Carex striata

Michaux

Fl. Bor.-Amer. 2: 174. 1803.

IllustratedEndemic
Synonyms: Carex walteriana L. H. Bailey
Treatment appears in FNA Volume 23. Treatment on page 494. Mentioned on page 491, 492, 493.

Plants colonial; rhizomes long-creeping. Culms central, slender, trigonous, 40–90 cm, smooth, with marcescent remains of previous year’s leaves at base. Leaves: basal sheaths brownish and tattered on fertile culms, reddish purple on youngest culms, apex glabrous; ligules 1.8–12.5 mm; blades green, M-shaped, often ± septate-nodulose, 2.6–5 (–6) mm wide, smooth abaxially, glabrous. Inflorescences 9–35 (–45) cm; peduncle of terminal spike (2–) 3.5–15 cm; rachis beyond the proximal pistillate spikes sharp-angled, finely scabrous; proximal 1–2 spikes pistillate, not or barely overlapping, ascending; distal spikes erect; terminal 1–3 spikes staminate. Pistillate scales lanceolate to ovate, acute to acuminate, sometimes ± smooth-awned to 1.1 mm, glabrous. Perigynia ascending, 14–22-veined, ovoid, 3.9–7 × 2–3.3 mm, glabrous or densely pubescent; beak 0.5–1.3 mm, bidentulate, teeth straight, 0.1–0.6 mm.


Phenology: Fruiting Apr–Jul.
Habitat: Open swamps, sedge meadows, bogs, boggy depressions, in acidic, often peaty soils
Elevation: 0–100 m

Distribution

V23 916-distribution-map.jpg

Ala., Del., Fla., Ga., Md., Mass., Miss., N.H., N.J., N.Y., N.C., S.C., Va.

Discussion

Southward from New Jersey, plants of Carex striata often have increasingly pubescent perigynia; northern, glabrous plants of that cline have been called C. striata var. brevis (A. A. Reznicek and P. M. Catling 1986b).

Exceptionally robust plants of Carex striata with glabrous perigynia may key to C. hyalinolepis, from which they can be distinguished by their broadly ovoid perigynia, smooth-margined pistillate scales, and green leaves.

Selected References

None.

Lower Taxa

None.

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

... more about "Carex striata"
trigonous +
smaller +
A. A. Reznicek +  and Paul M. Catling +
Michaux +
shortened +
reddish purple;brownish +
rounded +
bidentulate +
straight +
emarginate +  and bidentate +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.13 cm1.3 mm <br />0.0013 m <br />) +
septate-nodulose +  and m--shaped +
2.6mm;5mm +
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 +
slender +
40 cm400 mm <br />0.4 m <br /> (90 cm900 mm <br />0.9 m <br />) +
with awn +  and acuminate +
Ala. +, Del. +, Fla. +, Ga. +, Md. +, Mass. +, Miss. +, N.H. +, N.J. +, N.Y. +, N.C. +, S.C. +  and Va. +
0–100 m +
open +, pistillate +  and staminate +
hypogynous +  and subtending +
biconvex +  and trigonous +
Open swamps, sedge meadows, bogs, boggy depressions, in acidic, often peaty soils +
35 cm350 mm <br />0.35 m <br /> (45 cm450 mm <br />0.45 m <br />) +
9 cm90 mm <br />0.09 m <br /> (35 cm350 mm <br />0.35 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 />) +
0.18 cm1.8 mm <br />0.0018 m <br /> (1.25 cm12.5 mm <br />0.0125 m <br />) +
with (1-)3-6(-30) bristles and/or scales +
0.39 cm3.9 mm <br />0.0039 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
pubescent +  and glabrous +
0.2 cm2 mm <br />0.002 m <br /> (0.33 cm3.3 mm <br />0.0033 m <br />) +
Fruiting Apr–Jul. +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
Fl. Bor.-Amer. +
adventitious +
basal +  and proximal +
lanceolate;ovate acute +
0 cm0 mm <br />0 m <br /> (0.11 cm1.1 mm <br />0.0011 m <br />) +
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 +
overlapping +
2 cm20 mm <br />0.02 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
3.5 cm35 mm <br />0.035 m <br /> (15 cm150 mm <br />0.15 m <br />) +
1 (?) +  and 3 (?) +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
deciduous +  and persistent +
2-3(-4)-fid +
Carex walteriana +
Carex striata +
Carex sect. Paludosae +
species +
straight +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.06 cm0.6 mm <br />6.0e-4 m <br />) +
plant +  and colonial +