Carex subnigricans

Stacey

Leafl. W. Bot. 2: 167. 1939.

IllustratedEndemic
Synonyms: Carex rachillis Maguire
Treatment appears in FNA Volume 23. Treatment on page 571. Mentioned on page 570.
Revision as of 00:26, 30 July 2020 by imported>Volume Importer
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Rhizomes 1–1.5 mm thick. Culms 5–20 cm, 2–2.5 mm thick at base. Leaves: sheaths to 13 cm, fronts uniformly colorless or pale-brown; blades with inconspicuous median groove, not flattened, terete in cross-section, 5–12 cm × 0.4–10 mm, lacking conspicuous air cavities. Inflorescences 0.7–2 cm × 4–6 mm, staminate portion to 5 mm. Pistillate scales yellowbrown medially, 1-veined, equaling perigynia in width, usually shorter, apex obtuse or acute, not inrolled, awns absent. Anthers 1.5–2 mm. Perigynia veinless, stipitate, elliptic, 2.5–3.5 × 1.5 mm, tightly enclosing and distended by achene, base narrowly cuneate, apex acute; beak erose; rachilla shorter than fruit. Stigma 1.5–2.5 mm. Achenes sessile.


Phenology: Fruiting Sep.
Habitat: Moist rocky slopes, alpine meadows
Elevation: above 2500 m

Distribution

V23 1093-distribution-map.jpg

Idaho, Nev., Oreg., Utah, Wyo.

Discussion

Selected References

None.

Lower Taxa

None.

"shortened" is not a number.

... more about "Carex subnigricans"
trigonous +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
beaked +  and awned +
acute;acute;obtuse +
Lisa A. Standley +
Stacey +
cuneate +
entire +  and erose +
0 cm0 mm <br />0 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
5 cm50 mm <br />0.05 m <br /> (12 cm120 mm <br />0.12 m <br />) +
conspicuous +
terete +  and not flattened +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (1 cm10 mm <br />0.01 m <br />) +
glumaceous +  and foliaceous +
2-ranked +  and arranged +
ascending +  and appressed +
scale-like +  and leaflike +
parallel +  and divergent +
terete +, rolled +  and plicate +
round +  and trigonous +
5 cm50 mm <br />0.05 m <br /> (20 cm200 mm <br />0.2 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
Idaho +, Nev. +, Oreg. +, Utah +  and Wyo. +
above 2500 m +
open +, pistillate +  and staminate +
hypogynous +  and subtending +
pale-brown +  and colorless +
biconvex +  and trigonous +
Moist rocky slopes, alpine meadows +
0.7 cm7 mm <br />0.007 m <br /> (2 cm20 mm <br />0.02 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
basal +  and cauline +
with (1-)3-6(-30) bristles and/or scales +
stipitate +  and veinless +
0.4 cm4 mm <br />0.004 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
0.45 cm4.5 mm <br />0.0045 m <br /> (1 cm10 mm <br />0.01 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (?) +
Fruiting Sep. +
2-3(-4)-carpellate +
0 cm0 mm <br />0 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
3 (?) +  and 1 (?) +
Leafl. W. Bot. +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
adventitious +
1-veined +  and pistillate +
yellowbrown +
persistent +
basal +  and proximal +
2-keeled +
0 cm0 mm <br />0 m <br /> (1 cm10 mm <br />0.01 m <br />) +
cylindric +
0 cm0 mm <br />0 m <br /> (13 cm130 mm <br />0.13 m <br />) +
Illustrated +  and Endemic +
1 +  and 3 +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
deciduous +
2-3(-4)-fid +
Carex rachillis +
Carex subnigricans +
Carex sect. Inflatae +
species +
plant +  and cespitose +