''Carex debilis'', also known as white-edge sedge, Rudge's white-edge sedge, and flexuous white-edge sedge, is a species of

flowering plant Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (). The term angiosperm is derived from the Ancient Greek, Greek words (; 'container, vessel') and (; 'seed'), meaning that the seeds are enclosed with ...

in the sedge family,

Cyperaceae The Cyperaceae () are a family of graminoid (grass-like), monocotyledonous flowering plants known as wikt:sedge, sedges. The family (biology), family is large; botanists have species description, described some 5,500 known species in about 90 ...

. It is native to the eastern North America, where it is found in eastern Canada, the northeastern and midwestern United States, and southward in the

Appalachian Mountains The Appalachian Mountains, often called the Appalachians, are a mountain range in eastern to northeastern North America. The term "Appalachian" refers to several different regions associated with the mountain range, and its surrounding terrain ...

. ''Carex debilis'' is a clumping perennial. The variety ''Carex debilis'' var. ''rudgei'' has smaller

perigynia In botany, a perigynium (plural: perigynia), also referred to as a utricle, typically refers to a sac that surrounds the achene of plants in the genus ''Carex'' (Cyperaceae). The perigynium is a modified prophyll, also known as a glume, which is t ...

that are broadest near the middle. ''Carex debilis'' var. ''rudgei''
Flora of North America

Distribution and habitat

The natural habitat of ''Carex debilis'' is upland forests, rock outcrops, and

Appalachian balds In the Appalachian Mountains of the eastern United States, balds are mountain summits or crests covered primarily by thick vegetation of native grasses or shrubs occurring in areas where heavy forest growth would be expected. Balds are found prim ...

. It is typically found in areas with acidic soil.

References

{{Taxonbar, from=Q15568294, from2=Q60497417, from3=Q24692103 debilis Plants described in 1803 Flora of Northern America