Carex adusta

Boott in W. J. Hooker

in W. J. Hooker, Fl. Bor.-Amer. 2: 215. 1839.

Common names: Carex brûlé
IllustratedEndemic
Treatment appears in FNA Volume 23. Treatment on page 356. Mentioned on page 254, 333, 357.

Plants densely cespitose. Culms 25–80 cm. Leaves: sheaths adaxially hyaline, often green-veined nearly to collar, summits U or V-shaped or rounded, sometimes prolonged to 1.5 mm beyond collar; distal ligules 1–4 mm; blades 2–5 per fertile culm, 7–25 cm × 2–3.5 mm. Inflorescences stiffly erect, dense or open, greenish brown to gold, 2–4.5 cm × 12–20 mm; proximal internode 2–15 mm; 2d internode 2.5–5 mm; proximal bracts leaflike, much longer than inflorescence, or bristlelike. Spikes 5–8 (–11), usually distinct, broadly ovoid, 8–11 × 5–8 mm, base and apex acute to rounded. Pistillate scales reddish-brown, with paler center, ovate to broadly ovate, 4–5.5 mm, equaling, ± covering perigynia, hyaline margin absent or to 0.2 mm, apex acute to mucronate. Perigynia ascending to spreading, green, gold, or cream colored, conspicuously 7–11-veined abaxially, conspicuously 0 (–2) -veined adaxially, ovate to broadly ovate, planoconvex to biconvex, 4–5 × 1.9–2.5 mm, 0.7–1.1 mm thick, margin flat, including wing 0.2–0.6 mm wide, often thickened; beak gold at tip, flat, ciliate-serrulate, abaxial suture usually inconspicuous, distance from beak tip to achene 1.7–2 mm. Achenes obovate to elliptic, 2.1–2.5 × 1.6–2 mm, 0.7–1 mm thick. 2n = 78.


Phenology: Fruiting spring–summer.
Habitat: Dry, acidic, sandy soils of open woods and clearings, moist shores
Elevation: 0–400 m

Distribution

V23 620-distribution-map.jpg

Alta., B.C., Man., Nfld. and Labr. (Nfld.), N.S., Ont., Que., Sask., Maine, Mich., Minn., N.Y., Wis.

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 adusta"
obovate;elliptic +
smaller +
0.7mm +  and 1mm +
bidentatate +
papillose +
Joy Mastrogiuseppe +, Paul E. Rothrock +, A. C. Dibble +  and A. A. Reznicek +
Boott in W. J. Hooker +
shortened +
persistent +
acute +  and rounded +
not enlarged +
ciliate-serrulate +
7 cm70 mm <br />0.07 m <br /> (25 cm250 mm <br />0.25 m <br />) +
2 (?) +  and 5 (?) +
v--shaped +
2mm;3.5mm +
glumaceous +  and foliaceous +
2-ranked +  and arranged +
ascending +  and appressed +
scale-like +  and leaflike +
parallel +  and divergent +
terete +, rolled +  and plicate +
Carex brûlé +
round +  and trigonous +
25 cm250 mm <br />0.25 m <br /> (80 cm800 mm <br />0.8 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Alta. +, B.C. +, Man. +, Nfld. and Labr. (Nfld.) +, N.S. +, Ont. +, Que. +, Sask. +, Maine +, Mich. +, Minn. +, N.Y. +  and Wis. +
0–400 m +
open +, pistillate +  and staminate +
hypogynous +  and subtending +
biconvex +  and trigonous +
Dry, acidic, sandy soils of open woods and clearings, moist shores +
greenish brown +  and gold +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
not prophyllate +, sessile +  and pistillate +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
basal +  and cauline +
0.2mm +  and 0.6mm +
with (1-)3-6(-30) bristles and/or scales +
0(-2)-veined +  and 7-11-veined +
cream colored +, gold +  and green +
ascending +  and spreading +
0.7mm +  and 1.1mm +
Fruiting spring–summer. +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
0.2 cm2 mm <br />0.002 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
in W. J. Hooker, Fl. Bor.-Amer. +
adventitious +
reddish-brown +
basal +  and proximal +
ovate;broadly ovate +
0.4 cm4 mm <br />0.004 m <br /> (0.55 cm5.5 mm <br />0.0055 m <br />) +
herbaceous +  and membranous +
not differentiated +
cylindric +
Illustrated +  and Endemic +
distinct +
0.8 cm8 mm <br />0.008 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
1 (?) +  and 3 (?) +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
deciduous +  and persistent +
2-3(-4)-fid +
prolonged +
rounded +, v--shaped +  and u +
0 cm0 mm <br />0 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
Carex adusta +
Carex sect. Ovales +
species +
plant +  and cespitose +