Eragrostis intermedia |
Eragrostis minor |
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plains lovegrass |
eragrostide faux-paturin, lesser love grass, little love grass |
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Habit | Plants perennial; cespitose, with innovations, without rhizomes, not glandular. | Plants annual; tufted, without innovations. |
Culms | (30)40-90(110) cm, erect, glabrous below the nodes. |
10-45 cm, erect to decumbent, sometimes with a ring of glandular tissue below the nodes. |
Sheaths | sparsely pilose on the margins, apices hairy, hairs to 8 mm, not papillose-based; ligules 0.2-0.4 mm; blades (4)10-20(30) cm long, 1-3 mm wide, flat or involute, abaxial surfaces glabrous, adaxial surfaces densely hairy behind the ligules, elsewhere usually glabrous, occasionally sparsely hairy. |
sometimes glandular on the midveins, hairy at the apices, hairs |
Panicles | 15-40 cm long, (8.5)15-30 cm wide, ovate, open; primary branches 4-25 cm, diverging 20-90° from the rachises, capillary; pulvini hairy or glabrous; pedicels 2-14 mm, divergent. |
4-20 cm long, 2.2-8(10) cm wide, ovate, open to contracted, rachises sometimes with glandular spots or pits below the nodes, rarely with a glandular ring, glands usually dull, greenish-gray to stramineous; primary branches 0.5-6 cm, diverging 20-100° from the rachises; pulvini glabrous or hairy; pedicels 1-4 mm, stiff, straight, divergent, usually with a distal ring of crateriform glands. |
Spikelets | 3-7 mm long, 1-1.8 mm wide, narrowly lanceolate, olivaceous to purplish, with (3)5-11 florets; disarticulation acropetal, paleas persistent. |
4-7(11) mm long, 1.1-2.2 mm wide, narrowly ovate, mostly reddish-purple to greenish, occasionally grayish, with 7-12(20) florets; disarticulation acropetal, paleas persistent. |
Glumes | lanceolate to ovate, hyaline to membranous; lower glumes 1.1-1.7 mm, narrower than the upper glumes; upper glumes 1.3-2 mm, apices acuminate to acute; lemmas 1.6-2.2 mm, ovate, membranous, hyaline near the margins, lateral veins inconspicuous, apices acute; paleas 1.4-2.1 mm, hyaline, narrower than the lemmas, apices obtuse to acute; anthers 3, 0.5-0.8 mm, purplish. |
broadly ovate, membranous; lower glumes 0.9-1.4 mm; upper glumes 1.2-1.6 mm; lemmas 1.4-1.8 mm, broadly ovate, membranous, keels occasionally with 1-2 crateriform glands, apices acute to obtuse; paleas 1.3-1.7 mm, hyaline, keels smooth or scabridulous, scabridities to 0.1 mm, apices obtuse to acute; anthers 2, 0.2-0.3 mm, reddish-brown. |
Caryopses | 0.5-0.9 mm, rectangular-prismatic, somewhat laterally compressed, with a well-developed adaxial groove, striate, opaque, reddish-brown. |
0.4-0.7 mm, ellipsoid, not grooved, striate, light brown. |
2n | = ca. 54, 60, 72, ca. 74, 80, 100, 120. |
= 40. |
Eragrostis intermedia |
Eragrostis minor |
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Distribution |
AL; AR; AZ; CA; FL; GA; KS; LA; MA; ME; MO; MS; NC; NM; OK; SC; TN; TX; VA
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AL; AR; CA; CO; CT; DC; DE; FL; GA; IA; ID; IL; IN; KS; KY; LA; MA; MD; ME; MI; MN; MO; MS; MT; NC; NE; NH; NJ; NV; NY; OH; OK; OR; PA; RI; SC; SD; TN; TX; UT; VA; VT; WA; WI; WV; WY; BC; NB; NS; ON; PE; QC; SK
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Discussion | Eragrostis intermedia grows in clay, sandy, and rocky soils, often in disturbed sites, at 0-1850 m. Its range extends from the United States through Mexico and Central America to South America. Eragrostis intermedia is similar to the more widespread E. lugens, but differs from that species in having wider spikelets, longer lemmas, and caryopses with a prominent adaxial groove. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Eragrostis minor is a European species that now grows in gravelly roadsides and disturbed sites, especially near railroad yards, at 20-1600 m in southern Canada and the contiguous United States. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 25, p. 97. | FNA vol. 25, p. 85. |
Parent taxa | Poaceae > subfam. Chloridoideae > tribe Cynodonteae > Eragrostis | Poaceae > subfam. Chloridoideae > tribe Cynodonteae > Eragrostis |
Sibling taxa | ||
Synonyms | E. poaeoides | |
Name authority | Hitchc. | Host |
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