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weeping love grass

bigtop lovegrass

Habit Plants perennial; cespitose, forming innovations at the basal nodes, without glands. Plants perennial; cespitose, with innovations and hardened bases, without rhizomes, not glandular.
Culms

(45)60-150 cm, erect, glabrous or glandular.

(30)45-100 cm, erect, glabrous below the nodes.

Sheaths

with scattered hairs, hairs to 9 mm;

ligules 0.6-1.3 mm;

blades 12-50(65) cm long, 1-3 mm wide, flat to involute, abaxial surfaces glabrous, sometimes scabridulous, adaxial surfaces with scattered hairs basally, hairs to 7 mm.

rarely glabrous, apices and distal margins usually hairy, sometimes also densely hairy basally, dorsally, and on the collars, hairs to 6 mm, papillose-based;

ligules 0.2-0.4 mm;

blades 25-60 cm long, 3-8(11) mm wide, flat to loosely involute, usually glabrous, adaxial surfaces sometimes hairy basally.

Panicles

16-35(40) cm long, (4)8-24 cm wide, ovate to oblong, open;

primary branches 3-14 cm, diverging 10-80° from the rachises;

pulvini glabrous or not;

pedicels 0.5-5 mm, appressed, flexible.

25-85 cm long, 15-40 cm wide, broadly ovate, open;

primary branches mostly 4-35(45) cm, diverging 20-90° from the rachises, capillary;

pulvini glabrous or hairy;

pedicels 2-28 mm, divergent.

Spikelets

4-8.2(10) mm long, 1.2-2 mm wide, linear-lanceolate, plumbeous to yellowish, with 3-10 florets;

disarticulation irregular to acropetal, proximal rachilla segments persistent.

2-4(5) mm long, 1-1.7 mm wide, lanceolate, greenish with purplish tinges, with 2-6 florets;

disarticulation acropetal, paleas persistent.

Glumes

lanceolate, hyaline;

lower glumes 1.2-2.6 mm;

upper glumes 2-3 mm;

lemmas 1.8-3 mm, ovate, membranous, lateral veins conspicuous, apices acute;

paleas 1.8-3 mm, hyaline to membranous, apices obtuse;

anthers 3, 0.6-1.2 mm, reddish-brown.

lanceolate, hyaline to membranous;

lower glumes 1.1-2 mm;

upper glumes 1.5-2.8 mm, apices acuminate to acute;

lemmas 1.6-2.4 mm, ovate, membranous, hyaline near the margins, lateral veins inconspicuous, apices acute;

paleas 1.2-2.2 mm, hyaline, bases not projecting beyond the lemmas, apices acute to obtuse;

anthers 3, 0.3-0.8 mm, purplish.

Caryopses

1-1.7 mm, ellipsoid to obovoid, dorsally compressed, adaxial surfaces with a shallow, broad groove or ungrooved, smooth, mostly translucent, light brown, bases often greenish.

0.8-1 mm, rectangular-prismatic, somewhat laterally compressed, with or without a well-developed adaxial groove, striate, opaque, reddish-brown.

2n

= 40, 50.

= 100.

Eragrostis curvula

Eragrostis hirsuta

Distribution
from FNA
AL; AR; AZ; CA; CO; DE; FL; GA; IL; KS; KY; LA; MA; MD; MO; MS; NC; NJ; NM; NY; OH; OK; OR; PA; SC; TN; TX; UT; VA; WA; WV; HI; PR
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from FNA
AL; AR; DE; FL; GA; IL; KY; LA; MA; MD; MO; MS; NC; NJ; OH; OK; SC; TN; TX; VA; WV
[WildflowerSearch map]
[BONAP county map]
Discussion

Eragrostis curvula is native to southern Africa. It is often used for reclamation because it provides good ground cover but, once introduced, it easily escapes. In the Flora region, it grows on rocky slopes, at the margins of woods, along roadsides, and in waste ground, at 20-2400 m, usually in pine-oak woodlands, and yellow pine and mixed hardwood forests.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Eragrostis hirsuta grows in sandy clay loams on the coastal plain and along roadsides, at 0-150 m, usually in association with Pinus palustris and Quercus. Its range extends from the southeastern United States through eastern Mexico to Guatemala and Belize.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 25, p. 76. FNA vol. 25, p. 95.
Parent taxa Poaceae > subfam. Chloridoideae > tribe Cynodonteae > Eragrostis Poaceae > subfam. Chloridoideae > tribe Cynodonteae > Eragrostis
Sibling taxa
E. airoides, E. amabilis, E. atrovirens, E. bahiensis, E. barrelieri, E. capillaris, E. cilianensis, E. ciliaris, E. cumingii, E. curtipedicellata, E. cylindriflora, E. echinochloidea, E. elliottii, E. elongata, E. erosa, E. frankii, E. gangetica, E. hirsuta, E. hypnoides, E. intermedia, E. japonica, E. lehmanniana, E. lugens, E. lutescens, E. mexicana, E. minor, E. obtusiflora, E. palmeri, E. pectinacea, E. pilosa, E. plana, E. polytricha, E. prolifera, E. refracta, E. reptans, E. scaligera, E. secundiflora, E. sessilispica, E. setifolia, E. silveana, E. spectabilis, E. spicata, E. superba, E. swallenii, E. tef, E. trichodes, E. trichophora, E. unioloides
E. airoides, E. amabilis, E. atrovirens, E. bahiensis, E. barrelieri, E. capillaris, E. cilianensis, E. ciliaris, E. cumingii, E. curtipedicellata, E. curvula, E. cylindriflora, E. echinochloidea, E. elliottii, E. elongata, E. erosa, E. frankii, E. gangetica, E. hypnoides, E. intermedia, E. japonica, E. lehmanniana, E. lugens, E. lutescens, E. mexicana, E. minor, E. obtusiflora, E. palmeri, E. pectinacea, E. pilosa, E. plana, E. polytricha, E. prolifera, E. refracta, E. reptans, E. scaligera, E. secundiflora, E. sessilispica, E. setifolia, E. silveana, E. spectabilis, E. spicata, E. superba, E. swallenii, E. tef, E. trichodes, E. trichophora, E. unioloides
Synonyms E. curvula var. conferta, E. chloromelas E. hirsuta var. laevivaginata
Name authority (Schrad.) Nees (Michx.) Nees
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