Flora of North America species comparison

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Carex aquatilis var. minor
Photo is of parent taxon
Culms

35–100 cm, angles scabrous.
Leaves

basal sheaths leafless, usually red-brown;

blades amphistomic, 5-8 mm wide, papillose on both surfaces.
Inflorescences

peduncle of proximal spike not more than 4 cm;

proximal bract longer than inflorescence, 4–8 mm wide.
Spikes

erect;

proximal 3–4 spikes pistillate, 2–4 cm × 4–7 mm, base cuneate or attenuate;

terminal 1–3 spikes staminate.
Perigynia

obovoid, 2–3 × 1.2–2 mm, apex rounded;

beak pale brown, not more than 0.2 mm, thickened.
Pistillate

scales pale red-brown with narrow pale midvein.
2n

= 76.

Carex aquatilis var. minor
Phenology Fruiting Jul–Aug.
Habitat Wet tundra
Elevation 0–600 m (0–2000 ft)
Distribution
from FNA
AK; NT; NU; QC; YT; Greenland
[BONAP county map]
Discussion

Although extensively intergrading along the Arctic coast, Carex aquatilis var. minor and var. aquatilis appear to be distinct; C. aquatilis var. minor has been reported to maintain its distinctive characteristics in cultivation (J. Cayouette and P. Morisset 1986b). It is reported to hybridize with C. bigelowii (= C. ×nearctica M. Raymond).

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 23, p. 398.
Parent taxa Cyperaceae > Carex > sect. Phacocystis > Carex aquatilis
Sibling taxa
C. aquatilis var. aquatilis, C. aquatilis var. dives, C. aquatilis var. substricta
Synonyms C. stans
Name authority Boott: Ill. Carex, 163. (1867)
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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