Carex muehlenbergii var. enervis |
|
---|---|
carex à utricule lisse, Muhlenberg's sedge |
|
Perigynia | veinless adaxially, 2.7–3.1 × 1.8–2.3 mm, beak 0.2–0.6(–1.0) mm. |
Pistillate | scales 2–2.5 × 1.2–1.8 mm. |
Carex muehlenbergii var. enervis |
|
Phenology | Fruiting late spring–early summer. |
Habitat | Dry grasslands, open forests, commonly on sand |
Elevation | 10–300 m (0–1000 ft) |
Distribution |
AL; AR; CT; GA; IA; IL; IN; KS; KY; LA; MA; MD; MI; MN; MO; MS; NC; NE; NH; NJ; NY; OH; OK; PA; RI; SC; TN; TX; VA; VT; WV; ON |
Discussion | The distribution and ecology of Carex muehlenbergii var. enervis are unclear due to confusion with var. muehlenbergii. Plants of var. muehlenbergii that have a veinless perigynium have often been misidentified as var. enervis, but those plants are otherwise identical to var. muehlenbergii. Carex muehlenbergii var. muehlenbergii usually occurs on basic to slightly acidic soils; var. enervis often occurs on more acidic soils. It is not clear, however, whether that correlation is consistent. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 23, p. 294. |
Parent taxa | |
Sibling taxa | |
Synonyms | C. onusta, C. plana |
Name authority | Boott: Ill. Carex, 3: 124, plate 400. (1862) |
Web links |