Flora of North America species comparison

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Carex filifolia var. filifolia
Photo is of parent taxon

thread-leaf sedge
Culms

round to sharply trigonous, 8–35 cm.
Leaf

blades 7–25 cm, 0.3–0.7 mm wide near base.
Spike

(10–)12–26(–30) × 3–7 mm, staminate portion 4–14 mm.
Perigynia

obovate, (2.8–)3–4.8 × 1.4–2 mm;

beak 0.2–0.8 mm.
Achenes

2.2–3(–3.3) × 1.3–1.9 mm.
Longest

pistillate scales 2.9–4.5(–6.5) × 1.9–4 mm excluding awns, usually equaling or longer than perigynia.

Carex filifolia var. filifolia
Phenology Fruiting Apr–Jun.
Habitat Dry to dryish areas, stable silt-loam or gravel, on slopes, headlands, eroded areas, swales
Elevation 100–3100 m (300–10200 ft)
Distribution
from FNA
AK; AZ; CA; CO; ID; KS; MN; MT; ND; NE; NM; NV; OR; SD; UT; WA; WY; AB; BC; MB; NT; SK; YT
Source FNA vol. 23, p. 568.
Parent taxa Cyperaceae > Carex > sect. Filifoliae > Carex filifolia
Sibling taxa
C. filifolia var. erostrata
Name authority unknown
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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(If the plant you're looking for doesn't show up in the auto-complete list, that means it either isn't described in Flora of North America yet, or it's listed under a synonym. And please note that Flora of North America is still missing several plant families, including Apiaceae, Boraginaceae, and Polemoniaceae.)

Choose a data source: Flora of North America, OregonFlora, UW Burke Herbarium

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