Difference between revisions of "Carex arcta"
Ill. Carex, 155, plate 497. 1867.
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|common_names=Carex dru | |common_names=Carex dru | ||
+ | |special_status={{Treatment/ID/Special_status | ||
+ | |code=F | ||
+ | |label=Illustrated | ||
+ | }}{{Treatment/ID/Special_status | ||
+ | |code=E | ||
+ | |label=Endemic | ||
+ | }} | ||
|basionyms= | |basionyms= | ||
|synonyms={{Treatment/ID/Synonym | |synonyms={{Treatment/ID/Synonym | ||
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|publication title=Ill. Carex, | |publication title=Ill. Carex, | ||
|publication year=1867 | |publication year=1867 | ||
− | |special status= | + | |special status=Illustrated;Endemic |
− | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V23/V23_567.xml |
|genus=Carex | |genus=Carex | ||
|section=Carex sect. Glareosae | |section=Carex sect. Glareosae |
Latest revision as of 21:41, 5 November 2020
Plants densely cespitose; rhizomes short. Culms erect, slender, 15–80 cm, very rough distally. Leaves: sheaths pale to gray-brown abaxially, inner band thin, hyaline, conspicuously purplish dotted, concave at summit; ligules acute, longer than wide; blades pale to gray-green, flat, 15–50 cm × 2–4 mm, shorter than to exceeding culms. Inflorescences erect, ovoid-oblong, 1.5–4 cm × 7–12 mm; proximal bracts (sometimes also 2d) bristlelike-prolonged, from short to clearly exceeding spikes, distal bracts usually scalelike. Spikes 5–15, gynecandrous, proximal often slightly separate, distal closely approximate (sometimes hardly recognizable), containing 10–20 perigynia, sessile, oblong, 5–10 × 4–6 mm. Pistillate scales hyaline with green center, often brown tinged, ovate, shorter than perigynia, apex obtuse to short-cuspidate. Perigynia spreading-ascending, greenish, often brown in age, several-veined, ovate, widest near base, 2–3(–3.5) × 1.25–1.5 mm, minutely papillose (membranous); beak abaxial suture conspicuous, 0.75–1.25 mm, margin serrulate. Achenes pale brown, ovate, 1.25–1.5 1 mm, dull to slightly glossy. 2n = 60.
Phenology: Fruiting Jun–Sep.
Habitat: Swampy (coniferous) woods and thickets, wet meadows
Elevation: 0–2000 m
Distribution
Alta., B.C., Man., N.B., Ont., Que., Yukon, Calif., Idaho, Maine, Mass., Mich., Minn., Mont., N.H., N.Y., Oreg., Vt., Wash., Wis.
Discussion
Selected References
None.