Carex tenera Dewey
Annotated by Jamie D. Fennemen, 2015.

British Columbia: [locality and coordinates withheld; status in British Columbia: S2S3 (Rare, Blue List; BCCDC)],
Base of slope at high water mark of back channel. With gynecandrous, androgynous and possibly staminate spike (suggest C. arenaria BUT not obviously or long-rhizomatous AND its winged perigynia and caespitose/short rhizomatous habit suggest OVALES but ovales has gynacandrous spike; caespitose; culms to 18 cm; terminal spike: staminate on some, gynecandrous on other; sheaths transparent, concave, v-shaped; ligules 1.8-2 mm, rounded; widest leaft 2.5 mm; infl: length: 1.6 cm, 1.8, 1.1, 1.2; # spike in infl: 6, 5, 5, 3, ascending; infl. Sex: some 1. all gynecandrous, 2. gynecandrous and staminate, 3. appear all staminate (1 or 2) (in small specimen); terminal spike - gynecandrous or staminate; middle spike - gynecandrous; proximal spike: gynecandrous or androgenous; pistillate scales - yellow-brown with green and white (central) mid vein slightly shorter and narrower than perigynia to approx. equal approx. 2.5 mm long; perigynia - 3 mm x 1.5 mm, ovate, with shoulders and distinct beak, beak 1 mm; winged margins to w/l 0.2 mm of apex; serrulate-hirsute margin from upper 1/3 of body to apex (poorly defined teeth but cleft present); stigmas 2; wings at body margin 0.2-0.3 mm; beak to top of achene - 1.5 mm on immature perigynia; achene to base of (0.1 mm) stipe = 0.4 mm; proximal bract > spike but < inflorescence; bristle forming distal portion; anther = 1.5 mm.

Phil Henderson | D. Albright 20150623-1, 2015 Jun 23
UBC, Accession: V247798