Carex hyalinolepis

Steudel

Syn. Pl. Glumac. 2: 235. 1855.

IllustratedEndemic
Treatment appears in FNA Volume 23. Treatment on page 493. Mentioned on page 491, 494, 497.

Plants colonial; rhizomes long-creeping. Culms central, coarse, trigonous, 40–110 cm, smooth. Leaves: basal sheaths pale green to brownish or pale-red tinged, base with marescent remains of previous year’s leaves; longest ligules 2–10 (–12) mm, less than 2 times longer than wide; blades glaucous, flat to V-shaped, (4–) 5.5–13 mm wide, glabrous. Inflorescences 15–50 cm; proximal 2–4 spikes pistillate, ascending to arching; distal spikes erect; terminal 3–6 spikes staminate. Pistillate scales lanceolate to ovate, apex obtuse to acute, glabrous, awn 0.9–8.5 mm, scabrous. Perigynia ascending, obscurely 10–15-veined, veins somewhat impressed, narrowly ovoid, (4.5–) 5.5–7.7 × 1.6–3 mm, glabrous; beak obscure, 0.9–1.7 mm, bidentulate, teeth straight, 0.4–0.8 mm.


Phenology: Fruiting Apr–Jul.
Habitat: Swamp forests, river bottoms, shores of streams, ponds and lakes, wet meadows, often in clay soils, seasonally moist sites
Elevation: 0–400 m

Distribution

V23 914-distribution-map.jpg

Ont., Ark., Fla., Ga., Ill., Ind., Iowa, Kans., Ky., La., Md., Mich., Miss., Mo., Nebr., N.C., Ohio, Okla., Pa., S.C., Tex., Va.

Discussion

Carex hyalinolepis is abundant in the Mississippi lowlands and often dominant in the understory of open, wet floodplain forests and bottomland meadows. It is a rapid invader of ditches and other disturbed areas. Sometimes extensive stands are seen without fertile culms.

Occasionally, Carex hyalinolepis hybridizes with C. pellita (= C. ×subimpressa Clokey, according to A. A. Reznicek and P. M. Catling 1986), and rarely with C. lacustris. Carex ×subimpressa is sufficiently frequent that it has been treated as a species in some floras. It can form large colonies in suitable sites.

Selected References

None.

Lower Taxa

None.

"lengthofbody" is not declared as a valid unit of measurement for this property.

... more about "Carex hyalinolepis"
trigonous +
smaller +
A. A. Reznicek +  and Paul M. Catling +
Steudel +
0.09 cm0.9 mm <br />9.0e-4 m <br /> (0.85 cm8.5 mm <br />0.0085 m <br />) +
shortened +
pale green;brownish or pale-red tinged +
rounded +
bidentulate +
straight +
emarginate +  and bidentate +
0.09 cm0.9 mm <br />9.0e-4 m <br /> (0.17 cm1.7 mm <br />0.0017 m <br />) +
glabrous +  and glaucous +
flat +  and v-shaped +
5.5mm;13mm +
glumaceous +  and foliaceous +
2-ranked +  and arranged +
ascending +  and appressed +
scale-like +  and leaflike +
parallel +  and divergent +
terete +, rolled +  and plicate +
involute +  and channeled +
red tinged +
trigonous +
40 cm400 mm <br />0.4 m <br /> (110 cm1,100 mm <br />1.1 m <br />) +
with awn +  and acuminate +
Ont. +, Ark. +, Fla. +, Ga. +, Ill. +, Ind. +, Iowa +, Kans. +, Ky. +, La. +, Md. +, Mich. +, Miss. +, Mo. +, Nebr. +, N.C. +, Ohio +, Okla. +, Pa. +, S.C. +, Tex. +  and Va. +
0–400 m +
open +, pistillate +  and staminate +
hypogynous +  and subtending +
biconvex +  and trigonous +
Swamp forests, river bottoms, shores of streams, ponds and lakes, wet meadows, often in clay soils, seasonally moist sites +
15 cm150 mm <br />0.15 m <br /> (50 cm500 mm <br />0.5 m <br />) +
staminate +, prophyllate +, pedunculate +  and pistillate +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
basal +  and cauline +
pubescent;,;glabrous +
septate-nodulose +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (2.1 cm21 mm <br />0.021 m <br />) +
1 cm10 mm <br />0.01 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (1 cm10 mm <br />0.01 m <br />) +
with (1-)3-6(-30) bristles and/or scales +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
Fruiting Apr–Jul. +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
Syn. Pl. Glumac. +
adventitious +
basal +  and proximal +
lanceolate;ovate +
ladder-fibrillose +
shorter or longer +
septate-nodulose +
0 cm0 mm <br />0 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Illustrated +  and Endemic +
staminate +  and pistillate +
ascending +  and arching +
1 (?) +  and 3 (?) +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
deciduous +  and persistent +
2-3(-4)-fid +
Carex hyalinolepis +
Carex sect. Paludosae +
species +
straight +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.08 cm0.8 mm <br />8.0e-4 m <br />) +
0.45 cm4.5 mm <br />0.0045 m <br /> (0.55 cm5.5 mm <br />0.0055 m <br />) +
0.55 cm5.5 mm <br />0.0055 m <br /> (0.77 cm7.7 mm <br />0.0077 m <br />) +
1.6mm +  and 3mm +
plant +  and colonial +