Carex concinnoides

Mackenzie

Bull. Torrey Bot. Club 33: 440. 1906.

Common names: Northwest sedge
IllustratedEndemic
Treatment appears in FNA Volume 23. Treatment on page 548. Mentioned on page 545, 546, 547.

Plants loosely cespitose, long-rhizomatous. Culms 14–37 cm. Leaves: basal sheaths dark reddish-brown; blades mostly basal, pale green, shorter than culms, thick, 1.7–4.5 mm wide. Inflorescences: peduncles of proximal spikes short; peduncles of terminal staminate spikes 1.5–3 (–10) mm; proximal bracts short-sheathing; pistillate spikes 1–3, emerging from cauline nodes, aggregated, ascending, ovoid to short-cylindric; staminate spikes 8–22 × 1.8–3.1 mm. Scales: pistillate scales dark reddish-brown, ovate to obovate, apex obtuse to acute, minutely ciliate; staminate scales dark reddish to purplish brown, ovate to obovate, margins white, apex acute, scarious. Anthers 1.9–3.1 mm. Perigynia ellipsoid to obovoid, 2.5–3 × 1.4–1.7 mm, base tapering, pubescent with straight white hairs; beak 0.5 mm. Stigmas 4, erect or convolute, thick, weakly papillose. Achenes obovoid, 1.9–2.5 × 1.3–1.6 mm.


Phenology: Fruiting spring–summer (late Apr–late Jul).
Habitat: Moist to dry, open pine, spruce, Douglas-fir, and aspen woods, often on slopes
Elevation: 60–2100 m

Distribution

V23 1037-distribution-map.jpg

Alta., B.C., Calif., Idaho, Mont., Oreg., Wash.

Discussion

Carex cocinnoides is the only North American sedge with four stigmas per pistil. It is most similar to C. richardsonii; differs in its more closely aggregated, short-pedunculate pistillate spikes with very short-sheathing bracts. These close relatives are sympatric only at the northern and eastern edge of the range of C. concinnoides.

Selected References

None.

Lower Taxa

None.
... more about "Carex concinnoides"
0.19 cm1.9 mm <br />0.0019 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
1.3mm;1.6mm +
0.19 cm1.9 mm <br />0.0019 m <br /> (0.31 cm3.1 mm <br />0.0031 m <br />) +
awned +  and cuspidate +
glabrescent +  and pubescent +
scarious +
William J. Crins +
Mackenzie +
shortened +
dark reddish-brown +
tapering +
straight +
0.5 cm5 mm <br />0.005 m <br /> (?) +
v--shaped +
0 cm0 mm <br />0 m <br /> (?) +  and 0.2 cm2 mm <br />0.002 m <br /> (?) +
1.7mm;4.5mm +
glumaceous +  and foliaceous +
2-ranked +  and arranged +
ascending +  and appressed +
scale-like +  and leaflike +
parallel +  and divergent +
terete +, rolled +  and plicate +
Northwest sedge +
shorter or longer +
round +  and trigonous +
14 cm140 mm <br />0.14 m <br /> (37 cm370 mm <br />0.37 m <br />) +
Alta. +, B.C. +, Calif. +, Idaho +, Mont. +, Oreg. +  and Wash. +
60–2100 m +
open +, pistillate +  and staminate +
hypogynous +  and subtending +
biconvex +  and trigonous +
Moist to dry, open pine, spruce, Douglas-fir, and aspen woods, often on slopes +
straight +
prophyllate +, pedunculate +  and pistillate +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
emarginate +  and entire +
0.3 cm3 mm <br />0.003 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
with (1-)3-6(-30) bristles and/or scales +
stipitate +, veined +  and veinless +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
ascending +  and erect +
0.2 cm2 mm <br />0.002 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
0.14 cm1.4 mm <br />0.0014 m <br /> (0.17 cm1.7 mm <br />0.0017 m <br />) +
Fruiting spring–summer (late Apr–late Jul). +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
Bull. Torrey Bot. Club +
adventitious +
staminate +  and pistillate +
dark reddish +  and purplish brown +
basal +  and proximal +
ovate;obovate +
cylindric +
Illustrated +  and Endemic +
staminate +  and pistillate +
0.8 cm8 mm <br />0.008 m <br /> (2.2 cm22 mm <br />0.022 m <br />) +
ovoid;short-cylindric +
0.18 cm1.8 mm <br />0.0018 m <br /> (0.31 cm3.1 mm <br />0.0031 m <br />) +
1 (?) +  and 3 (?) +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillose +
deciduous +
2-3(-4)-fid +
Carex sect. Digitatae +
Carex concinnoides +
Carex sect. Clandestinae +
species +
plant +  and cespitose +