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.
Revision as of 00:49, 30 July 2020 by imported>Volume Importer
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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.

"shortened" is not a number."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 />) +
acute;short-awned +
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 +
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 +
0 cm0 mm <br />0 m <br /> (2 cm20 mm <br />0.02 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 +
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 +
basal +  and proximal +
0.13 cm1.3 mm <br />0.0013 m <br /> (0.22 cm2.2 mm <br />0.0022 m <br />) +
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 />) +