''Carex muehlenbergii'' is a species of flowering plant, it is a type of

sedge The Cyperaceae are a family of graminoid (grass-like), monocotyledonous flowering plants known as sedges. The family is large, with some 5,500 known species described in about 90 genera, the largest being the "true sedges" genus '' Carex'' ...

. It is a grass-like plant in the family Cyperaceae. Its common names include sand sedge, Muhlenberg's sedge.

Description

''Carex muehlenbergii'' is a perennial monocot growing 20–90 cm tall. Plants form tufts of foliage arising from a short, dark, woody rhizome.Robert H. Mohlenbrock.
Sedges: Carex
'. SIU Press; 21 April 2011. . p. 339–. The

Inflorescence An inflorescence is a group or cluster of flowers arranged on a Plant stem, stem that is composed of a main branch or a complicated arrangement of branches. Morphology (biology), Morphologically, it is the modified part of the shoot of sperma ...

s have 3–10 flower spikes, is green or yellow or brown in color.

Distribution and habitat

''Carex muehlenbergii'' lives in dray sandy fields, on dunes, banks, and at the edges of oak and aspen forests,
Field Manual of Michigan Flora
'. University of Michigan Press; 8 February 2012. . p. 121–. it also found in dry woods and on sand prairies.Robert H. Mohlenbrock.
Vascular Flora of Illinois: A Field Guide, Fourth Edition
'. Southern Illinois University Press; 6 December 2013. . p. 400–. It is listed as a

threatened species Threatened species are any species (including animals, plants and fungi) which are vulnerable to endangerment in the near future. Species that are threatened are sometimes characterised by the population dynamics measure of '' critical depen ...

in the US states of

Maine Maine () is a state in the New England and Northeastern regions of the United States. It borders New Hampshire to the west, the Gulf of Maine to the southeast, and the Canadian provinces of New Brunswick and Quebec to the northeast and ...

and

Vermont Vermont () is a state in the northeast New England region of the United States. Vermont is bordered by the states of Massachusetts to the south, New Hampshire to the east, and New York to the west, and the Canadian province of Quebec to ...

. There are two varieties in North America: * ''Carex muehlenbergii'' var. ''enervis'' Boott **Which is different than the other variety by having smaller carpellate scales and smaller perigynia, it also lacks veins on the adaxial side of the perigynium.Arthur Haines.
New England Wild Flower Society's Flora Novae Angliae: A Manual for the Identification of Native and Naturalized Higher Vascular Plants of New England
'. Yale University Press; 8 November 2011. . p. 142–. * ''Carex muehlenbergii'' var. ''muehlenbergii''

References

muehlenbergii {{Carex-stub