Carex proposita

Mackenzie in N. L. Britton et al.

in N. L. Britton et al., N. Amer. Fl. 18: 126. 1931.

IllustratedEndemic
Treatment appears in FNA Volume 23. Treatment on page 353. Mentioned on page 341, 350.

Plants densely cespitose. Culms 10–35 cm. Leaves: sheath adaxially white-hyaline, summits U-shaped; distal ligules 0.9–2 mm; blades 2–4 (–5) per fertile culm, occasionally folded, 6–20 cm × (0.5–) 1–2 (–2.5) mm, if not folded, margins revolute. Inflorescences dense or open, gold to dark-brown, 1.7–3 cm × 11–18 mm; proximal internode 4–8.6 mm; 2d internode 1.5–3.5 mm; proximal bracts usually scalelike or bristlelike, occasionally leaflike, shorter than inflorescences. Spikes 3–6, distant to loosely aggregated, distinct or individually indistinct, broadly ovoid, 10–15 × 7–9 mm, base acute to attenuate, apex rounded. Pistillate scales gold or reddish to dark-brown, with pale midstripe, lanceolate to ovate, 3.5–4.8 mm, usually shorter than and 1/3–1/2 width of perigynia, margin white, 0–0.2 mm wide, apex obtuse to acuminate. Anthers long-persistent. Perigynia ascending to spreading, gold to coppery; conspicuously 3–11-veined abaxially, conspicuously 0–13-veined adaxially, broadly ovate, usually flat, 4.3–6.3 × 2–3 mm, 0.25–0.5 mm thick, margin flat, including wing 0.4–0.9 mm wide, edge often minutely crinkled; beak redbrown or brown, usually white-hyaline at tip, cylindric, unwinged, ± entire for (0.3–) 0.5–0.9 mm, ciliate-serrulate at least on distal body, abaxial suture inconspicuous or with conspicuous white margin, distance from beak tip to achene (1.9–) 2.2–3.7 mm. Achenes elliptic, 1.5–2.1 × 0.75–1.1 (–1.3) mm, 0.25–0.5 mm thick.


Phenology: Fruiting summer.
Habitat: Montane and rocky places
Elevation: 2400–4100 m

Discussion

Selected References

None.

Lower Taxa

None.

"+timesaslongasinflorescences" is not declared as a valid unit of measurement for this property."not undefined" is not a number.

... more about "Carex proposita"
with conspicuous white margin +  and inconspicuous +
0.19 cm1.9 mm <br />0.0019 m <br /> (0.22 cm2.2 mm <br />0.0022 m <br />) +
biconvex +
smaller +
0.25mm +  and 0.5mm +
long-persistent +
bidentatate +
papillose +
Joy Mastrogiuseppe +, Paul E. Rothrock +, A. C. Dibble +  and A. A. Reznicek +
Mackenzie in N. L. Britton et al. +
shortened +
persistent +
acute +  and attenuate +
not enlarged +
ciliate-serrulate +  and entire +
cylindric +
0.2 cm2 mm <br />0.002 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
6 cm60 mm <br />0.06 m <br /> (20 cm200 mm <br />0.2 m <br />) +
2 (?) +  and 4 (?) +
v--shaped +
1mm;2mm +
glumaceous +  and foliaceous +
2-ranked +  and arranged +
ascending +  and appressed +
scale-like +  and leaflike +
parallel +  and divergent +
terete +, rolled +  and plicate +
round +  and trigonous +
10 cm100 mm <br />0.1 m <br /> (35 cm350 mm <br />0.35 m <br />) +
0.09 cm0.9 mm <br />9.0e-4 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Calif. +, Idaho +  and Wash. +
crinkled +
2400–4100 m +
open +, pistillate +  and staminate +
hypogynous +  and subtending +
biconvex +  and trigonous +
Montane and rocky places +
gold +  and dark-brown +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
not prophyllate +, sessile +  and pistillate +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
basal +  and cauline +
conspicuous +
0.4mm +  and 0.9mm +
with (1-)3-6(-30) bristles and/or scales +
0-13-veined +  and 3-11-veined +
gold +  and coppery +
ascending +  and spreading +
0.25mm +  and 0.5mm +
Fruiting summer. +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
0.4 cm4 mm <br />0.004 m <br /> (0.86 cm8.6 mm <br />0.0086 m <br />) +
in N. L. Britton et al., N. Amer. Fl. +
adventitious +
reddish +  and dark-brown +
basal +  and proximal +
lanceolate;ovate +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.48 cm4.8 mm <br />0.0048 m <br />) +
1/3 width of perigynia;1/2 width of perigynia +
herbaceous +  and membranous +
not differentiated +
cylindric +
Illustrated +  and Endemic +
distant +  and loosely aggregated +
distinct +
1 cm10 mm <br />0.01 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
0.7 cm7 mm <br />0.007 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
1 (?) +  and 3 (?) +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
deciduous +  and persistent +
2-3(-4)-fid +
u--shaped +
Carex proposita +
Carex sect. Ovales +
species +
0.25mm +  and 0.5mm +
plant +  and cespitose +