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Adiantum raddianum

C.Presl (1836)

This name is accepted

Kingdom: Viridiplantae Phylum: Pteridophyta Class/Clade: Polypodiopsida Order: Polypodiales Family: Pteridaceae Genus: Adiantum

delta maidenhair, maidenhair fern

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Bibliography

Name Published In: Tent. Pterid.: 158 (1836)

Other References

Palmer 2003:45 (K, O, Mo, L, M, H); Staples & Herbst 2005:47 (KEY), 50 (DESCR); Paul Higashino pers. comm. 2025 (Ka? [plants observed no spm. from under rain catchment])

Occurrences

SNo. Scientific Name Locality Habitat Basis of Record Description Recorded By Record Number Island Source Date
1 Adiantum raddianum Hanalei Dist Base of cliff in shade. Preserved_Specimen St.John, H. 13522 Kauai BISH 1933-12-23
2 Adiantum raddianum East Maui, Haiku Uka, along the Waikamoi Flume Road within Koolau Forest Reserve On cliff face. Assoc veg.: Metrosideros polymorpha, Cheirodendron trigynum, Clermontia arborescens, Cyrtandra platyphylla, Sadleria pallida, Dryopteris wallichiana, Carex alligata, Thelypteris parasitica, Rubus argutus, R. rosifolius. Preserved_Specimen Oppenheimer, H.L. 290 Maui BISH 1998-02-16
3 Adiantum raddianum W. side of Nonou, Wailua On moist, rocky cliff. Preserved_Specimen St.John, H. 24933 Kauai BISH 1953-12-31
4 Adiantum raddianum Koolau Mts., Mt. Tantalus, Manoa cliff Trail Forest with Metrosideros, Psidium, Acacia koa, Coffea--mixed native and introduced trees. Abundant, covering moist, shaded vertical bank. Preserved_Specimen Wilson, K.A. 1719 Oahu BISH 1989-07-18
5 Adiantum raddianum East Maui, Keanae wet cliff in shady forest Preserved_Specimen Hobdy, R.W. 3455 Maui BISH 1992-09-01
6 Adiantum raddianum East Maui, Hana District, Waihoi Valley under wet ledge along stream bank Preserved_Specimen Harrison, B. 5 Maui BISH 1972-09-21
7 Adiantum raddianum Waiawa Ditch Trail wet rock Preserved_Specimen Topping, D.L. 3761 Oahu BISH 1934-07-01
8 Adiantum raddianum East Maui, Hana District, Kipahulu Valley, W part, N base of Puu Palikea rocks overhanging stream Preserved_Specimen Lamoureux, C.H. 4055 Maui BISH 1967-08-10
9 Adiantum raddianum NW facing slope, ridge 3/4 mile N. of Laaukahi, Koloa Shaded moist cliff face. Preserved_Specimen St.John, H. 23000 Kauai BISH 1947-12-24
10 Adiantum raddianum Kawaiiki Ditch Trail, Kawailoa, Koolau Range Wet bank of ditch Preserved_Specimen Ozaki, E.T. 169 Oahu BISH 1953-01-18
11 Adiantum raddianum East Maui, below Puu Alii cliff face Preserved_Specimen Hobdy, R.W. 3482 Maui BISH 1992-10-05
12 Adiantum raddianum Wet caves at Haena dripping rock grottos, in dense shade. Preserved_Specimen Stone, B.C. 822 Kauai BISH 1955-06-18
13 Adiantum raddianum East Maui, Hana District, upper E section of Kaupo Gap, 1 mi S of Paliku Cabins small recess in rocks along trail Preserved_Specimen Henrickson, J.S. Maui BISH 1969-07-16
14 Adiantum raddianum Maunalei Gulch, Kaaealii Moist cliff by stream. Preserved_Specimen St.John, H. 22641 Lanai BISH 1947-04-05
15 Adiantum raddianum Kawaiiki Ditch Trail, Koolau Range Growing on bank excavated in making the trail. In lower Metrosideros forest. Preserved_Specimen Terrestrial fern. Urata, U. Oahu BISH 1953-01-18
