Eragrostis curvula |
Eragrostis hypnoides |
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weeping lovegrass |
teal lovegrass |
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Habit | Plants perennial, (45)60–150 cm tall, cespitose, without glands. | Plants annual, (2)5–12(20)cm tall, stoloniferous, mat-forming, without glands. |
Culms | erect, glabrous. |
decumbent and rooting at the lower nodes, often branched, glabrous or lower internodes hairy. |
Leaves | mostly basal; sheaths with scattered hairs to 9 mm; blades 12–50(65) cm × 1–3 mm. |
sheaths with spreading hairs on the margins; collars; and tips; hairs 0.1–0.6 mm; blades 0.5–2.5 cm × 1–2 mm. |
Inflorescences | 16–35(40) × (4)8– 24 cm; ovate to oblong; open; primary branches 3–14 cm, diverging 10–80° from the inflorescence axis; pedicels 0.5–5 mm, appressed; flexible; disarticulation irregular or acropetal; basal rachilla internodes persistent. |
terminal and axillary, 1–3.5 × 0.7–2.5 cm; ovate; open to congested; primary branches 0.1–0.5 cm, appressed to strongly divergent, glabrous; pedicels 0.2–1 mm, ciliate; disarticulation acropetal. |
Spikelets | 4–8.2(10) × 1.2–2 mm, gray to yellowish, with 3–10 florets. |
4–13 × 1–1.5 mm, loosely overlapping; greenish yellow to purplish, 12–35 florets. |
Glumes | lanceolate; hyaline; lower glumes 1.2–2.6 mm; upper glumes 2–3 mm. |
linear-lanceolate to lanceolate; hyaline; lower glumes 0.4–0.7 mm; upper glumes 0.8–1.2 mm. |
Caryopses | 1–1.7 mm, ellipsoid to obovoid, dorsally compressed, with or without a shallow; broad groove. |
0.3–0.5 mm, ellipsoid. |
Lemmas | 1.8–3 mm; ovate, membranous; lateral veins conspicuous; tips acute. |
1.4–2 mm; ovate, strongly 3-veined; veins greenish; tips acuminate. |
Paleas | 1.8–3 mm; hyaline to membranous, obtuse. |
0.7–1.2 mm; hyaline, persistent; keels minutely scabrous; acute to obtuse. |
Anthers | 3, 0.6–1.2 mm; reddish brown. |
2, 0.2–0.3 mm; brownish. |
2n | =40, 60, 80. |
=20. |
Eragrostis curvula |
Eragrostis hypnoides |
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Distribution | ||
Discussion | Roadsides, weedy meadows, disturbed areas. 0–900m. BW, Casc, Col, ECas, Sisk, WV. CA, WA; east across southern US to VA and FL, south to Mexico; southern Africa. Exotic. Eragrostis curvula is a densely cespitose plant that produces a nodding panicle in late summer. It slightly resembles a fineleaved fescue. |
Muddy or sandy margins of rivers, lakes and ponds. 0–1400m. BW, Col, CR, WV. CA, ID, NV, WA; throughout most of US, north to southeastern Canada, south to South America. Native. Eragrostis hypnoides is a small, stoloniferous, late-season grass that forms mats on receding shorelines of streams and ponds. |
Source | Flora of Oregon, volume 1, page 404 Barbara Wilson, Richard Brainerd, Nick Otting |
Flora of Oregon, volume 1, page 404 Barbara Wilson, Richard Brainerd, Nick Otting |
Sibling taxa | ||
Synonyms | Eragrostis curvula var. curvula | |
Web links |
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