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Hyparrhenia hirta

(L.) Stapf (1919)

This name is accepted

Kingdom: Viridiplantae Phylum: Magnoliophyta Class/Clade: Monocots Order: Poales Family: Poaceae Genus: Hyparrhenia

white hair thatching grass

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Description

Key Characters:

Growth Form:

Stems:

Roots:

Leaves:

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Fruit:

Ploidy:

Habitat:

Elevation Range:

Historical Distribution

Images

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Synonyms (49)

Andropogon ambiguus Gennari (1885)
Andropogon collinus Lojac. (1909)
Andropogon dalmaticus Gand. (1883)
Andropogon distachyos var. hirtus (L.) Koeler (1802)
Andropogon giganteus Ten. (1836)
Andropogon hirsutus var. pubescens Husn. (1896)
Andropogon hirtus L. (1753)
Andropogon hirtus subsp. podotrichus (Hochst. ex Steud.) K.Richt. (1890)
Andropogon hirtus subsp. pubescens (Andersson) K.Richt. (1890)
Andropogon hirtus var. angustissimus Mutel (1837)
Andropogon hirtus var. glabriglumis Oppenh. (1931)
Andropogon hirtus var. glaucus Schrad. (1838)
Andropogon hirtus var. longiaristatus Willk. & Lange (1861)
Andropogon hirtus var. podotrichus (Hochst. ex Steud.) Hack. (1889)
Andropogon hirtus var. pubescens (Andersson) Vis. (1872)
Andropogon hirtus var. velutinus Goiran (1910)
Andropogon modicus De Wild. (1919)
Andropogon pichleri Gand. (1883)
Andropogon pilosus Dufour ex Roem. & Schult. (1817)
Andropogon podotrichus Hochst. ex Steud. (1854)
Andropogon pubescens Vis. (1829)
Andropogon pubescens var. breviaristata Sennen (1932)
Andropogon sinaicus Delile (1837)
Andropogon transvaalensis Stapf (1898)
Anthistiria vulcanica Steud. (1854)
Cymbopogon hirtus (L.) Nees ex Baker (1877)
Cymbopogon hirtus f. pubescens (Andersson) Hayek (1933)
Cymbopogon hirtus subsp. villosus (Pignatti) Pignatti (1977)
Cymbopogon modicus De Wild. (1919)
Cymbopogon pubescens (Andersson) Fritsch (1909)
Cymbopogon transvaalensis (Stapf) Stapf ex Burtt Davy (1912)
Heteropogon hirtus (L.) Andersson (1867)
Heteropogon pubescens Andersson (1867)
Hyparrhenia hirta f. brachyphylla Paunero (1957)
Hyparrhenia hirta f. podotricha (Hochst. ex Steud.) Maire & Weiller (1952)
Hyparrhenia hirta f. pubescens (Andersson) Maire & Weiller (1952)
Hyparrhenia hirta subsp. pubescens (Andersson) Paunero (1957)
Hyparrhenia hirta subsp. villosa Pignatti (1958)
Hyparrhenia hirta var. longiaristata Rothm. & P.Silva (1939)
Hyparrhenia hirta var. podotricha (Hochst. ex Steud.) Pic.Serm. (1951)
Hyparrhenia hirta var. pubescens (Andersson) Ravi (1964)
Hyparrhenia hirta var. villosa Paunero (1957)
Hyparrhenia modica (De Wild.) Robyns (1929)
Hyparrhenia podotricha (Hochst. ex Steud.) Andersson (1867)
Hyparrhenia pubescens (Andersson) Chiov. (1928)
Hyparrhenia sinaica (Delile) G.López (1994)
Sorghum hirtum (L.) Kuntze (1891)
Trachypogon hirtus (L.) Nees (1829)
Trachypogon pubescens (Andersson) Fourr. (1869)

Uses and Culture

USES

  • Yes

Natural History

Statewide Status

Naturalized

Island Status

O'ahu Only found in cultivation
Molokai Naturalized
Lana'i Naturalized
Maui Naturalized
Hawai'i Naturalized

Dispersal Agents


Pollinators

Bibliography

Name Published In: D.Oliver & auct. suc. (eds.), Fl. Trop. Afr. 9: 315 (1919)

Other References

Wagner et al. 1990:1554 (Mo?, L? [adventive], DESCR); Wagner & Herbst 1995:24 (NEWNAT/Mo, L); Herbst & Clayton 1998:28 (KEY); Faccenda 2023c:123 (EM, H)

