Flora of North America species comparison

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Carex scirpoidea subsp. convoluta
Photo is of parent taxon
Habit Plants cespitose; rhizomes inconspicuous.
Culms

erect, (9.2–) 19.5–35(–38) cm.
Leaves

sheaths and bases from previous year’s leaves absent;

blades narrowly V-shaped in cross section, to 23 cm × 1.8 mm, widest leaves of pistillate culm less than 1.5 mm wide.
Perigynia

ovate, 1.5–2.6 × 1–1.2 mm, less than or equal to 2.5 times long as wide, body tightly enveloping achene for entire length and width.
Achenes

1–1.5 × 0.6–0.9 mm.
Scales

ovate, 2.4 × 1.2 mm.

Carex scirpoidea subsp. convoluta
Phenology Fruiting early Jun–Sep.
Habitat Prairie pavement barrens
Elevation 200 m (700 ft)
Distribution
from FNA
MI; ON
[BONAP county map]
Discussion

Carex scirpoidea subsp. convoluta is the most geographically restricted of the subspecies and is distinguished by narrowly V-shaped leaves, especially of the flowering shoot, a strongly cespitose habit, and conspicuously more flowering shoots per plant than other subspecies.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 23, p. 551.
Parent taxa Cyperaceae > Carex > sect. Scirpinae > Carex scirpoidea
Sibling taxa
C. scirpoidea subsp. pseudoscirpoidea, C. scirpoidea subsp. scirpoidea, C. scirpoidea subsp. stenochlaena
Synonyms C. scirpoidea var. convoluta
Name authority (Kükenthal) D. A. Dunlop: Novon 7: 355. (1998)
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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