Difference between revisions of "Carex praeceptorum"
in N. L. Britton et al., N. Amer. Fl. 18: 95. 1931.
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|name=Carex canescens var. dubia | |name=Carex canescens var. dubia | ||
|authority=L. H. Bailey | |authority=L. H. Bailey | ||
| + | |rank=variety | ||
}} {{Treatment/ID/Synonym | }} {{Treatment/ID/Synonym | ||
|name=Carex heleonastes var. dubia | |name=Carex heleonastes var. dubia | ||
|authority=(L. H. Bailey) B. Boivin | |authority=(L. H. Bailey) B. Boivin | ||
| + | |rank=variety | ||
}} | }} | ||
|hierarchy=Cyperaceae;Carex;Carex sect. Glareosae;Carex praeceptorum | |hierarchy=Cyperaceae;Carex;Carex sect. Glareosae;Carex praeceptorum | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Carex praeceptorum | name=Carex praeceptorum | ||
| − | |||
|authority=Mackenzie in N. L. Britton et al. | |authority=Mackenzie in N. L. Britton et al. | ||
|rank=species | |rank=species | ||
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|publication year=1931 | |publication year=1931 | ||
|special status= | |special status= | ||
| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V23/V23_563.xml |
|genus=Carex | |genus=Carex | ||
|section=Carex sect. Glareosae | |section=Carex sect. Glareosae | ||
Revision as of 20:09, 16 December 2019
Plants loosely or densely cespitose, in small clumps; rhizomes short. Culms usually erect, slender, 10–20(–30) cm. Leaves: sheaths pale brown abaxially, inner band thin, hyaline, sometimes red tinged, concave at summit; ligules as long as wide; blades pale to gray-green, flat, 5–15 cm × 1.5–2.5 mm, shorter than culms, thin. Inflorescences 1–1.5(–2) cm × 5–10 mm; proximal bracts bristlelike, prolonged, distal bracts scalelike. Spikes 3–5, gynecandrous, approximate, sessile, containing 8–15(–20) perigynia; terminal spike staminate for less than 1/2 of length, shortly clavate, oblong-ovoid, 4–7 × 3–5 mm. Pistillate scales light chestnut-brown with lighter center and hyaline margins, ovate, subequal to perigynia, apex obtuse. Perigynia appressed-ascending, pale brown, often darker brown in age, finely several-veined, elliptic-ovate, 1.5–2 × 1 mm, widest near middle, membranous; beak short, entire or slightly serrulate. Achenes pale brown, broadly obovate, 1.25 × 0.8–1 mm, dull to slightly glossy.
Phenology: Fruiting Jul–Sep.
Habitat: Boggy places, wet soil around montane ponds and lakes
Elevation: 2300–3500 m
Distribution
B.C., Calif., Colo., Idaho, Mont., Nev., Oreg., Utah, Wash., Wyo.
Discussion
Selected References
None.