Occurrences

SNo. Scientific Name Locality Habitat Basis of Record Description Recorded By Record Number Island Source Date
1 Hyparrhenia hirta Maunaloa town, intersection of Halena St. and Pu'unana St In undeveloped lot with other weeds, sunny, dry area Preserved_Specimen Common in this lot, but not encountered anywhere else during roadside surveys. Plants caespitose, to 1.5 m tall, leaves glaucous. Over 50 plants seen Faccenda, K. 2904 Molokai BISH 2022-12-26
2 Hyparrhenia hirta Honolulu, Pensacola St., Hawaii Agriculture Experimental Station grass in cultivated plot Preserved_Specimen Wong, R. Oahu BISH 1941-01-08
3 Hyparrhenia hirta Keomuku Rd. Along road in many places. Growing in dry scrub with Eucalyptus and Panicum maximum. Preserved_Specimen Naturalized. Starr, F. 7040404 Lanai BISH 2007-04-04
4 Hyparrhenia hirta Munro Trail, alongside dirt road approaching Lanaihale summit from NW side Disturbed mesic shrubland with planted Araucaria, Dicranopteris, Machaerina, Diplopterygium. Preserved_Specimen Imada, C. 984 Lanai BISH 1998-03-27
5 Hyparrhenia hirta Southern beginning of the Munro Trail, along road Locally common along road Preserved_Specimen Degener, O. 31106 Lanai BISH 1963-08-24
6 Hyparrhenia hirta Lanai Common under trees in lee of the wind and in shade. Preserved_Specimen Grass 1-3 ft ht, taller plants have 3-4 flower spikes on them. Palumbo, D. 17 Lanai BISH 1981-09-23
7 Hyparrhenia hirta Mauna Loa Preserved_Specimen Grass to 3 ft tall. Uehara, S. 7 Molokai BISH 1962-04-26
8 Hyparrhenia hirta Airport road (440) about 1 km. makai of Lanai City. WGS coordinates: Lat. 20.812433, Long. -156.925248 Roadside and abandoned plantation lands. Abundant along this road in both mowed areas and in less disturbed plantation lands. The plantation lands are largely Urochloa maxima and Digitaria insularis, but maybe 5% of it is dominated by Hyparrhenia. Preserved_Specimen Leaves glaucous Faccenda, K. 3128 Lanai BISH 2023-06-19
9 Hyparrhenia hirta S beginning of Munro Trail Common locally along road. Preserved_Specimen Degener, O. 31106 Molokai BISH 1963-08-24
10 Hyparrhenia hirta Pensacola Station Preserved_Specimen Lyman, R.A. 3187 Oahu BISH 1939-10-05
11 Hyparrhenia hirta Puu Manu In company w/ Grevillea robusta, Cymbopogon refractus & Eucalyptus spp. Preserved_Specimen Nagata, K.M. 3717 Lanai BISH 1987-11-08
12 Hyparrhenia hirta Rd to Waikehua [sp?] Preserved_Specimen Uehara, S. 3 Molokai BISH 1962-05-16
13 Hyparrhenia hirta Awehi Gulch exclosure site Dry to mesic slope on deep, loose soil. Associated species: Dodonaea viscosa, Metrosideros polymorpha, Psidium cattleianum, Schinus terebinthifolius, Melinis repens, Melinis minutiflora, Pteridium aquilinum. Preserved_Specimen Dominant weedy, bunching grass up to 4 ft tall. Imada, C. 200312 Lanai BISH 2003-07-09
14 Hyparrhenia hirta Kaohai, Puu Manu, below Dominant on arid slopes. Preserved_Specimen Nagata, K.M. 3715 Lanai BISH 1987-11-08
15 Hyparrhenia hirta On summit of Puumahanalua Scrubby dryland vegetation of Dodonaea, Waltheria, Heteropogon, Asclepias physocarpa, Sida fallax. Preserved_Specimen Common grass up to 3 ft tall. Imada, C. 20039 Lanai BISH 2003-06-16
16 Hyparrhenia hirta Waiapaa Gulch, SE of Lanai City, leeward side of Lanaihale, west-facing slope Common bunchgrass up to 6 ft tall on steep, dry gulch slopes, growing with Melinis minutiflora, Waltheria, scattered Osteomeles. Preserved_Specimen Imada, C. 200246 Lanai BISH 2002-08-13
17 Hyparrhenia hirta Kaumalapau Highway, along upper part, near Lanai City In large field of Psidium trees. Preserved_Specimen Clumpy perennial grass to 1 m ht. Stalks glabrous, hirsute at joints of sheath & blade. Lvs 15 cm long by 2mm wide. Involute, glabrous. Inflr flexuous, racemes whitish, silky-villous. Spence, G. 309 Lanai BISH 1973-10-18
18 Hyparrhenia hirta Keomoku Rd, about 2km N of Lanai city. Roadside, dry, sunny area. Preserved_Specimen Common on roadside. Faccenda, K. 3158 Lanai BISH 2023-06-20
19 Hyparrhenia hirta Koele Locally common weed along unimproved road. Preserved_Specimen Weed. Oppenheimer, H.L. 100629 Lanai BISH 2006-10-19
20 Hyparrhenia hirta Kula, Copp Rd. & Holomakani Dr. Roadside weed in occasionally mowed area Preserved_Specimen Two clumps seen, leaves blueish, perennial Faccenda, K. 2824 Maui BISH 2022-10-29
21 Hyparrhenia hirta Along Awehi Road above Mauna O Umi Scattered in dry Dodonaea shrubland on rocky substrate. Preserved_Specimen Clumping grass 1+ m. tall. Oppenheimer, H.L. 50619 Lanai BISH 2006-05-11
22 Hyparrhenia hirta Honolulu, Pensacola St; Hawaii Agriculture Experimental Station. grass plot Preserved_Specimen Hosaka, E.Y. 2617 Oahu BISH 1941-11-25
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