16 Adiantum raddianum Hapapa, Kunia, Schofield, Waianae Range Preserved_Specimen Filicales Nitta, K. 98 Oahu BISH 1930-03-16
17 Adiantum raddianum Oopuola Stream A.moluccana trees covered with epiphytes, Ceodes umbellifera, with Cyrtandra; wet cliff at edge of gulch Preserved_Specimen fern Woolford, H.A. 102 Maui BISH 1955-12-23
18 Adiantum raddianum NE slopes of Mt. Tantalus trailside banks Preserved_Specimen Crosby, M.R. 1366 Oahu BISH 1964-06-13
19 Adiantum raddianum Maunalei Gulch, Kaaealii, Bottom of gulch. Bottom of gulch. Preserved_Specimen Fosberg, F.R. 12557 Lanai BISH 1935-12-02
20 Adiantum raddianum Sacred Falls, Koolau Mts mist-wet vertical rocky bank beside the waterfall Preserved_Specimen Stone, B.C. 2651 Oahu BISH 1958-04-04
21 Adiantum raddianum Aiea Trail wet rocks Preserved_Specimen Topping, D.L. 3417 Oahu BISH 1931-03-01
22 Adiantum raddianum West Maui, Wailuku, Iao Valley dripping stream gorge Preserved_Specimen St.John, H. Maui BISH 1930-02-09
23 Adiantum raddianum 2nd gulch E of Puu Kaupakuhale, Mokuleia, Kamananui, Puu Kaala, Waianae Mts moist ledges of waterfall Preserved_Specimen St.John, H. 13182 Oahu BISH 1933-05-14
24 Adiantum raddianum Kalaupapa; Puu Alii Preserved_Specimen delicate; terrestrial or epipetric Hughes, G.D. 1081 Molokai BISH 2004-10-26
25 Adiantum raddianum Oahu Preserved_Specimen Kerr, M. 6311 Oahu BISH 1946-08-01
26 Adiantum raddianum Koolau Range, Mt. Tantalus trail Preserved_Specimen Cowan, R.S. 230 Oahu BISH 1944-05-27
27 Adiantum raddianum Honolulu: Manoa Valley; Lyon Arboretum, Marantaceae Section Preserved_Specimen fern to 0.25 m. Stems brown. Pinnules lobed. Sori lima bean to semi-circular shaped, light yellow-green, turning brown at maturity Teraoka, W. 300 Oahu BISH 1980-06-12
28 Adiantum raddianum Haiku damp bank of gulch Preserved_Specimen Krauss, N.L.H. 1099 Maui BISH 1967-04-06
29 Adiantum raddianum Niu Valley, right fork Preserved_Specimen Garber, D.W. 461 Oahu BISH 1920-06-29
30 Adiantum raddianum On Hauula mountain range off the jeep trail at the second gulch growing on very wet rock surface in shady places. Preserved_Specimen Herat, T. 200 Oahu BISH 1972-08-19
31 Adiantum raddianum Western slope of Manuahi Ridge, SE of Keawanui (N. Molokai) Secondary forest of Psidium guajava and Schinus, with scattered Pandanus tectorius, Metrosideros and Aleurites, ground cover of Kalanchoe pinnata and Zingiber zerumbet. Preserved_Specimen Lorence, D.H. 5443 Molokai BISH 1987-08-01
32 Adiantum raddianum Hoalulu Valley, Hanakapiai Moist, shaded, rocky, by waterfall. Preserved_Specimen St.John, H. 23176 Kauai BISH 1948-01-01
33 Adiantum raddianum Kalalau trail to Hanakapiai Waterfall, Na Pali-Kona Forest Reserve Preserved_Specimen Kato, M. 101 Kauai BISH 1997-10-25
34 Adiantum raddianum Haukulu Preserved_Specimen Russell, P. 9 Oahu BISH 1937-07-05
35 Adiantum raddianum Honolulu, 3726 Pukalani St Preserved_Specimen Fronds 6-8+ in.long. Suehiro, A. Oahu BISH 1945-12-05
36 Adiantum raddianum Honolulu, 3726 Pukalani St Preserved_Specimen Fasciation at rachis tips causes tufted pinnules. Suehiro, A. Oahu BISH 1947-04-25
