Common Name:
PANIC GRASS
Synonym:
Panicum lindheimeri
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Coefficient of Conservatism:
8
Coefficient of Wetness:
-5
Wetness Index:
OBL
Physiognomy:
Nt P-Grass
Panicum lindheimeri of Michigan Flora.
Moist sandy to peaty ground, especially on sandy, gravelly, calcareous shores and marshy, marly flats.
Being essentially glabrous, this is often most difficult to separate from Dichanthelium spretum but, aside from the habitat differences, even the most robust individuals are shorter and stouter, only up to ca. 65 cm tall, with panicles only up to ca. 7.5 cm long and typically 1–1.5 (–2) times as long as wide when fully expanded.
Some of the southernmost collections referred here to D. lindheimeri (e.g., some from Berrien, Monroe, Oakland, Washtenaw, and Wayne Cos.) look somewhat different from the characteristic stiff, glabrate, usually reddish, plants of northern often marly shore meadows along Lakes Michigan and Huron; but because they are essentially glabrous, they are included here. Perhaps these southern specimens include an admixture of something else. Sometimes subsumed into D. acuminatum as subsp. lindheimeri (Nash) Freckmann & Lelong (Freckmann & Lelong 2002).