Carex aureolensis

Steudel

Syn. Pl. Glumac. 2: 223. 1855.

Illustrated
Synonyms: Carex atrovirens Boeckeler Carex involucrata Boeckeler
Treatment appears in FNA Volume 23. Treatment on page 519. Mentioned on page 516, 518.

Plants colonial, long-rhizomatous. Culms (10–) 20–85 cm. Leaves 2–8.5 mm wide, sparingly scabrous. Spikes 4–6, erect; lateral spikes pistillate with a few staminate flowers proximally and rarely also distally, narrowly elliptic, 11–4.5 × 5.5–11 mm; terminal spike staminate, sometimes gynecandrous or abortive, 9–42 × 1.5–3.5 mm. Pistillate scales with distinct body, 2.9–7 (–11.8) × 0.4–0.9 (–1.1) mm, body 1.5–2.5 mm, translucent, apex with long, scabrous awn to 1.4–4.5 (–9) mm, exceeding perigynia. Staminate scales ± tightly imbricate, lanceolate, narrowly ovate, or oblong-obovate, 3.3–9.3 (–12.5) × 0.9–1.6 mm, apex acute to truncate-erose or retuse, sometimes with scabrous awn to 0.1–6.2 (–9.2) mm. Perigynia horizontal, 3.2–5.1 (–5.6) × 1.3–2.5 mm, minutely pustulate; beak 1.2–2.1 mm, smooth. Achenes trigonousobovoid, sides strongly concave, 1.2–1.8 (–2.1) × 0.9–1.3 (–1.5) mm, less than 2 times as long as wide; style deciduous, straight or sinuous.


Phenology: Fruiting summer.
Habitat: Wet meadows and woods, muddy margins of lakes and ponds, roadside ditches
Elevation: 0–500 m

Distribution

V23 969-distribution-map.jpg

Ala., Ark., Fla., Ga., Ill., Kans., Ky., La., Miss., Mo., Nebr., N.Mex., N.C., Okla., S.C., Tenn., Tex., Va., Mexico (Coahuila), Mexico (Nuevo León), South America

Discussion

Carex aureolensis has been recognized as a distinct species based on its staminate and pistillate scale morphology, growth habit, and distribution.

Selected References

None.

Lower Taxa

None.

"not undefined" is not a number.

... more about "Carex aureolensis"
trigonous +
smaller +
beaked +  and truncate +
Bruce A. Ford +  and A. A. Reznicek +
Steudel +
0.62 cm6.2 mm <br />0.0062 m <br /> (0.92 cm9.2 mm <br />0.0092 m <br />) +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.62 cm6.2 mm <br />0.0062 m <br />) +
shortened +
rounded-tapering +  and tapering +
1.2 +  and 3.8 +
bidentate +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.21 cm2.1 mm <br />0.0021 m <br />) +
v--shaped +  and septate-nodulose +
0mm;20mm +
distinct +
indistinct +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
glumaceous +  and foliaceous +
2-ranked +  and arranged +
ascending +  and appressed +
scale-like +  and leaflike +
parallel +  and divergent +
terete +, rolled +  and plicate +
redbrown +  and brown +
round +  and trigonous +
20 cm200 mm <br />0.2 m <br /> (85 cm850 mm <br />0.85 m <br />) +
Ala. +, Ark. +, Fla. +, Ga. +, Ill. +, Kans. +, Ky. +, La. +, Miss. +, Mo. +, Nebr. +, N.Mex. +, N.C. +, Okla. +, S.C. +, Tenn. +, Tex. +, Va. +, Mexico (Coahuila) +, Mexico (Nuevo León) +  and South America +
0–500 m +
hypogynous +  and subtending +
biconvex +  and trigonous +
Wet meadows and woods, muddy margins of lakes and ponds, roadside ditches +
prophyllate +  and pedunculate +
1.1 cm11 mm <br />0.011 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
0.55 cm5.5 mm <br />0.0055 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
basal +  and cauline +
0.2 cm2 mm <br />0.002 m <br /> (0.85 cm8.5 mm <br />0.0085 m <br />) +
with (1-)3-6(-30) bristles and/or scales +
stipitate +, sessile +  and many-veined +
0.51 cm5.1 mm <br />0.0051 m <br /> (0.56 cm5.6 mm <br />0.0056 m <br />) +
0.32 cm3.2 mm <br />0.0032 m <br /> (0.51 cm5.1 mm <br />0.0051 m <br />) +
0.13 cm1.3 mm <br />0.0013 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
Fruiting summer. +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
thread-like;leaflike +
Syn. Pl. Glumac. +
adventitious +
staminate +  and pistillate +
0.93 cm9.3 mm <br />0.0093 m <br /> (1.25 cm12.5 mm <br />0.0125 m <br />) +
0.09 cm0.9 mm <br />9.0e-4 m <br /> (0.11 cm1.1 mm <br />0.0011 m <br />) +
0.33 cm3.3 mm <br />0.0033 m <br /> (0.93 cm9.3 mm <br />0.0093 m <br />) +
basal +  and proximal +
oblong-obovate;ovate;oblong-obovate;ovate;lanceolate +
0.9mm;1.6mm +
cylindric +
0.18 cm1.8 mm <br />0.0018 m <br /> (0.21 cm2.1 mm <br />0.0021 m <br />) +
0.13 cm1.3 mm <br />0.0013 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.18 cm1.8 mm <br />0.0018 m <br />) +
concave +
0.09 cm0.9 mm <br />9.0e-4 m <br /> (?) +  and 0.13 cm1.3 mm <br />0.0013 m <br /> (?) +
Illustrated +
1 (?) +  and 3 (?) +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
sinuous +  and straight +
deciduous +
2-3(-4)-fid +
Carex atrovirens +  and Carex involucrata +
Carex aureolensis +
Carex sect. Squarrosae +
species +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (?) +
plant +  and colonial +