37 Adiantum raddianum Koolau Mts.; Mt. Tantalus; Manoa Cliffs 21.3N 157.8W Preserved_Specimen Krajina, V.J. 611028209 Oahu BISH 1961-10-28
38 Adiantum raddianum Honolulu, 3746 Pukalani St Preserved_Specimen largest fronds have smallest segments Suehiro, A. Oahu BISH 1945-12-26
39 Adiantum raddianum Nuanualua Preserved_Specimen Forbes, C.N. 1760 Maui BISH 1919-12-06
40 Adiantum raddianum Kawaiiki Ditch Trail, Kawailoa, Koolau Range Preserved_Specimen Wilbur, R.L. 275 Oahu BISH 1947-11-02
41 Adiantum raddianum Lyon Arboretum; upper slopes Preserved_Specimen Long, C.R. 3648 Oahu BISH 1965-11-20
42 Adiantum raddianum unknown Preserved_Specimen BISH
43 Adiantum raddianum Honolulu, Duker garden Preserved_Specimen Fosberg, F.R. 9380 Oahu BISH 1933-04-01
44 Adiantum raddianum On Koolau Range. On Kawaiiki Dithc trail. In third gulch Preserved_Specimen Herat, T. 391 Oahu BISH 1973-07-02
45 Adiantum raddianum East Maui, Oopuola Gulch near Kailua at Hwy. to Hana 20.9N 156.2W Preserved_Specimen Krajina, V.J. 620420033 Maui BISH 1962-04-20
46 Adiantum raddianum Niu Valley, left side Preserved_Specimen Forbes, C.N. 1721 Oahu BISH 1911-05-02
47 Adiantum raddianum Niu Valley, left side Preserved_Specimen Forbes, C.N. 1721 Oahu BISH 1911-05-02
48 Adiantum raddianum Swimming pool, Aihualama. Preserved_Specimen Russel, P. 45 Oahu BISH 1932-07-08
49 Adiantum raddianum East Maui, Hana District, Waihoi Valley, S fork of Waiohonu Stream Preserved_Specimen Harrison, B. 118 Maui BISH 1972-08-28
50 Adiantum raddianum Upper Kalihi Valley Preserved_Specimen Topping, D.L. 2713 Oahu BISH 1923-09-12
51 Adiantum raddianum Waianae Mts., Peacock Flat Preserved_Specimen Herbst, D.R. 3076 Oahu BISH 1973-08-11
52 Adiantum raddianum Maui Preserved_Specimen Merrill, J.W. Maui BISH
53 Adiantum raddianum Manoa Valley Preserved_Specimen Smith, F.G. 37 Oahu BISH 1929-02-17
54 Adiantum raddianum Milolii Valley Preserved_Specimen Corn, C. Kauai BISH 1984-07-16
55 Adiantum raddianum Waianae Mountains: Kaluaa Preserved_Specimen Cantori, M. Oahu BISH 1958-10-04
56 Adiantum raddianum Lanai Preserved_Specimen Munro, G.C. Lanai BISH 1915-01-01
57 Adiantum raddianum Hanalei Dist. Growing on rock face near cave mouth, drier site than A. capillus-veneris Preserved_Specimen Wagner, W.L. 6339 Kauai BISH 1990-06-11
58 Adiantum raddianum Kalia, Honolulu Preserved_Specimen Octavio, A.M. Oahu BISH 1929-11-24
59 Adiantum raddianum Pali along Alakahi Trail, Kohala Mountains Preserved_Specimen Corn, C. Hawaii BISH 1984-03-29
60 Adiantum raddianum Waiahole Ditch Trail Preserved_Specimen Meebold, A. Oahu BISH 1932-06-01
61 Adiantum raddianum Kohla Mts., head of Waipio on road bank along upper Hamakua ditch below Koiawe and Alakahi Valley Preserved_Specimen Cranwell, L.M. 3119 Hawaii BISH 1938-09-07
62 Adiantum raddianum Niu Valley, left side Preserved_Specimen Forbes, C.N. 1721 Oahu BISH 1911-05-02
63 Adiantum raddianum On Waianae range in Pahole gulch. Along the right hand branch of the gulch, growing close to Asplenium Preserved_Specimen Herat, T. 473 Oahu BISH 1973-07-23
64 Adiantum raddianum near Waiahole Tunnel Preserved_Specimen Topping, D.L. 2683 Oahu BISH 1923-07-04
