 34 In sunny, cultivated areas. Preserved_Specimen A common annual. Nagata, K.M. 1251 Oahu BISH 1975-03-06
175 Youngia japonica Drive about 200 m. down Hilina Pali Rd. from intersection with Chain of Craters Road. Plant was about 20 m. W (right side) of road. (plot 1) Metrosideros - native shrub - Andropogon community. Preserved_Specimen Herb about 1 ft. tall. Newell, C.L. 405 Hawaii BISH 1966-08-15
176 Youngia japonica Drive about 200 m. down Hilina Pali Rd. from intersection with Chain of Craters Road. Plant was about 20 m. W (right side) of road. (plot 1) Metrosideros - native shrub - Andropogon community. Preserved_Specimen Herb about 1.5 ft. tall, yellow flower. Newell, C.L. 406 Hawaii BISH 1966-08-15
177 Youngia japonica East Maui, Hana District, Kalahu Point, PTBG Kahanu Garden, Cultivated area running N from garden entrance along edge of forest On overgrown archaeological site. Preserved_Specimen Herb. Leaves basal. Florets yellow. Flynn, T.W. 2587 Maui BISH 1987-10-30
178 Youngia japonica Manoa Cliff Trail, Koolau Mts., above Pauoa Valley Moist forest. Preserved_Specimen Fls. yellow. Fosberg, F.R. 12220 Oahu BISH 1935-07-13
179 Youngia japonica Honolulu; 42 Coelho Way In shaded garden bed by house. Preserved_Specimen Neal, M.C. Oahu BISH
180 Youngia japonica Sloping plateau E of Mapulehu Valley Wet forest, along trail. Preserved_Specimen Erect herb; fls. yellow. Fosberg, F.R. 13359 Molokai BISH 1936-12-23
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