Muhlenbergia torreyi
Muhlenbergia reverchonii
ring muhly
seep muhly
10-40(50) cm, decumbent, usually all the nodes concealed by the sheaths;
internodes mostly scabrous or smooth, hispidulous below the nodes.
40-80 cm, stiffly erect from the base, not conspicuously branched;
internodes glabrous, sometimes puberulent below the nodes.
shorter than the internodes, smooth or scabridulous, basal sheaths rounded, not becoming spirally coiled when old;
ligules (2)4-7(9) mm, firmer near the base, obtuse, lacerate;
blades 8-35 cm long, 1-2 mm wide, flat or involute, filiform, glabrous abaxially, densely hirtellous adaxially.
strongly basally concentrated, most blades not reaching more than 1/5 of the plant height;
sheaths shorter than the internodes, rounded, not keeled, scabridulous or smooth, not becoming spirally coiled when old;
ligules 2-5(7) mm, hyaline, acuminate, lacerate, often with lateral lobes;
blades 1-3(5) cm long, 0.3-0.9 mm wide, tightly involute or folded, arcuate, scabridulous, midveins and margins not thickened, green, apices somewhat sharp-pointed.
7-21 cm long, 3-15 cm wide, diffuse;
primary branches 1-8 cm, diverging 30-90° from the rachises, stiff, naked basally;
pedicels 1-8 mm, sometimes appressed to the branches.
10-20(30) cm long, 4-15 cm wide, about as wide as long, loosely contracted to open but not diffuse;
primary branches 1.4-10 cm, capillary, diverging up to 80° from the rachises, scabridulous, naked basally, lower branches with 5-15(20) spikelets;
pedicels 3-25 mm, longer than the spikelets, capillary, stiff, or flexuous.
2-3.5 mm.
3.5-5 mm, stramineous or brownish to purplish.
equal, 1.3-2.5 mm, scabridulous, 1-veined, apices acute to acuminate, minutely erose, unawned or awned, awns to 1.1 mm;
lemmas 2-3.2(3.5) mm, narrowly elliptic to lanceolate, appressed-pubescent on the basal 1/2 - 3/4 of the margins and midveins, apices scabrous, acuminate, awned, awns 0.5-4 mm;
paleas 2-3.2(3.5) mm, narrowly elliptic, intercostal region sparsely pubescent, apices acuminate;
anthers 1.2-2.1 mm, greenish.
subequal, 1-3 mm, shorter than the florets, hyaline, mostly sparsely hirtellous, apices glabrous, 1-veined (sometimes faintly so), acute, occasionally mucronate, mucros shorter than 0.7 mm;
lemmas 3.5-5 mm, narrowly lanceolate, calluses hairy, hairs to 0.5 mm, lemma bodies glabrous and smooth, apices scabridulous, acuminate, awned, awns 0.5-4(6) mm, clearly demarcated from the lemma bodies;
paleas 3.5-5 mm, narrowly lanceolate, mostly glabrous;
anthers 1.1-2 mm, yellowish to purplish.
1.7-2 mm, fusiform, brownish.
2-2.4 mm, fusiform, brownish.
= 20, 21.
= 20.
Muhlenbergia torreyi
Muhlenbergia reverchonii
Muhlenbergia torreyi grows in desert grasslands and open woodlands on sandy mesas, calcareous rock out-crops, and rocky slopes, at elevations of 1000-2450 m. Its range extends from the southwestern United States to northern Mexico. It also grows, as a disjunct, in northwestern Argentina.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Muhlenbergia reverchonii grows on calcareous rocky slopes, flats, and limestone rock outcrops, at elevations of 150-650 m. It is restricted to Oklahoma and Texas. Muhlenbergia reverchonii resembles M. capillaris and M. setifolia in many respects, but differs from the former in its smooth and shiny lemmas, and from the latter in its wider panicles, spreading panicle branches, acute glumes, and more shortly awned lemmas.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
CalFlora
KS Wildflowers
WildflowerSearch
iNaturalist
USDA Plants Database
