Perennial, strongly tufted herb in large, dense clusters from compact rhizomes; stems smooth or finely lined with 30 to 60 longitudinal ridges, 30-120 cm tall.
Reduced to short sheaths at the base of the stem.
Inflorescence with numerous flowers and branches, 3-12 cm long, appearing as if on the side of the stem; perianth segments green or light brown, 3-6 mm long, pointed, subequal; stamens 3; anthers about as long as the filaments; involucral bract 5-25 cm long, cylindrical, resembling a continuation of the stem, smooth or finely lined with 30 to 60 longitudinal ridges.
Capsules, egg-shaped, rounded on the tops, slightly shorter than the perianth segments; seeds ellipsoid, 0.5 mm long, lacking tail-like appendages.
Variable species with several varieties recognized in our area
1. Perianth segments greenish with little or no brownish borders, stiff when dry...................... var. pacificus Fern. & Wieg.
1. Perianth segments deep brown with green midribs, soft when dry.
2. Uppermost sheaths closed, leathery, lustrous, and chestnut brown throughout........................ var. gracilis Hook.
2. Uppermost sheaths looser, membranaceous, dull greenish-brown above............................ var. brunneus Engelm.
Present from Summer to Fall
Source: The USDA
||Value / Class
Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
of field plots
species was recorded in:
BEC Zone Class
All BEC Zones (# of stations/zone) species was recorded in
|CDF(7), CWH(79), ESSF(1), ICH(2), SBS(2)|
Source: Klinkenberg 2013
Synonyms and Alternate Names:
Juncus effusus var. subconglomeratus