65 Adiantum raddianum N Halawa Stream, Koolau Range wet rocks by stream Preserved_Specimen St.John, H. 20407 Oahu BISH 1943-12-12
66 Adiantum raddianum Right fork Niu Valley near head of valley Growing in damp soil at side of stream bed. Preserved_Specimen About 10 inches high. Garber, D.W. 458 Oahu BISH 1920-06-29
67 Adiantum raddianum Kawaiiki Ditch trail, Kawailoa, Koolau Range rain forest, side gulch on steep slope between 2 tunnels Preserved_Specimen Wilson, K.A. 2 Oahu BISH 1951-10-14
68 Adiantum raddianum Koolau Mt. Range; Tantalus above Honolulu Wet forest. Preserved_Specimen Stemmermann, R.L. 422 Oahu BISH 1973-08-09
69 Adiantum raddianum West Honolulu: Manoa Valley Along a stream to a waterfall. Preserved_Specimen Kato, M. 8 Oahu BISH 1997-10-16
70 Adiantum raddianum Manoa, Luaalaea stream, Koolau Range moist rocks Preserved_Specimen Nishida, T. Oahu BISH 1943-10-07
71 Adiantum raddianum Waipao Valley, north of Kokee road Along stream bed in valley bottom. Shaded overhang. Preserved_Specimen Flynn, T.W. 951 Kauai BISH 1984-11-21
72 Adiantum raddianum Pahole Gulch, Waialua, Waianae Mts. On gulch walls and rocks in deep shade. Aleurites canopy. Preserved_Specimen Nagata, K.M. 1272 Oahu BISH 1975-07-15
73 Adiantum raddianum Waianae Mts., Mokuleia, fire break trail extention below Puu Ihi gulch shaded by kukui trees Preserved_Specimen Wilbur, R.L. 388 Oahu BISH 1947-12-07
74 Adiantum raddianum Hills above Akaka Falls, Honomu Overhanging bank. Preserved_Specimen Fosberg, F.R. 10470 Hawaii BISH 1933-12-08
75 Adiantum raddianum On Waianae range. In Kaluaa gulch By rocky bank, in moist shady place. Preserved_Specimen Herat, T. 444 Oahu BISH 1973-07-15
76 Adiantum raddianum W Maui, Kauaula Canyon Growing on a wet mossy cliff face. Preserved_Specimen Rootstock short-creeping, densely rooted, many fronds, marcescent stipes. Hobdy, R.W. 1214 Maui BISH 1982-02-05
77 Adiantum raddianum W Waihuaiki On wet cliff just below the falls. Preserved_Specimen Hobdy, R.W. 2921 Maui BISH 1987-09-13
78 Adiantum raddianum Kaluanui Stream valley below Sacred Falls damp vertical cliff face Preserved_Specimen Iltis, H.H. 360 Oahu BISH 1967-07-27
79 Adiantum raddianum East Maui, S slope of Haleakala, Manawainui Gulch shady cliff Preserved_Specimen differ from typical. They grow at higher elevations; the stipes are more robust and scaly, the fronds are narrow ovate in shape, the pinnules are smaller and narrowly cuneate, and the indusia are a striking brown. When living the fronds are a paler green. Hobdy, R.W. 3484 Maui BISH 1992-10-05
80 Adiantum raddianum South Hilo District; Kaumana Cave Park, ca. 4.2 miles outside Hilo on the Saddle Road (Route 200). Growing in the collapsed portion of a lava tube that forms the entrance to Kaumana Cave Park. Maidenhair fern growing on the rock wall of the cave mouth in very wet, shady conditions. Abundant; possibly planted and now thriving there. Preserved_Specimen Staples, G.W. 540 Hawaii BISH 1990-01-10
81 Adiantum raddianum Kalaupapa, Waikolu, W wall, Puu Kaeo mixed mesic, native forest Preserved_Specimen lacy delicate fern Hughes, G.D. 1138 Molokai BISH 2004-02-03
82 Adiantum raddianum East Maui, Waikamoi, by Hana Highway wet cliff Preserved_Specimen Hobdy, R.W. 3458 Maui BISH 1992-09-01
83 Adiantum raddianum Trail on ridge west of Puu Iki, Mokuleia On shaded rocky bank. Preserved_Specimen Webster, G.L. 1158 Oahu BISH 1947-12-07
84 Adiantum raddianum Kaluahui, Koolau Mts On bank of stream, upstream of Castle Trail crossing. Preserved_Specimen Newhouse, W.J. 53148 Oahu BISH 1953-10-18
85 Adiantum raddianum Ulupalakua, adjacent to Tedeschi Winery, NW of Puu Mahoe Shaded 10 ft. deep depression of lava tube opening, growing with Pipturus albidus, Peperomia cookiana, Physalis peruviana, Bryophyllum pinnatum, the ferns Nephrolepis multiflora and Christella parasitica. Preserved_Specimen Healthy population growing on cave walls. Imada, C. 200216 Maui BISH 2002-07-16
86 Adiantum raddianum Makua Valley dry stream bed Preserved_Specimen Topping, D.L. 3560 Oahu BISH 1932-06-06
87 Adiantum raddianum Kilauea area, Thurston Lava Tube Cliff face in moist, shdy place; in gully. Preserved_Specimen Rhizomatous fern w. black stipes. Sykes, W.R. 33591 Hawaii BISH 1991-06-02
88 Adiantum raddianum Pauoa Valley on rocks Preserved_Specimen Topping, D.L. 2636 Oahu BISH 1923-04-21
89 Adiantum raddianum Kipapa Gulch, Waipio, Koolau Mts In moist place. Preserved_Specimen Hosaka, E.Y. 1044 Oahu BISH 1933-05-28
90 Adiantum raddianum Tantalus Drive, Hon Common moist forest floor. Preserved_Specimen Swarbrick, J.T. 73 Oahu BISH 1976-01-10
91 Adiantum raddianum Waianae Valley, Palolo lower wetlands Preserved_Specimen small fern Uehara, S. 35 Oahu BISH 1942-11-29
92 Adiantum raddianum S slpe of Haleakala upper drainage, rocky stream bed Preserved_Specimen Medeiros, A.C. 232 Maui BISH 1982-07-22
93 Adiantum raddianum Waihiha Valley Precipitous, rocky cliff; moist lower forest. Preserved_Specimen St.John, H. 13912 Kauai BISH 1934-01-01
94 Adiantum raddianum Right fork of Niu Valley Growing in damp undergrowth at base of cliff at head of valley. Preserved_Specimen About 20 inches high. Garber, D.W. 461 Oahu BISH 1920-06-29
95 Adiantum raddianum Kamokunui shady gulch Preserved_Specimen Topping, D.L. 3733 Oahu BISH 1934-03-25
96 Adiantum raddianum East Maui, Nuanualoa Gulch crevices of steep, moist rock ledge Preserved_Specimen Wilson, K.A. 100 Maui BISH 1951-12-27
97 Adiantum raddianum W Maui, Lahaina District, Honokohau Valley, Kava Kamp riparian zone in low land mesic forest; with Pipturus and Metrosideros Preserved_Specimen fern to 30 cm Annable, C.R. 3828 Maui BISH 1998-03-03
98 Adiantum raddianum Hanakapiai Base of moist ahded cliff. Preserved_Specimen St.John, H. 13859 Kauai BISH 1933-12-30
99 Adiantum raddianum Makawao Stream, E fork, below Puu Lanipo, Kailua, Koolau Range shaded rocks Preserved_Specimen St.John, H. 21549 Oahu BISH 1946-03-20
100 Adiantum raddianum Manoa Falls Trail near the entrance Growing with Angiopteris evecta in shade on stream on bank. Preserved_Specimen Yee, R.S.N. 12 Oahu BISH 1971-08-15
101 Adiantum raddianum Kawaiiki Ditch Trail, Kawailoa, Koolau Mts Moist bank in open forest. Preserved_Specimen Higgins, N.H. 10 Oahu BISH 1955-10-09
102 Adiantum raddianum Wai`anae Mts., first gully below Peacock Flats, ca. 1 mi from beginning of trail . On moist, shaded bank. Preserved_Specimen Herbst, D.R. 335 Oahu BISH 1967-02-25
103 Adiantum raddianum West Maui, 3 miles N of Mt. Eke in Honokohau Valley damp embankment Preserved_Specimen Degener, O. 3993 Maui BISH 1927-08-28
104 Adiantum raddianum East Maui, Kahikinui, Manawainui Gulch. Growing on a shady cliff face. Preserved_Specimen These small pinnae variants seem to be established on the south slope of Haleakala, similar to Hobdy 3482 & 3484. Hobdy, R.W. 4173 Maui BISH 2003-07-25
105 Adiantum raddianum Makiki Valley, Honolulu base of ledge Preserved_Specimen Degener, O. 12023 Oahu BISH 1922-10-28
106 Adiantum raddianum Honokahau Drainage Basin On cliffs along trail and tunnel holes Preserved_Specimen Forbes, C.N. 356 Maui BISH 1917-09-25
107 Adiantum raddianum Carter Ranch, Upper Manoa Valley Wet bank, over stream. Preserved_Specimen Fosberg, F.R. 8861 Oahu BISH 1932-09-26
108 Adiantum raddianum Kamakou Preserve, trail along Kawela Gulch near intake and gauging station, East Moloka`i. Montane wet Metrosideros/Cheirodendron forest with native shrubs, ferns and few alien grasses. Preserved_Specimen Delicate fern on mossy bank. Pratt, L.W. 1142 Molokai BISH 1982-05-22
109 Adiantum raddianum Waipio Valley, gulch at top Shaded gulch slope Preserved_Specimen Russ, G.W. 69 Hawaii BISH 1927-07-31
110 Adiantum raddianum Niu Valley wet rocks Preserved_Specimen Topping, D.L. 3532 Oahu BISH 1932-06-04
111 Adiantum raddianum East Maui, Hana, Haleakala National Park, Oheo Gulch and stream, W fork, Waimoku Falls secondary forest dominated by Aleurites with Psidium and Pisonia. Wet, shaded, decaying rock face above stream. With Selaginella arbuscula Preserved_Specimen Flynn, T.W. 2428 Maui BISH 1987-10-13
112 Adiantum raddianum East arm of Kaluaaha Valley Wet, dark ravene. Preserved_Specimen Degener, O. 3206 Molokai BISH 1928-07-12
113 Adiantum raddianum S. Kohala district; Kohla Mts.; Kohakohou Stream; Below diversion dam; deeply carved drainage On wet basalt walls near waterfall Preserved_Specimen rhizome creeping, brown w/ brown scales; stipe brown or red-brown Wood, K.R. 4693 Hawaii BISH 1995-10-26
114 Adiantum raddianum East Maui, S slope of Haleakala, Manawainui Gulch shady cliff Preserved_Specimen differ from typical. They grow at higher elevations; the stipes are more robust and scaly, the fronds are narrow ovate in shape, the pinnules are smaller and narrowly cuneate, and the indusia are a striking brown. When living the fronds are a paler green. Hobdy, R.W. 3484 Maui BISH 1992-10-05
115 Adiantum raddianum East Maui, Hana District, Seven Pools, Kipahulu shaded ledge Preserved_Specimen St.John, H. 24769 Maui BISH 1954-12-27
116 Adiantum raddianum Oopuola Stream A.moluccana trees covered with epiphytes, Ceodes umbellifera, with Cyrtandra; wet cliff at edge of gulch Preserved_Specimen fern Woolford, H.A. 102 Maui BISH 1955-12-23
117 Adiantum raddianum South Hilo District. Along saddle road, about 20 km fro Hilo In forest reserve, growing in shady conditions. Preserved_Specimen Herat, T. 722 Hawaii BISH 1974-06-22
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