Difference between revisions of "Carex mertensii"
Mém. Acad. Imp. Sci. St. Pétersbourg Divers Savans 2: 168. 1832.
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| + | |special_status={{Treatment/ID/Special_status | ||
| + | |code=F | ||
| + | |label=Illustrated | ||
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|name=Carex columbiana | |name=Carex columbiana | ||
|authority=Dewey | |authority=Dewey | ||
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|hierarchy=Cyperaceae;Carex;Carex sect. Racemosae;Carex mertensii | |hierarchy=Cyperaceae;Carex;Carex sect. Racemosae;Carex mertensii | ||
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name=Carex mertensii | name=Carex mertensii | ||
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|authority=J. D. Prescott ex Bongard | |authority=J. D. Prescott ex Bongard | ||
|rank=species | |rank=species | ||
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|publication title=Mém. Acad. Imp. Sci. St. Pétersbourg Divers Savans | |publication title=Mém. Acad. Imp. Sci. St. Pétersbourg Divers Savans | ||
|publication year=1832 | |publication year=1832 | ||
| − | |special status= | + | |special status=Illustrated |
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V23/V23_730.xml |
|genus=Carex | |genus=Carex | ||
|section=Carex sect. Racemosae | |section=Carex sect. Racemosae | ||
Latest revision as of 20:42, 5 November 2020
Plants cespitose. Culms 30–80 cm, distally scabrous. Leaves basal and cauline, 4–8 mm wide; proximal leaves reduced to sheaths. Inflorescences: proximal bracts usually exceeding, occasionally shorter than, inflorescences; spikes separate, the proximal often distant, pendent, long-pendunculate, elongate, cylindric or clavate, 10–40 × 7–9 mm; lateral 4–6(–9) spikes pistillate; terminal spike gynecandrous. Pistillate scales dark brown or black to margins, ovate or lanceolate, conspicuously shorter and narrower than perigynia, midvein lighter colored than body, conspicuous, often raised, prominent, mucronate. Perigynia ascending, green becoming pale yellow or brown, faintly veined, ovate, 4–5 × 2.5–3.5 mm, apex gradually beaked, smooth; beak 0.3–0.4 mm, truncate or obscurely bidendate, smooth. Achenes filling proximal 1/2 or less of perigynia. 2n = 62.
Phenology: Fruiting Jun–Aug.
Habitat: Open forests, meadows, stream banks
Elevation: 0–2000 m
Distribution
Alta., B.C., Alaska, Calif., Idaho, Mont., Oreg., Wash., Asia.
Discussion
Carex mertensii is represented in Japan and the Russian Far East by the vicariant C. urostachys Franchet [C. mertensii J. D. Prescott var. urostachys (Franchet) Kükenthal].
Selected References
None.