Muhlenbergia sobolifera |
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rock muhly |
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Habit | Plants perennial; rhizomatous, usually not cespitose. |
Culms | 25-95 cm tall, 0.8-1.5 mm thick, erect or ascending; internodes smooth, shiny, and glabrous for most of their length, scabridulous immediately below the nodes. |
Sheaths | glabrous, margins hyaline; ligules 0.3-1 mm, membranous, truncate, ciliolate; blades 4-16 cm long, 2-7 mm wide, flat, glabrous, usually smooth, occasionally scabridulous. |
Panicles | 4-18 cm long, 0.2-0.8 cm wide, narrow, usually exserted; axillary panicles usually exserted, sometimes partially included in the subtending sheath; primary branches 0.6-4 cm, ascending to appressed; pedicels 0.3-1.6 mm, strigose. |
Spikelets | 1.6-3 mm, erect, overlapping the next spikelet on the branch by 1/2 its length. |
Glumes | equal to subequal, 1-2.5 mm, much shorter than the florets, scabridulous (particularly over the veins), 1-veined, narrowing from above the broad, overlapping bases to the acute apices, unawned or awned, awns to 1 mm; lemmas 1.6-2.8 mm, lanceolate, hairy on the calluses, lower 1/2 of the midveins, and margins, hairs 0.3-0.5 mm, apices acuminate, unawned or awned, awns to 1 mm; paleas 1.6-2.9 mm, lanceolate, basal 1/2 with hairs shorter than 1. |
Caryopses | 1-1.5 mm, fusiform, brown. |
5 | mm, apices scabridulous, acuminate; anthers 0.4-1 mm, yellow. |
2n | = 40. |
Muhlenbergia sobolifera |
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Distribution |
AL; AR; CT; DC; DE; GA; IA; IL; IN; KS; KY; MA; MD; ME; MN; MO; MS; NC; NE; NH; NJ; NY; OH; OK; PA; RI; TN; TX; VA; VT; WI; WV; ON
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Discussion | Muhlenbergia sobolifera grows in dry upland forests, oak woodlands, and on rock outcrops of sandstone, chert, or limestone formations, at elevations of 0-1200 m. It is restricted to the Flora region. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 25, p. 158. |
Parent taxa | Poaceae > subfam. Chloridoideae > tribe Cynodonteae > Muhlenbergia |
Sibling taxa | |
Synonyms | M. sobolifera forma setigera |
Name authority | (Muhl. ex Willd.) Trin. |
Web links |