CAREX LASIOCARPA Ehrh. var. AMERICANA Fernald Slender Sedge FAMILY: Cyperaceae.

late May-July. SIMILAR SPECIES: C. lasiocarpa is very similar in general appearance to the widespread C. lanuginosa. The best distinguishing character is the leaves which are flat and linear in C. lanuginosa and involute-filiform in C. lasiocarpa. C. lasiocarpa usually is found in much wetter sites than C. lanuginosa. C. trichocarpa superficially resembles C. lasiocarpa but can be distinguished by the evident nervation and long teeth of its perigynia, as well as its flat leaves. When sterile, as is frequently the case, it is difficult to separate C. lasiocarpa from C. oligosperma, a species with involute leaves that grows in similar habitats. These two species can be separated by technical characters of size and shape of perigynia