Log In New Account Sitemap
  • Home
  • Specimen Search
    • Search Collections
    • Map Search
    • Exsiccati Search
  • Images
    • Image Browser
    • Search Images
  • Flora Projects
    • Arizona
    • New Mexico
    • Colorado Plateau
    • Plant Atlas of Arizona (PAPAZ)
    • Sonoran Desert
    • Teaching Checklists
  • Agency Floras
    • NPS - Intermountain
    • USFWS - Region 2
    • BLM Flora
    • Coronado NF
    • Tonto NF
  • Dynamic Floras
    • Dynamic Checklist
    • Dynamic Key
  • Additional Websites
    • New Mexico Flores
    • Plant Atlas Project of Arizona (PAPAZ)
    • Southwest Colorado Wildflowers
    • Vascular Plants of the Gila Wilderness
    • Consortium of Midwest Herbaria
    • Consortium of Southern Rocky Mountain Herbaria
    • Intermountain Region Herbaria Network (IRHN)
    • Mid-Atlantic Herbaria
    • North American Network of Small Herbaria (NANSH)
    • Northern Great Plains Herbaria
    • Red de Herbarios del Noroeste de México (northern Mexico)
    • SERNEC - Southeastern USA
    • Texas Oklahoma Regional Consortium of Herbaria (TORCH)
  • Resources
    • Symbiota Docs
    • Video Tutorials
    • Collections in SEINet
    • Joining a Portal
Juncus castaneus Sm.  
Family: Juncaceae
Chestnut Rush
[Juncus castaneus var. castaneus Sm., moreJuncus castaneus var. pallidus Buchenau]
Juncus castaneus image
  • FNA
  • Resources
Ralph E. Brooks*;Steven E. Clemants*;  in Flora of North America (vol. 22)
Herbs, perennial, strongly rhizomatous, 1--4 dm. Culms solitary, 1--2 mm diam. Cataphylls 1--2. Leaves partially cauline, 3--5, auricles absent distally, rounded proximally; blade channeled, to 20 cm, reduced distally. Inflorescences glomerules, 1--3(--5), each with 2--10 flowers; peduncles 0.4--1.5 cm; primary bracts somewhat inflated, usually surpassing inflorescence. Flowers: bracteoles absent; tepals brown or occasionally paler, lanceolate, 4.5--6.6 mm, apex acute to obtuse; inner series slightly shorter; stamens 6, filaments 2.5--3.5 mm, anthers 0.6--1.3 mm; style 1--1.3 mm. Capsules chestnut brown, 3-locular, narrowly oblong, 6.5--8.5 x 1.8--2.3 mm. Seeds pale yellow, fusiform, body 0.6--0.7 mm, tails 0.8--1.1 mm. 2n = 60, 90, 120. Flowering and fruiting late spring--summer. Tundra, subalpine and alpine bogs and meadows, and along streams in gravelly or clayey soils; 10--3700 m; Greenland; Alta., B.C., Man., Nfld. and Labr. (Labr.), N.W.T., Nunavut, Ont., Que., Sask., Yukon; Alaska, Colo., Mont., Nev., N.Mex., Utah, Wyo.; Europe; Asia. In southern Alaska some plants with several many-flowered heads and capsules about double the length of the perianth have been referred to the Asian Juncus castaneus subsp. leucochlamys. The distinction, however, seems dubious without further investigation.

Juncus castaneus
Open Interactive Map
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Juncus castaneus image
Click to Display
100 Initial Images
- - - - -
View All Images
The National Science Foundation
Development supported by National Science Foundation Grants (DBI 9983132, BRC 0237418, DBI 0743827, DBI 0847966)
Powered by Symbiota