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weeping love grass

spike lovegrass

Habit Plants perennial; cespitose, forming innovations at the basal nodes, without glands. Plants perennial; cespitose, with innovations, without rhizomes.
Culms

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

75-100 cm, erect, glabrous.

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.

hirtellous on the margins when immature, apices glabrous or hairy shorter than 0.5 mm;

ligules 0.2-0.3 mm;

blades 20-40 cm long, 2-5(6) mm wide, flat to involute, glabrous abaxially, scabrous adaxially.

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.

22-40 cm long, 0.3-0.6 cm wide, spikelike, dense;

primary branches shorter than 1.2 cm, closely appressed, spikelet-bearing to the base;

pulvini glabrous;

pedicels 0.1-0.6 mm, mostly appressed, hirtellous.

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.

1.4-2.2 mm long, 0.9-1.2 mm wide, ovate, stramineous to light greenish, with 2-3 florets;

disarticulation basipetal, in the rachilla below the individual florets or at the base of the florets, glumes 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.

elliptic to ovate, hyaline, keels ciliolate;

lower glumes 0.7-1 mm;

upper glumes 0.9-1.3 mm, apices obtuse;

lemmas 1.5-2.1 mm, ovate, membranous to hyaline, apices acute to obtuse;

paleas 1.1-1.6 mm, hyaline, not wider than the lemmas, apices obtuse;

anthers 2, 0.3-0.4 mm, reddish-brown.

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.

0.7-1 mm, ellipsoid, somewhat ventrally flattened, smooth to faintly striate, reddish-brown.

2n

= 40, 50.

= 40.

Eragrostis curvula

Eragrostis spicata

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
TX
[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 spicata grows in moist areas in prairies, usually in deep, sandy, clay loam soils, at 0-70 m. It is native from southern Texas to Mexico and in Paraguay and Argentina. In North America, it grows with Andropogon, Quercus stellata, Prosopsis glandulosa, and Acacia.

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

Source FNA vol. 25, p. 76. FNA vol. 25.
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. 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. superba, E. swallenii, E. tef, E. trichodes, E. trichophora, E. unioloides
Synonyms E. curvula var. conferta, E. chloromelas
Name authority (Schrad.) Nees Vasey
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