Carex vulpinoidea
Brown fox sedge, Brown Fox Sedge
(c) Zihao Wang, some rights reserved (CC BY), uploaded by Zihao Wang · licence
Family: Cyperaceae · Type: Grass · Native
Carex vulpinoidea (Brown fox sedge) is a native California grass in the Cyperaceae family, recognized by non-native with distinctive large dense inflorescence.
Brown fox sedge is a native perennial sedge found in southeastern Klamath Ranges, Cascade Range, northern Sierra Nevada Foothills, Central Valley, and Central Coast in wet areas, marshes, shores, and floodplains at elevations below 1,200 meters. Flowering in spring and early summer, this sedge produces dull yellow-green to pale gray-brown spikelets in dense clusters 5 to 10 centimeters long. Growing in dense tufts with flowering stems shorter than its leaves, it develops blade-like leaves 2 to 5 millimeters wide with distinctively cross-wrinkled leaf sheaths. Its leaves feature minute reddish dots and develop spikelets with thin bracts, often with multiple spikelets at each lower node. The fruit is small, approximately 1.2 to 1.6 millimeters long, with a pale yellow-green to gray-brown coloration and a short beak 0.7 to 1.8 millimeters in length.
Identification and appearance
Key characters: 105 sympatric species; non-native with distinctive large dense inflorescence
Habitat and range
Habitat: Wet areas, marshes, shores, floodplains
Elevation: < 1200 m
California counties: Shasta, Butte, Tehama, Trinity, San Francisco, Siskiyou, San Joaquin, Mono, Ventura, Inyo, Colusa, Mariposa
Outside California: eastern Oregon to British Columbia, Newfoundland, Florida, Mexico, alien in New Zealand, Europe
How to tell it apart
vs Juncus: Carex stems are triangular when rolled; Juncus stems are round and often hollow with partitions inside.; vs Cyperus: Carex has seeds in individual flasks; Cyperus has umbrella-like flower clusters with flattened ribbon-like spikes.; vs Plantago: Carex has triangular stems and brown/green spikelets; Plantago has round flower stalks and white/brown spike flowers.; vs Eleocharis: Carex has leaves along the stem; Eleocharis is nearly leafless with just one spikelet per stem.; vs Schoenoplectus: Carex has leafy stems and flask-enclosed seeds; Schoenoplectus has leafless round stems with exposed seeds.
Frequently asked questions
Is Carex vulpinoidea native to California?
Yes. Carex vulpinoidea is native to California (recorded as native).
Where in California does Carex vulpinoidea grow?
Carex vulpinoidea occurs in Shasta, Butte, Tehama, Trinity, San Francisco, Siskiyou, San Joaquin, Mono and other counties, at elevations of < 1200 m.
What plant family does Carex vulpinoidea belong to?
Carex vulpinoidea is in the Cyperaceae family, genus Carex.
What habitat does Carex vulpinoidea grow in?
Carex vulpinoidea grows in Wet areas, marshes, shores, floodplains.
Related species
Other California species in the same genus, family, or bioregion.
Sources: Jepson eFlora · Index of California Plant Names · CalPhotos
Last updated 2026-10-07
Data from The California Species Project — 14,000+ California species with verified data from CNPS, CDFW, USFWS, Cal-IPC, and more.