Carex hoodii

Boott in W. J. Hooker

in W. J. Hooker, Fl. Bor.-Amer. 2: 211, plate 211. 1839.

IllustratedEndemic
Treatment appears in FNA Volume 23. Treatment on page 291. Mentioned on page 287.

Plants without conspicuous rhizomes. Culms 20–80 cm, 1.7–2 mm wide basally, 0.6–0.9 mm wide distally. Leaves: sheaths tight, green, fronts hyaline; ligules less than 3 mm, wider than to as wide as long; widest leaf-blades 1–3.5 mm wide. Inflorescences capitate, with 4–8 spikes, individual spikes difficult to distinguish, 0.8–2 cm × 6–15 mm; proximal bracts to 1.5 cm; spikes with 5–10 ascending or spreading perigynia. Pistillate scales brown with green midvein, ovate, 3.8–4.3 × 1.3–2.2 mm, body as long as and slightly narrower than to as wide as perigynium, apex acute to short-awned. Anthers 1.5–2.2 mm. Perigynia dark-brown with green margins, veinless or obscurely veined abaxially, 3.2–5 × 1.4–2.5 mm, margins serrulate distally; beak 0.7–1.5 mm, apical teeth 0.2–0.6 mm. Achenes suborbiculate, 1.7–2.1 × 1.7–1.8 mm. 2n = 58, 60.


Phenology: Fruiting late spring–mid summer.
Habitat: Dry to mesic grasslands, rocky slopes, screes, forest openings
Elevation: 0–3500 m

Distribution

V23 497-distribution-map.jpg

Alta., B.C., Sask., Yukon, Alaska, Calif., Colo., Idaho, Mont., Nev., Oreg., S.Dak., Utah, Wash., Wyo.

Discussion

Selected References

None.

Lower Taxa

None.

"slightly narrower" is not a number.

... more about "Carex hoodii"
0.17 cm1.7 mm <br />0.0017 m <br /> (0.21 cm2.1 mm <br />0.0021 m <br />) +
suborbiculate +
smaller +
1.7mm;1.8mm +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.22 cm2.2 mm <br />0.0022 m <br />) +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.06 cm0.6 mm <br />6.0e-4 m <br />) +
Peter W. Ball +
Boott in W. J. Hooker +
shortened +
white-hyaline +, hyaline +  and narrow +
red tinged +  and brown +
rounded +
bidentate +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
v--shaped +
0mm;20mm +
glumaceous +  and foliaceous +
2-ranked +  and arranged +
ascending +  and appressed +
scale-like +  and leaflike +
parallel +  and divergent +
terete +, rolled +  and plicate +
round +  and trigonous +
20 cm200 mm <br />0.2 m <br /> (80 cm800 mm <br />0.8 m <br />) +
0.6mm;0.9mm +
Alta. +, B.C. +, Sask. +, Yukon +, Alaska +, Calif. +, Colo. +, Idaho +, Mont. +, Nev. +, Oreg. +, S.Dak. +, Utah +, Wash. +  and Wyo. +
0–3500 m +
open +, pistillate +  and staminate +
hypogynous +  and subtending +
biconvex +  and trigonous +
Dry to mesic grasslands, rocky slopes, screes, forest openings +
0.8 cm8 mm <br />0.008 m <br /> (2 cm20 mm <br />0.02 m <br />) +
0.6 cm6 mm <br />0.006 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
, +  and racemose +
sessile +  and pistillate +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
basal +  and cauline +
0 cm0 mm <br />0 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
wider as-wide-as than to long +
with (1-)3-6(-30) bristles and/or scales +
veined +  and veinless +
0.32 cm3.2 mm <br />0.0032 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
spreading +  and ascending +
0.14 cm1.4 mm <br />0.0014 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
Fruiting late spring–mid summer. +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
0 cm0 mm <br />0 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
in W. J. Hooker, Fl. Bor.-Amer. +
adventitious +
0.38 cm3.8 mm <br />0.0038 m <br /> (0.43 cm4.3 mm <br />0.0043 m <br />) +
basal +  and proximal +
1.3mm;2.2mm +
cylindric +
Illustrated +  and Endemic +
1 (?) +  and 3 (?) +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
deciduous +
2-3(-4)-fid +
Carex hoodii +
Carex sect. Phaestoglochin +
species +
rhizomatous +  and short-rhizomatous +
0.1 cm1 mm <br />0.001 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +