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Rhynchospora sclerioides

Hook. & Arn. (1832)

This name is accepted

Kingdom: Viridiplantae Phylum: Magnoliophyta Class/Clade: Monocots Order: Poales Family: Cyperaceae Genus: Rhynchospora

kuolohia

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Description

Key Characters:

Growth Form: Perennials with short rhizomes covered with brown fibers.

Stems: Culms stout, (20–)40–90 cm tall, trigonous, smooth or scabrous, especially on angles, 1–3–nodose.

Roots:

Leaves: Leaves simple. Leaves numerous, primarily basal, crowded, 1–3 cauline in lower ½ of culm. Blades linear, flat, as long as or longer than the culm, (5–)7–18 mm wide. Apex long-acuminate. Lower surfaces strongly scabrous on margins and midnerve. Margins entire. Sheathing; sheaths brown. Stipules absent.

Flowers: Flowers in inflorescence an elongated, narrow, interrupted, decompound panicle 15–60 cm long, bearing 5–9 partial panicles, these solitary, pyramidal–ovoid, 3–7 cm long, 2–4 cm wide, many-branched, dense to lax, peduncles 3–7 cm long, scarcely exserted, bracts longer than the subtending partial panicle, the sheath up to 5 cm long, slightly dilated in upper part, green, tinged brown toward base; spikelets brown to reddish brown, solitary or in groups of 2–3, sessile or short–pedicellate, lanceolate, acute, 7–8 mm long, 1.5–2 mm wide; glumes 6–8,2-ranked, the middle 34 flower–bearing, 2 of them perfect, iower empty ones ovate, the flower–bearing ones chartaceous, oblong-lanceolate to lanceolate– ovate, 5–6 mm long, the slender midnerve prolonged into a short awn; perianth bristles 5–6, 5–7 mm long, much longer than the achene and surpassing the style base, antrorsely scabrous. Flowers all bisexual (perfect) or sometimes distalmost staminate. Corolla (petals) absent. Ovary superior; styles base pale brown, subulate-conical, ca. 1.5 mm long, the base nearly as wide as the achene, gradually tapering to a long, filiform, 2– cleft style.

Fruit: Achenes yellowish brown; obovate to obovate–oblong; dorsiventrally lenticular; 1.2–1.5 mm long including a short stipe; 1–1.3 mm wide; minutely reticulate–cancellate. Seeds 1; seed coat thin; free from pericarp; embryo basal; endosperm abundant.

Ploidy:

Habitat: Occurring in mesic forest; grasslands; and on ridges.

Elevation Range: 90–1220 m.

Historical Distribution

Images

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Uses and Culture

USES

Natural History

Statewide Status

Indigenous

Island Status

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

Dispersal Agents


Pollinators

Bibliography

Name Published In: Bot. Beechey Voy.: 99 (1832)

Other References

Wagner et al. 1990:1430 (K, O, Mo, L, M, H)

Occurrences

SNo. Scientific Name Locality Habitat Basis of Record Description Recorded By Record Number Island Source Date
1 Rhynchospora sclerioides Koolau Mts., Kaluanui Stream valley below Sacred Falls damp vertical volcanic cliff face Preserved_Specimen Iltis, H.H. 357 Oahu BISH 1967-06-27
2 Rhynchospora sclerioides Mapulehu Valley rocky gorge Preserved_Specimen St.John, H. 12762 Molokai BISH 1932-12-28
3 Rhynchospora sclerioides Pupukea Acacia, Pleomele Preserved_Specimen Takeuchi, W.N. 2146 Oahu BISH 1985-04-21
4 Rhynchospora sclerioides East Maui, Hana District, Waihoi Valley, S fork of Waiohonu Stream wet Preserved_Specimen Harrison, B. 117 Maui BISH
5 Rhynchospora sclerioides Waahila Ridge Acacia, Metrosideros Preserved_Specimen tufted; inflorescence gray van Balgooy, M.M.J. 4145 Oahu BISH 1982-05-23
6 Rhynchospora sclerioides Waimano Trail, 4.5-5 mi rainforest, on banks, under trees Preserved_Specimen up to 1 m erect sedge; flower dark purple Bryan Jr., E.H. 1533 Oahu BISH 1941-03-23
7 Rhynchospora sclerioides West Maui, Pohakea gulch scrub Preserved_Specimen Hobdy, R.W. 730 Maui BISH 1979-11-19
8 Rhynchospora sclerioides N fork of Wailua River, just E of Mts. Waialeale and Kawaikini clearings; with Gunnera; deep valley Preserved_Specimen terrestrial, small clumps; inflorescence dark brown Lorence, D.H. 5356 Kauai BISH 1987-07-23
9 Rhynchospora sclerioides Waahila Ridge, above Woodlawn and N windy Preserved_Specimen Crosby, M.R. 1733 Oahu BISH 1964-07-11
10 Rhynchospora sclerioides Ewa, Halawa trail rocky bank, with Diospyros Preserved_Specimen Herbst, D.R. 1172 Oahu BISH 1968-06-22
11 Rhynchospora sclerioides Kipapa Gulch, Waipio, Koolau Mts wooded slope Preserved_Specimen Hosaka, E.Y. 1208 Oahu BISH 1933-08-08
12 Rhynchospora sclerioides Kukuinui Ridge, Wailau Valley moist woods Preserved_Specimen tufts St.John, H. 13268 Molokai BISH 1933-07-04
13 Rhynchospora sclerioides West Maui, Pohakea gulch scrub Preserved_Specimen Hobdy, R.W. 731 Maui BISH 1979-11-19
14 Rhynchospora sclerioides Kalaupapa; Puu Alii, Ohialele, Manuahi ridge wet; Metrosideros, Psychotria; deep shade Preserved_Specimen terrestrial sedge Wood, K.R. 11360 Molokai BISH 2005-05-23
15 Rhynchospora sclerioides Kalihi Valley Preserved_Specimen Forbes, C.N. 1258 Oahu BISH 1909-04-02
16 Rhynchospora sclerioides Manoa Cliff trail rocky soil Preserved_Specimen 12-15 grass like; fruiting Garber, D.W. 421 Oahu BISH 1920-06-13
17 Rhynchospora sclerioides Mokuleia, Kaaawa-Kamokunui Ridge Metrosideros forest Preserved_Specimen Grant, M.L. 7041 Oahu BISH 1934-07-11
18 Rhynchospora sclerioides Tantalus grassy windswept hillside; under Pittosporum glabrum and Metrosideros tremuloides Preserved_Specimen Takeuchi, W.N. 2481 Oahu BISH 1985-09-28
19 Rhynchospora sclerioides W Maui, Lahaina District, Lihau, on a small ridge below summit Under a coanopy of Metrosideros polymorpha, 6 m ht. w. Ilex anomala, Coprosma foliosa, Broussaisia arguta, Hedyotis terminalis, Scaevola chamissoniana, Clermontia arborescens, Styphelia tameiameiae, Cyrtandra spp, Myrsine spp, Cheirodendron trigynum. Preserved_Specimen Welton, P. 1296 Maui BISH 1991-08-27
20 Rhynchospora sclerioides Paumalu mauka ridge slopes, under dense Planchonella canopy Preserved_Specimen Takeuchi, W.N. 2168 Oahu BISH 1985-04-29
21 Rhynchospora sclerioides East Maui, Waihoi valley wet stream bank Preserved_Specimen Harrison, B. 17 Maui BISH 1972-09-28
22 Rhynchospora sclerioides Koolau Range, Waimea, Pupukea-Kahuku Rd Preserved_Specimen 1 m; in fruit Chock, A.K. 867 Oahu BISH 1953-03-18
23 Rhynchospora sclerioides Kaukonahua gulch, Wahiawa Preserved_Specimen Rock, J.F.C. 3023 Oahu BISH 1909-05-15
24 Rhynchospora sclerioides Koolau Mts., Kipapa-Waiahole Crest Metrosideros, Cheirodendron forest Preserved_Specimen Grant, M.L. 7220 Oahu BISH 1934-07-07
25 Rhynchospora sclerioides Puu Alii, ridge to Preserved_Specimen Hobdy, R.W. 142 Lanai BISH 1969-07-15
26 Rhynchospora sclerioides Kalihi and Shafter trail moist Preserved_Specimen Kerr, M. 460 Oahu BISH 1945-08-13
27 Rhynchospora sclerioides Nuuanu Valley Preserved_Specimen Rock, J.F.C. 12757 Oahu BISH 1912-01-01
28 Rhynchospora sclerioides Koolauloa, Castle Trail wet; with Cyrtandra, Touchardia, Metrosideros, Pipturus, Clermontia, Scaevola Preserved_Specimen Herbst, D.R. 1154 Oahu BISH 1968-06-20
29 Rhynchospora sclerioides Aiea Trail Preserved_Specimen Woolford, H.A. 237 Oahu BISH 1955-01-08
30 Rhynchospora sclerioides Kahana, back of valley, Waiahole ditch trail guava forest Preserved_Specimen Herat, T. 264 Oahu BISH 1972-08-26
31 Rhynchospora sclerioides Ridge between Niu and Wailupe Preserved_Specimen Forbes, C.N. 2470 Oahu BISH 1917-04-11
32 Rhynchospora sclerioides ridge between Nui and Wailupe Preserved_Specimen Forbes, C.N. 2470 Oahu BISH 1917-04-11
33 Rhynchospora sclerioides Nuuanu Valley, near Pali Preserved_Specimen Forbes, C.N. 1525 Oahu BISH 1909-06-17
34 Rhynchospora sclerioides Koolau Range, Waimea, Pupukea-Kahuku Rd Preserved_Specimen 1 m; in fruit Chock, A.K. 867 Oahu BISH 1953-03-18
35 Rhynchospora sclerioides Paaulau 3, Parker Ranch Preserved_Specimen Rock, J.F.C. 3394 Hawaii BISH 1909-07-06
36 Rhynchospora sclerioides Oahu Preserved_Specimen Rock, J.F.C. 12775 Oahu BISH
37 Rhynchospora sclerioides Laie-Malaekahana ridge, Koolau Mts Preserved_Specimen St.John, H. 13062 Oahu BISH 1933-04-15
38 Rhynchospora sclerioides Molokai Preserved_Specimen Forbes, C.N. 312 Molokai BISH 1912-07-01
39 Rhynchospora sclerioides R fork, Wailupe Valley Preserved_Specimen Garber, D.W. 184 Oahu BISH 1920-01-12
40 Rhynchospora sclerioides Haalelepaakai Preserved_Specimen Munro, G.C. 163 Lanai BISH 1927-07-23
41 Rhynchospora sclerioides Sacred Falls Preserved_Specimen Stone, B.C. 2653 Oahu BISH 1958-01-01
42 Rhynchospora sclerioides Puu Alii, ridge up to Preserved_Specimen Hobdy, R.W. 142 Lanai BISH 1969-07-15
43 Rhynchospora sclerioides [Hawaiian Islands; U.S.A.; Hawaii Preserved_Specimen Hillebrand, W.B. BISH
44 Rhynchospora sclerioides Kaukonahua gulch, Wahiawa Preserved_Specimen Rock, J.F.C. 3023 Oahu BISH 1909-05-15
45 Rhynchospora sclerioides Paaulau 3, Parker Ranch Preserved_Specimen Rock, J.F.C. 3393 Hawaii BISH 1909-07-06
46 Rhynchospora sclerioides [Hawaiian Islands; U.S.A.; O`ahu; Hawai`i; Honolulu] Preserved_Specimen Lay, G.T. Oahu BISH 1826-01-01
47 Rhynchospora sclerioides Pauoa Ridge trail Preserved_Specimen Crosby, M.R. 1344 Oahu BISH 1964-06-13
48 Rhynchospora sclerioides Honolulu, Pauoa Flats Preserved_Specimen Russell, P. 114 Oahu BISH 1932-07-22
49 Rhynchospora sclerioides Nuuanu Valley Preserved_Specimen Rock, J.F.C. 12757 Oahu BISH 1912-01-01
50 Rhynchospora sclerioides Mapulehu Valley Preserved_Specimen Forbes, C.N. 312 Molokai BISH 1912-07-01
51 Rhynchospora sclerioides Koolau Mts., Bryan's Mtn. House Trail at Grant Boundry, ?N ?W Preserved_Specimen Krajina, V.J. 620520026 Oahu BISH 1962-05-20
52 Rhynchospora sclerioides Paaulau 3, Parker Ranch Preserved_Specimen Rock, J.F.C. 3397 Hawaii BISH 1909-07-06
53 Rhynchospora sclerioides Olowalu Valley Preserved_Specimen Forbes, C.N. 2371 Maui BISH 1920-05-14
54 Rhynchospora sclerioides Kalihi Valley Preserved_Specimen Forbes, C.N. 1258 Oahu BISH 1909-04-02
55 Rhynchospora sclerioides Kalihi Valley Preserved_Specimen Forbes, C.N. 1258 Oahu BISH 1909-04-02
56 Rhynchospora sclerioides Ridge back of Tantalus Preserved_Specimen Skottsberg, C.J.F. 57 Oahu BISH 1922-08-07
57 Rhynchospora sclerioides Waiapaa Preserved_Specimen Munro, G.C. 259 Lanai BISH 1913-11-17
58 Rhynchospora sclerioides Koolau Range, Pupukea summit trail Preserved_Specimen Bishop, B. Oahu BISH 1963-10-12
59 Rhynchospora sclerioides Tantalus Preserved_Specimen Swezey, O.H. Oahu BISH 1912-08-04
60 Rhynchospora sclerioides Nuuanu Valley Preserved_Specimen Rock, J.F.C. 12757 Oahu BISH 1912-01-01
61 Rhynchospora sclerioides near summit of central Niu ridge Preserved_Specimen Obata, J.K. 542 Oahu BISH 1985-04-14
62 Rhynchospora sclerioides ridge to Konahuanui Preserved_Specimen Christophersen, E. 1743 Oahu BISH 1931-04-23
63 Rhynchospora sclerioides ridge to Konahuanui Preserved_Specimen Christophersen, E. 1727 Oahu BISH 1931-04-23
64 Rhynchospora sclerioides trail above and W of Wiliwilinui Ridge, Koolau Mts Preserved_Specimen Crosby, M.R. 1537 Oahu BISH 1964-06-24
65 Rhynchospora sclerioides Kaluaaha Valley Preserved_Specimen Forbes, C.N. 385 Molokai BISH 1912-08-01
66 Rhynchospora sclerioides Pupukea Trail Preserved_Specimen Caum, E.L. Oahu BISH 1930-08-12
67 Rhynchospora sclerioides Lanai Preserved_Specimen Munro, G.C. Lanai BISH 1918-01-01
68 Rhynchospora sclerioides Nuuanu Valley Preserved_Specimen Rock, J.F.C. Oahu BISH 1912-05-01
69 Rhynchospora sclerioides Molokai Preserved_Specimen Stokes, J.F.G. Molokai BISH 1909-01-01
70 Rhynchospora sclerioides Molokai Preserved_Specimen Stokes, J.F.G. Molokai BISH 1909-01-01
71 Rhynchospora sclerioides Nuuanu Valley Preserved_Specimen Forbes, C.N. Oahu BISH 1909-06-17
72 Rhynchospora sclerioides Pupukea Preserved_Specimen Meebold, A. Oahu BISH 1932-05-01
73 Rhynchospora sclerioides Koolau Mts., Kawailoa-Punaluu trail Preserved_Specimen Neal, M.C. Oahu BISH 1938-07-03
74 Rhynchospora sclerioides Tantalus, Manoa Cliff Trail Preserved_Specimen Pearsall, G.A. Oahu BISH 1953-07-24
75 Rhynchospora sclerioides Kalihi and Shafter trail Preserved_Specimen Kerr, M. Oahu BISH 1945-08-06
76 Rhynchospora sclerioides Molokai Preserved_Specimen Stokes, J.F.G. Molokai BISH 1909-01-01
77 Rhynchospora sclerioides Koolau Mts., between Punaluu and Kaipaupa Preserved_Specimen Forbes, C.N. Oahu BISH 1909-05-03
78 Rhynchospora sclerioides Lanai Preserved_Specimen Munro, G.C. Lanai BISH 1918-01-01
79 Rhynchospora sclerioides Koolau Mts., between Punaluu and Kaipaupa Preserved_Specimen Forbes, C.N. Oahu BISH 1909-05-03
80 Rhynchospora sclerioides Honolulu Preserved_Specimen Andersson, N.J. Oahu BISH 1852-01-01
81 Rhynchospora sclerioides S Kipapa Gulch, Waipio, Koolau Mts Preserved_Specimen Bryan Jr., E.H. Oahu BISH 1932-05-15
82 Rhynchospora sclerioides Pupukea forest Preserved_Specimen Bryan Jr., E.H. Oahu BISH 1934-08-01
83 Rhynchospora sclerioides Laie trail; Koolau Mountains Preserved_Specimen Welton, P. 433 Oahu BISH 1990-07-05
84 Rhynchospora sclerioides [Hawaiian Islands; U.S.A.; Hawaii Preserved_Specimen Heller, A.A. BISH 1896-01-01
85 Rhynchospora sclerioides W Maui, Honokowai Valley, Amalu branch Preserved_Specimen Ewart III, G.R. 60 Maui BISH 1928-12-21
86 Rhynchospora sclerioides Kipapa Trail, ~2 mi from boundary, S side of trail, below bank disturbed wet lowland forest; Metrosideros, Acacia, Dicranopteris Preserved_Specimen sedge, fertile Reynolds, L.S. 222 Oahu BISH 2006-07-20
87 Rhynchospora sclerioides Hii Mt Preserved_Specimen Forbes, C.N. 680 Kauai BISH 1916-10-22
88 Rhynchospora sclerioides Waiopa, above Preserved_Specimen Munro, G.C. 242 Lanai BISH 1913-11-17
89 Rhynchospora sclerioides W Maui, Lahaina District, Lihau Ohia Mixed Mesic Forest at 3900 ft near an opening of the forest with Metrosideros, Ilex, Coprosma, Dubautia, Pipturus, Labordia, Sadleria, Dicranopteris, Marattia, Liparis, Eragrostis grandis and Deschampsia Preserved_Specimen Welton, P. 971 Maui BISH 1991-07-09
90 Rhynchospora sclerioides Wailau Valley grass near trail Preserved_Specimen St.John, H. 13248 Molokai BISH 1933-07-03
91 Rhynchospora sclerioides Pupukea Acacia, Pleomele Preserved_Specimen Takeuchi, W.N. 2146 Oahu BISH 1985-04-21
92 Rhynchospora sclerioides Laie open hillside Preserved_Specimen flowering Takeuchi, W.N. 2208 Oahu BISH 1985-05-19
93 Rhynchospora sclerioides Koolau Mts., above Pupukea trail, along summit trail, ~1/2 mi beyond shelter ravine; with Alyxia, Straussia, Psidium cattleianum Preserved_Specimen Pearsall, G.A. 383 Oahu BISH 1959-05-04
94 Rhynchospora sclerioides Koolau Mts., Pupukea, summit trail Eugenia, Metrosideros, Acacia; open Preserved_Specimen sedge Stone, B.C. 2796 Oahu BISH 1959-05-04
95 Rhynchospora sclerioides Haupu open shrub/herbland, sparse tree cover; Metrosideros polymorpha, Dicranopteris linearis, Cibotium glaucum, Sadleria pallida, Hedyotis terminalis, Psychotria mariniana, Antidesma platyphyllum, Bobea brevipes, Xylosma hawaiiense, Cheirodendron fauriei, Melicope feddei, Tetraplasandra oahuensis; wind swept ridge Preserved_Specimen terrestrial sedge, tufted in clumps Wood, K.R. 11412 Kauai BISH 2005-08-04
96 Rhynchospora sclerioides W Maui, Lahaina District, Lihau Peak forest understory Preserved_Specimen Hobdy, R.W. 2418 Maui BISH 1985-07-27
97 Rhynchospora sclerioides Olokui NAR, W ridge of Wailau leading up to Olokui plateau terrestrial, Metrosideros-Dicranopteris-Diplopterygium wet forest w. Myrsine lessertiana, Freycinetia arborea, Psychotria hawaiiensis, P. mariniana, P. mauiensis, Xylosma hawaiiense, Cheirodendron trigynum, Urera glabra, Pipturus albidus, Boehmeria grandis, Antidesma Preserved_Specimen sedge Wood, K.R. 14800 Molokai BISH 2011-11-16
98 Rhynchospora sclerioides Halawa Trail koa, lehua Preserved_Specimen Egler, F.E. 37151 Oahu BISH 1937-05-23
99 Rhynchospora sclerioides Ewa, Halawa trail with Rollandia lanceolata, Clermontia kakeana Preserved_Specimen terrestrial Herbst, D.R. 1171 Oahu BISH 1968-06-22
100 Rhynchospora sclerioides Waimea District. Hono O Na Pali NAR, Hanakapiai headwaters, western branch, east of Moaalele. Metrosideros-Cheirodendron-Dicranopteris wet foerst and deeply carved drainage with riparian vegetation with Kadua affinis, Psychotria mariniana, P. hexandra, Coprosma kauaiensis, Syzygium sandwicensis, Perrottetia sandwicensis, Dubautia raillardioides, D. laxa, Melicope wawrana, M. clusiifolia, Myrsine w Preserved_Specimen Sedge, in flower and fruit, occasional along stream bank Wood, K.R. 16402 Kauai BISH 2015-04-10
101 Rhynchospora sclerioides Maakua-Papali ridge, Hauula, Kaipapau FR wooded ridge Preserved_Specimen tufts St.John, H. 13366 Oahu BISH 1933-10-15
102 Rhynchospora sclerioides Waimano trail, Koolau Range moist opening, woods Preserved_Specimen St.John, H. 20205 Oahu BISH 1941-03-23
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