Difference between revisions of "Carex sect. Chlorostachyae"
Trudy Imp. S.-Peterburgsk. Bot. Sada 18: 283. 1901.
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{| class="wikitable fna-keytable" | {| class="wikitable fna-keytable" | ||
| − | |-id=key-0-1 | + | |- id="key-0-1" |
|1 | |1 | ||
|Leaf blades not more than 1 mm wide, channeled; perigynia distinctly veined on faces; terminal spike androgynous or staminate. | |Leaf blades not more than 1 mm wide, channeled; perigynia distinctly veined on faces; terminal spike androgynous or staminate. | ||
|[[Carex williamsii|Carex williamsii]] | |[[Carex williamsii|Carex williamsii]] | ||
| − | |-id=key-0-1 | + | |- id="key-0-1" |
|1 | |1 | ||
|Leaf blades (0.75–)1–4 mm wide, flat or, rarely, folded; perygynia with marginal veins, otherwise veinless on faces; terminal spike staminate or gynecandrous. | |Leaf blades (0.75–)1–4 mm wide, flat or, rarely, folded; perygynia with marginal veins, otherwise veinless on faces; terminal spike staminate or gynecandrous. | ||
|[[#key-0-2| > 2]] | |[[#key-0-2| > 2]] | ||
| − | |-id=key-0-2 | + | |- id="key-0-2" |
|2 | |2 | ||
|Terminal spike usually staminate; lateral spikes 2–4. | |Terminal spike usually staminate; lateral spikes 2–4. | ||
|[[Carex capillaris|Carex capillaris]] | |[[Carex capillaris|Carex capillaris]] | ||
| − | |-id=key-0-2 | + | |- id="key-0-2" |
|2 | |2 | ||
|Terminal spike usually gynecandrous; lateral spikes usually 4–10. | |Terminal spike usually gynecandrous; lateral spikes usually 4–10. | ||
| − | |[[Carex | + | |[[Carex krauseorum]] |
|} | |} | ||
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|publication year=1901 | |publication year=1901 | ||
|special status= | |special status= | ||
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V23/V23_871.xml |
|genus=Carex | |genus=Carex | ||
|section=Carex sect. Chlorostachyae | |section=Carex sect. Chlorostachyae | ||
}}<!-- | }}<!-- | ||
| − | -->[[Category:Treatment]][[Category:Carex]] | + | --> |
| + | [[Category:Treatment]] | ||
| + | [[Category:Carex]] | ||
Latest revision as of 13:37, 10 September 2024
Plants cespitose, short-rhizomatous. Culms brown at base. Leaves: basal sheaths ± fibrous; sheath fronts membranous; blades V-shaped in cross section when young, or filiform or channeled, widest leaves 1–4 mm, glabrous. Inflorescences racemose, with 3–6 spikes; proximal nonbasal bracts leaflike, often short, long-sheathing, sheath more than 4 mm, longer than diameter of stem; lateral spikes pistillate, spreading or pendent, pedunculate, peduncles longer than spikes (spikes erect or on short peduncles in artic and high mountain plants), prophyllate; terminal spike staminate, gynecandrous, or androgynous. Proximal pistillate scales with apex obtuse to acute. Perigynia ascending, not speckled red-brown, veinless except for 2, strong, marginal veins or weakly 2–10-veined, stipitate, lanceolate to narrowly ovate, obtusely trigonous in cross section, base rounded, apex contracted or tapering to beak, glabrous; beak 0.3–1 mm, margins entire or serrulate, orifice entire or subentire. Stigmas 3. Achenes trigonous, almost as large as perigynia, glabrous; style deciduous.
Distribution
Cool temperate, alpine, and arctic regions of the Northern Hemisphere.
Discussion
Species ca. 8 (3 in the flora).
Selected References
Lower Taxa
Key
| 1 | Leaf blades not more than 1 mm wide, channeled; perigynia distinctly veined on faces; terminal spike androgynous or staminate. | Carex williamsii |
| 1 | Leaf blades (0.75–)1–4 mm wide, flat or, rarely, folded; perygynia with marginal veins, otherwise veinless on faces; terminal spike staminate or gynecandrous. | > 2 |
| 2 | Terminal spike usually staminate; lateral spikes 2–4. | Carex capillaris |
| 2 | Terminal spike usually gynecandrous; lateral spikes usually 4–10. | Carex krauseorum |