Carex geyeri

Boott

Trans. Linn. Soc. London 20: 118. 1846.

Common names: Elk sedge
IllustratedEndemic
Treatment appears in FNA Volume 23. Treatment on page 564. Mentioned on page 563.

Plants not cespitose, long-rhizomatous. Culms 13–49 cm, triangular, scabrous distally. Leaves: basal sheaths reddish-brown to dark-brown; blades plane, 1.1–3.5 mm wide, equaling or exceeding culms. Spike with staminate portion separated from pistillate portion by short but conspicuous internode, with pistillate portion unbranched, 7.5–26.5 × 1.3–2.2 mm. Pistillate scales brown, chartaceous, apex cuspidate to short-awned. Staminate scales reddish-brown, apex cuspidate to short-awned. Anthers 2.2–6.2 mm. Perigynia 1–3, greenish yellow to brown, with 2 marginal veins, otherwise veinless, 5–6.8 (–8.4) × 1.8–2.8 mm.


Phenology: Fruiting late Apr–late Aug.
Habitat: Dry montane and subalpine grasslands, burns, and open spruce, fir, or pine woods
Elevation: 800–3300 m

Distribution

V23 1075-distribution-map.jpg

Alta., B.C., Colo., Idaho, Mont., Nev., Oreg., Pa., Utah, Wash., Wyo.

Discussion

A disjunct population of Carex geyeri is known from Centre County, Pennsylvania, well beyond the normal range of the species in the western mountains. The site should be re-examined to determine whether it persists there and whether it was native or introduced. Carex geyeri is an important native forage species in western montane grasslands (A. Cronquist et al. 1972+, vol. 6).

Selected References

None.

Lower Taxa

None.

"shortened" is not a number.

... more about "Carex geyeri"
trigonous +
0.22 cm2.2 mm <br />0.0022 m <br /> (0.62 cm6.2 mm <br />0.0062 m <br />) +
cuspidate +  and short-awned +
rounded +
William J. Crins +
reddish-brown;dark-brown +
tapering +
Carex subsect. Firmiculmes +
exceeding culms +  and equaling +
0.11 cm1.1 mm <br />0.0011 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
glumaceous +  and foliaceous +
2-ranked +  and arranged +
ascending +  and appressed +
scale-like +  and leaflike +
parallel +  and divergent +
terete +, rolled +  and plicate +
Elk sedge +
red brown +  and brown +
triangular +
13 cm130 mm <br />0.13 m <br /> (49 cm490 mm <br />0.49 m <br />) +
Alta. +, B.C. +, Colo. +, Idaho +, Mont. +, Nev. +, Oreg. +, Pa. +, Utah +, Wash. +  and Wyo. +
800–3300 m +
open +, pistillate +  and staminate +
hypogynous +  and subtending +
biconvex +  and trigonous +
Dry montane and subalpine grasslands, burns, and open spruce, fir, or pine woods +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
basal +  and cauline +
with (1-)3-6(-30) bristles and/or scales +
0.68 cm6.8 mm <br />0.0068 m <br /> (0.84 cm8.4 mm <br />0.0084 m <br />) +
greenish yellow +  and brown +
0.5 cm5 mm <br />0.005 m <br /> (0.68 cm6.8 mm <br />0.0068 m <br />) +
0.47 cm4.7 mm <br />0.0047 m <br /> (0.84 cm8.4 mm <br />0.0084 m <br />) +
0.18 cm1.8 mm <br />0.0018 m <br /> (0.28 cm2.8 mm <br />0.0028 m <br />) +
Fruiting late Apr–late Aug. +
2-3(-4)-carpellate +
unbranched +, pistillate +  and staminate +
3 (?) +  and 1 (?) +
Trans. Linn. Soc. London +
adventitious +
staminate +  and pistillate +
reddish-brown +  and brown +
basal +  and proximal +
2-keeled +
0 cm0 mm <br />0 m <br /> (1 cm10 mm <br />0.01 m <br />) +
cylindric +
Illustrated +  and Endemic +
0.75 cm7.5 mm <br />0.0075 m <br /> (2.65 cm26.5 mm <br />0.0265 m <br />) +
0.13 cm1.3 mm <br />0.0013 m <br /> (0.22 cm2.2 mm <br />0.0022 m <br />) +
1 +  and 3 +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
deciduous +
2-3(-4)-fid +
Carex geyeri +
Carex sect. Firmiculmes +
species +
plant +  and not cespitose +