Eragrostis secundiflora
Eragrostis erosa
red lovegrass
Chihuahua lovegrass, Chihuahuan lovegrass
30-75 cm, erect, glabrous below.
70-110 cm, erect, glabrous below the nodes.
mostly glabrous, hairy at the apices, hairs to 4 mm;
ligules 0.2-0.3 mm;
blades 10-25(40) cm long, 1-5 mm wide, involute, glabrous abaxially, scabridulous adaxially, sometimes also sparsely pilose.
hairy at the apices and sometimes on the upper margins, hairs to 4 mm, not papillose-based;
ligules 0.2-0.4 mm;
blades (8)12-30 cm long, 1.5-3.8 mm wide, flat to involute, abaxial surfaces glabrous, adaxial surfaces scabridulous, glabrous or sparsely hairy, hairs to 4 mm.
(3)5-30 cm long, 1-15 cm wide, from narrowly oblong, glomerate, and interrupted below to ovate and open;
primary branches 0.5-12(16) cm, appressed or diverging up to 40° from the rachises, stiff;
pulvini glabrous or sparsely hairy;
pedicels 0-1(3) mm, appressed, flattened.
25-45 cm long, (5)12-30 cm wide, broadly ovate, open;
primary branches mostly 4-20 cm, diverging 20-90° from the rachises, capillary, sinuous;
pulvini glabrous or hairy;
pedicels 1-18 mm, appressed or divergent, proximal spikelets on each branch usually with pedicels shorter than 5 mm.
6-16(23) cm long, 2.4-5 mm wide, ovate to linear-elliptic, flattened, stramineous, with reddish-purple margins or completely reddish-purple, with 10-45 florets;
disarticulation basipetal, florets falling intact and before the glumes.
5-9 mm long, 1-3 mm wide, lanceolate, plumbeous, with 5-12 florets;
disarticulation acropetal, glumes first, then the lemmas, paleas persistent.
ovate-lanceolate to lanceolate, membranous;
lower glumes 1.7-3 mm;
upper glumes 2.2-4 mm, apices acuminate;
lemmas 2-6 mm, ovate, membranous to leathery, apices usually acuminate or attenuate, sometimes acute;
paleas 1.5-3 mm, membranous to leathery, narrower than the lemmas, apices obtuse, sometimes bifid;
anthers 2, 0.2-0.5 mm, brownish.
lanceolate to ovate, membranous;
lower glumes 1.3-2.4 mm;
upper glumes 1.6-2.6 mm;
lemmas 2.4-3 mm, ovate, mostly membranous, hyaline near the margins and apices, lateral veins inconspicuous, apices acute;
paleas 1.5-3 mm, hyaline, narrower than the lemmas, apices obtuse to truncate;
anthers 3, 0.6-1.7 mm, purplish.
0.8-1.3 mm, ellipsoid, somewhat laterally flattened, smooth, reddish-brown.
0.8-1.6 mm, subellipsoid, terete to somewhat laterally compressed, with a well-developed adaxial groove, faintly striate, opaque, reddish-brown.
= 40.
= unknown.
Eragrostis secundiflora
Eragrostis erosa
There are two subspecies of E. secundiflora; plants from the Flora region belong to E. secundiflora subsp. oxylepis (Torrey) S.D. Koch. They grow in sandy soils, dunes, grasslands, beaches, and roadsides of the southern United States and northern Mexico, at 0-1000 m. Eragrostis secundiflora J. Presl subsp. secundiflora grows in Mexico and Central and South America.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Eragrostis erosa grows on rocky slopes and hills, at 1200-2300 m, often in association with Pinus edulis, Juniperus monosperma, and Bouteloua gracilis. Its range extends from New Mexico and western Texas to northern Mexico.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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