About Carex deweyana Schwein.
Carex deweyana Schwein. grows in dense tufts. Relatively wide leaves, which measure 0.6 to 4.2 mm across, grow on shorter stalks near the plant's base. Culms that hold the flowering spikes are longer, reaching up to 100 cm in length. These stalks bend outwards as the fruit matures. This species is native to central and northern North America. Within the southern portion of its North American range, populations are only found in mountainous areas. It has been introduced to Great Britain, where it occurs infrequently as a wool alien. Carex deweyana grows in association with trees, in habitats ranging from dry to moist sites. Golden-crowned sparrows, Fox sparrows, Lincoln's sparrows, Song sparrows, and Dark-eyed juncos have been observed living in association with this species. It also acts as a host for the smut fungus Anthracoidea deweyanae, which belongs to the family Anthracoideaceae. This sedge has been successfully grown in cultivation from wild-collected seed, and it is recommended for landscaping use.