familyCyperaceae
genusKobresia
speciesKobresia simpliciuscula

Kobresia simpliciuscula

(Wahlenberg) Mackenzie

Bull. Torrey Bot. Club 50: 349. 1923.

Peter W. Ball
Common names: Kobrésie simple
Illustrated
Basionym: Carex simpliciuscula Wahlenberg Kongl. Vetensk. Acad. Nya Handl. 24: 141. 1803
Treatment appears in FNA Volume 23. Treatment on page 252. Mentioned on page 4, 253, 315.
Please click on the illustration for a higher resolution version.
Illustrator: Amanda Humphrey

Copyright: Flora of North America Association

Culms 5–35 cm. Leaves: basal sheaths dull, base of blade usually persistent; blades ± channeled, 2–20 cm × 0.2–1.5 (–2) mm. Inflorescences usually compound, (8–) 10–35 × (2–) 3–8 mm; bracts brown, margins hyaline, ovate to oblongovate; proximal spikelets 1-flowered and pistillate or 2-flowered and androgynous; terminal and distal spikelets 1-flowered, staminate. Scales brown, ovate, 2–3 mm, margins hyaline, midvein distinct almost to tip, apex obtuse to subacute. Anthers 1–2 mm. Perigynia brown, 2.5–3.2 mm, margins free to base, smooth. Achenes 2–3 mm. 2n = 70–75.


Phenology: Fruiting summer.
Habitat: Fens, marshes, mesic to wet tundra, gravels, rocky slopes, usually on calcareous substrates
Elevation: 0–3500 m

Distribution

V23 455-distribution-map.jpg

Greenland, Alta., B.C., Man., Nfld. and Labr., N.W.T., Nunavut, Ont., Que., Yukon, Alaska, Colo., Idaho, Oreg., Utah, Wyo., Eurasia

Discussion

Selected References

None.

Lower Taxa

None.

"shortened" is not a number.

... more about "Kobresia simpliciuscula"
RDF feed
2n chromosome quantity
70 +  and 75 +
Achene shape
trigonous +
Achene some measurement
2mm;3mm +
Anther fixation
basifixed +
Anther some measurement
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Apex shape
obtuse;subacute +
Author
Peter W. Ball +
Authority
(Wahlenberg) Mackenzie +
Basal sheath duration
persistent +
Basal sheath reflectance
dull +
Base duration
persistent +
Basionyms
Carex simpliciuscula +
Blade atypical width
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Blade length
2 cm20 mm <br />0.02 m <br /> (20 cm200 mm <br />0.2 m <br />) +
Blade presence
absent +
Blade shape
channeled +
Blade width
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
Bract architecture
glumaceous +  and foliaceous +
Bract arrangement
2-ranked +  and arranged +
Bract coloration
brown +
Bract orientation
ascending +  and appressed +
Bract quantity
1;many +
Bract shape
scale-like +
Branch atypical quantity
3 (4) +
Branch quantity
2;3 +
Bristle atypical quantity
6;30 +
Bristle quantity
3;6 +
Cauline leaf architecture or shape
folded +
Cauline leaf arrangement
parallel +  and divergent +
Cauline leaf arrangement or course or shape
linear +
Cauline leaf orientation
Ascending (?) +
Cauline leaf prominence or shape
flat +
Cauline leaf shape
terete +, rolled +  and plicate +
Common name
Kobrésie simple +
Culm shape
rounded-trigonous +
Culm some measurement
5 cm50 mm <br />0.05 m <br /> (35 cm350 mm <br />0.35 m <br />) +
Distal scale architecture
empty +
Distribution
Greenland +, Alta. +, B.C. +, Man. +, Nfld. and Labr. +, N.W.T. +, Nunavut +, Ont. +, Que. +, Yukon +, Alaska +, Colo. +, Idaho +, Oreg. +, Utah +, Wyo. +  and Eurasia +
Elevation
0–3500 m +
Embryo position
basal +
Endosperm quantity
abundant +
Flower architecture
open +, staminate +  and pistillate +
Flower position
hypogynous +  and subtending +
Flower quantity
1 +  and 3 +
Flower reproduction
unisexual +
Fruits achene shape
biconvex +  and trigonous +
Habitat
Fens, marshes, mesic to wet tundra, gravels, rocky slopes, usually on calcareous substrates +
Illustration
Present +
Illustration copyright
Flora of North America Association +
Illustrator
Amanda Humphrey +
Inflorescence architecture
compound +
Inflorescence arrangement
paniculate +
Inflorescence atypical length
0.8 cm8 mm <br />0.008 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Inflorescence atypical width
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Inflorescence length
1 cm10 mm <br />0.01 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
Inflorescence position or structure subtype
terminal +
Inflorescence width
0.3 cm3 mm <br />0.003 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Inflorescences panicle architecture
pseudoumbel +
Inflorescences panicle development
modified +
Leaf arrangement
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
Leaf position
cauline +  and basal +
Ligule presence
absent +
Locule quantity
1 +
Margin architecture or pubescence or relief
smooth +
Margin coloration
hyaline +
Margin fusion
free +
Margin shape
ovate +
Midvein fusion
distinct +
Number of lower taxa
0 +
Perianth life cycle
falling +
Perianth presence
absent +
Perianth quantity
with (1-)3-6(-30) bristles and/or scales +
Pericarp width
thin +
Perigynium coloration
brown +
Perigynium some measurement
0.25 cm2.5 mm <br />0.0025 m <br /> (0.32 cm3.2 mm <br />0.0032 m <br />) +
Phenology
Fruiting summer. +
Pistil architecture
2-3(-4)-carpellate +
Pistil fusion
fused +
Pistil quantity
1 +
Prophyll architecture
pistillate +
Prophyll atypical quantity
0 (3) +
Prophyll position
subtending +
Prophyll quantity
3 (?) +  and 1 (?) +
Proximal bract shape
scale-like;leaflike +
Proximal spikelet architecture
2-flowered +, pistillate +  and 1-flowered +
Proximal spikelet reproduction
androgynous +
Publication title
Bull. Torrey Bot. Club +
Publication year
1923 +
Reference
None +
Root derivation
adventitious +
Root texture
fibrous +
Scale architecture
empty +
Scale atypical quantity
6 (30) +
Scale coloration
brown +
Scale position
basal +  and proximal +
Scale quantity
additional +
Scale reproduction
sterile +
Scale shape
ovate +
Scale some measurement
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Seed quantity
1 +
Sheath shape
cylindric +
Source xml
https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V23/V23 455.xml +
Special status
Illustrated +
Spike quantity
single +
Spikelet quantity
10 +  and 30 +
Stamen atypical quantity
1 (3) +
Stamen fusion
distinct +
Stamen quantity
3 +
Stem architecture
septate +, hollow +  and solid +
Stem shape
compressed +, terete +  and trigonous +
Stigma relief
papillate +
Style architecture or shape
undivided +
Style arrangement or course or shape
linear +
Style shape
3-fid +
Taxon family
Cyperaceae +
Taxon name
Kobresia simpliciuscula +
Taxon parent
Kobresia +
Taxon rank
species +
Terminal and distal spikelet architecture
staminate +  and 1-flowered +
Testa fusion
free +
Testa width
thin +
Volume
Volume 23 +
Whole organism architecture
short-rhizomatous +
Whole organism duration
perennial +
Whole organism growth form
herb +  and cespitose +
X chromosome quantity
5;100 +