Carex praeceptorum Mackenzie in N. L. Britton et al. (Q199)
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Carex praeceptorum is a taxon with the rank species within the section Carex sect. Glareosae
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English |
Carex praeceptorum Mackenzie in N. L. Britton et al.
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Carex praeceptorum is a taxon with the rank species within the section Carex sect. Glareosae
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Statements
taxon/id/Carex praeceptorum Mackenzie
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Carex praeceptorum Mackenzie
Carex praeceptorum
Mackenzie
FNA Editorial Committee. 2002. Flora of North America north of Mexico. Volume 23: Cyperaceae. Oxford University Press, New York.
accepted
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CA-BC
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Klinkenberg, B. (ed.). 2010+. E-Flora BC: Electronic Atlas of the Plants of British Columbia. Lab. for Advanced Spatial Analysis, Department of Geography, University of British Columbia, Vancouver, B.C. http://www.eflora.bc.ca http://www.eflora.bc.ca/
CA-BC
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US-CA
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US-CO
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US-ID
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US-MT
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US-NV
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US-OR
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US-UT
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US-WA
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US-WY
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2300–3500 m
2,300 meter
3,500 meter
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Plants loosely or densely cespitose, in small clumps;
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Culms usually erect, slender, 10–20 (–30) cm.
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Leaves: sheaths pale-brown abaxially, inner band thin, hyaline, sometimes red tinged, concave at summit;
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ligules as long as wide;
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blades pale to gray-green, flat, 5–15 cm × 1.5–2.5 mm, shorter than culms, thin.
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Inflorescences 1–1.5 (–2) cm × 5–10 mm;
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proximal bracts bristlelike, prolonged, distal bracts scalelike.
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Spikes 3–5, gynecandrous, approximate, sessile, containing 8–15 (–20) perigynia;
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terminal spike staminate for less than 1/2 of length, shortly clavate, oblong-ovoid, 4–7 × 3–5 mm.
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Pistillate scales light chestnut-brown with lighter center and hyaline margins, ovate, subequal to perigynia, apex obtuse.
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Perigynia appressed-ascending, pale-brown, often darker brown in age, finely several-veined, elliptic-ovate, 1.5–2 × 1 mm, widest near middle, membranous;
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beak short, entire or slightly serrulate.
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Achenes pale-brown, broadly obovate, 1.25 × 0.8–1 mm, dull to slightly glossy.
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