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Eragrostis paupera

Jedwabn. (1924)

This name is accepted

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

dwarf eragrostis, lovegrass

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Description

Key Characters:

Growth Form: Perennials; culms densely tufted, tough, stiff, strictly erect, up to 2 dm tall, sharply scabrous, almost completely covered by leaf sheaths.

Stems:

Roots: Roots fibrous.

Leaves: Leaves simple. Alternate. Blades up to 5 cm long, but usually shorter. Upper surfaces hispid; lower surfaces slightly scabrous, strongIy involute when dry. Veins parallel. Sheaths glabrous, auricles prominent, bristly; ligule a band of stiff bristles ca. 0.6 mm long. Stipules absent.

Flowers: Inflorescences paniculate, weakly branched, racemose, sharply scabrous; spikelets few to ca.40, straight to somewhat falcate, 5-45 mm long, flattened, 1-2 mm wide; glumes membranous, strongly keeled, apex rounded or slightly emarginate, first glume ca. 1.5 mm long, second glume ca. 2 mm long. Lemmas imbricate, concealing rachilla, appressed, spreading slightly in age, ca. 1.8 mm long, strongly keeled, 3-nerved, keel sharply scabrous above, otherwise glabrous, margins hyaline, apex emarginate; palea oblong, bent outward, ca. 1.5 mm long, persistent, margins hyaline, thickened, hispid-ciliate, apex truncate.

Fruit: Caryopsis golden brown; somewhat flattened; subglobose to ovoid; 0.5-0.8 mm long; 0.4-0.5 mm wide; adaxial surface with a small brown tubercle at base; abaxial surface convex with a somewhat divided depression in lower 1/2.

Ploidy:

Habitat: Occurring in coastal sites on coral sand; gravel and saline flats.

Elevation Range:

Historical Distribution

Images

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Uses and Culture

USES

Natural History

Statewide Status

Indigenous

Island Status

Mokupāpapa (Kure atoll) Indigenous
Kuaihelani (Midway Atoll) Indigenous
Manawai (Pearl & Hermes Atoll) Indigenous
O'ahu Indigenous
Lalo (French Frigate Shoals) Indigenous

Dispersal Agents


Pollinators

Bibliography

Name Published In: Bot. Arch. 5: 214 (1924)

Other References

Wagner et al. 1990:1543 (Ku, Mi, PH, FF, O); Herbst & Clayton 1998:25/Snow & Lau 2010:50/Faccenda 2022:67, 69 (KEY); Starr & Martz 1999/Herbst 1219 BISH (FF†, 1968); Hosaka s.n. BISH 119050 (O†, 1937)

Occurrences

SNo. Scientific Name Locality Habitat Basis of Record Description Recorded By Record Number Island Source Date
1 Eragrostis paupera Green Island. East Beach Few small clumps in sand just below vegetattion line Preserved_Specimen Herbst, D.R. 6272 Kure Atoll BISH 1979-01-04
2 Eragrostis paupera Eastern side of western part of the island (Southeast Island) In sand, occasional on both sides of the lagoon. Preserved_Specimen Herbst, D.R. 6488 Pearl & Hermes Atoll BISH 1980-07-07
3 Eragrostis paupera [Hawaiian Islands; U.S.A.; North-West Hawaiian Islands; Kure Atoll; Hawaii; ALong Lagoon Scattered plants on sand dunes along lagoon Preserved_Specimen Clay, H.F. Kure Atoll BISH 1959-10-03
4 Eragrostis paupera Dry, exposed, cobble area Preserved_Specimen Native. Al-Bayer, S. Kure Atoll BISH 2018-11-23
5 Eragrostis paupera Windward beach, ocean side Beach. Preserved_Specimen Corn, C. Kure Atoll BISH 1979-01-03
6 Eragrostis paupera Southeast Island On periphery of vegetation zone Preserved_Specimen Conant, S. 198 Pearl & Hermes Atoll BISH 1983-08-10
7 Eragrostis paupera Near beach on northwest side In sand Preserved_Specimen Long, C.R. 2226 Kure Atoll BISH 1964-09-14
8 Eragrostis paupera Tern Islet; Northeast side of runway In sand & associated with Euphorbia & Tribulus Preserved_Specimen Short grass in fruit Long, C.R. 2504 French Frigate Shoals BISH 1964-09-28
9 Eragrostis paupera Barbers Point, east of lighthouse where old road meets beach, back of beach In open, thin, very dry soil Preserved_Specimen Egler, F.E. 37273 Oahu BISH 1937-08-11
10 Eragrostis paupera Green Island, East Beach small clumps growing in sand at lower vegetation line. Preserved_Specimen Herbst, D.R. 6272 Kure Atoll BISH 1979-01-04
11 Eragrostis paupera Barbers Point, Coral plain Open spot near beach Preserved_Specimen Hosaka, E.Y. Oahu BISH 1937-08-08
12 Eragrostis paupera Southeastern side of island In sand at vegetation line Preserved_Specimen Herbst, D.R. 6455 Kure Atoll BISH 1980-07-03
13 Eragrostis paupera Oahu Preserved_Specimen Mann, H. 44 Oahu BISH 1864-01-01
14 Eragrostis paupera unknown Preserved_Specimen (Not on sheet) BISH
15 Eragrostis paupera Tern Islet; Northeastern end of runway Preserved_Specimen Herbst, D.R. 1219 French Frigate Shoals BISH 1968-08-31
16 Eragrostis paupera more specific locality not given Preserved_Specimen Bookless, L. Kure Atoll BISH 1993-09-01
17 Eragrostis paupera Northwestern Hawaiian Islands Growing on sand near the water on the west side shoreline. Preserved_Specimen Bunch grass. Conant, S. 140 Pearl & Hermes Atoll BISH 1983-07-21
18 Eragrostis paupera Ocean Island., N side Along exposed side of dunes Preserved_Specimen Bunch-grass to 1/6 m. high Caum, E.L. 7 Kure Atoll BISH 1923-04-17
19 Eragrostis paupera Green Island Common in open sandy areas. Pioneer in clear areas Preserved_Specimen Lamoureux, C.H. 2782 Kure Atoll BISH 1964-08-14
20 Eragrostis paupera Ocean Island. North side Along exposed side of dunes Preserved_Specimen To 1/6 m high Caum, E.L. 7 Kure Atoll BISH 1923-04-17
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