Difference between revisions of "Kobresia sibirica"

(Turczaninow ex Ledebour) Boeckeler

Linnaea 39: 7. 1875.

Basionym: Elyna sibirica Turczaninow ex Ledebour
Synonyms: Kobresia hyperborea A. E. Porsild Kobresia macrocarpa Clokey ex Mackenzie
Treatment appears in FNA Volume 23. Treatment on page 253. Mentioned on page 252.
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|name=Kobresia hyperborea
 
|name=Kobresia hyperborea
 
|authority=A. E. Porsild
 
|authority=A. E. Porsild
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}} {{Treatment/ID/Synonym
 
|name=Kobresia macrocarpa
 
|name=Kobresia macrocarpa
 
|authority=Clokey ex Mackenzie
 
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|elevation=0–3600 m
 
|elevation=0–3600 m
 
|distribution=N.W.T.;Nunavut;Yukon;Alaska;Colo.;Wyo.;c;n Asia.
 
|distribution=N.W.T.;Nunavut;Yukon;Alaska;Colo.;Wyo.;c;n Asia.
|discussion=<p>Kobresia sibirica, a local and variable species, is not yet fully understood. Some authors consider K. hyperborea and K. macrocarpa to be distinct endemic North American species; other authors include those and K. sibirica in the southwest Asian species K. schoenoides (C. A. Meyer) Steudel. In the Asian plants, the androgynous spikelets are reported as having 3 staminate flowers and no sterile scales.</p>
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|discussion=<p><i>Kobresia sibirica</i>, a local and variable species, is not yet fully understood. Some authors consider K. hyperborea and K. macrocarpa to be distinct endemic North American species; other authors include those and <i>K. sibirica</i> in the southwest Asian species K. schoenoides (C. A. Meyer) Steudel. In the Asian plants, the androgynous spikelets are reported as having 3 staminate flowers and no sterile scales.</p>
 
|tables=
 
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|publication year=1875
 
|publication year=1875
 
|special status=
 
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V23/V23_456.xml
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|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V23/V23_456.xml
 
|genus=Kobresia
 
|genus=Kobresia
 
|species=Kobresia sibirica
 
|species=Kobresia sibirica

Revision as of 17:08, 18 September 2019

Culms 5–40 cm. Leaves: basal sheaths somewhat glossy, bladeless; blades filiform, 2–15 cm × 0.25–0.5 mm. Inflorescences simple, 10–20 × 4–8 mm; proximal spikelets usually androgynous with 1–2 staminate flowers, 1 pistillate flower, and 1–3 scales; distal spikelets staminate, 1-flowered. Scales brown, obovate-circular, 3.5–5.5 mm, midvein distinct only near base, margins hyaline, apex obtuse. Anthers 2–3 mm. Perigynia brown, finely veined, 3.5–5.5 mm, margins connate near base. Achenes 2.6–4 mm.


Phenology: Fruiting summer.
Habitat: Dry to mesic tundra
Elevation: 0–3600 m

Distribution

V23 456-distribution-map.jpg

N.W.T., Nunavut, Yukon, Alaska, Colo., Wyo., c, n Asia.

Discussion

Kobresia sibirica, a local and variable species, is not yet fully understood. Some authors consider K. hyperborea and K. macrocarpa to be distinct endemic North American species; other authors include those and K. sibirica in the southwest Asian species K. schoenoides (C. A. Meyer) Steudel. In the Asian plants, the androgynous spikelets are reported as having 3 staminate flowers and no sterile scales.

Selected References

None.

Lower Taxa

None.