Carex sartwellii

Dewey

Amer. J. Sci. Arts 43: 90. 1842.

Common names: Carex de Sartwell
IllustratedEndemic
Treatment appears in FNA Volume 23. Treatment on page 302. Mentioned on page 303.

Culms trigonous, scabrous-angled distally, (30–) 40–120 cm; vegetative culms somewhat taller. Leaves: basal sheaths brown; sheaths glabrous, inner band green, veined, apex hyaline, prolonged 1–4.5 mm; ligules 2.2–8 mm; blades 2.5–4.6 mm wide. Inflorescences nearly cylindric, except near apex, 2.5–7 (–9) cm; spikes ascending, ovate, 3.2–11 × 1.1–7 mm, basal spikes slightly more prominent than middle spikes. Pistillate scales pale-brown to straw colored at maturity, hyaline margins, ovate, apex acute to acuminate, glabrous. Staminate scales pale-brown to straw colored, narrowly ovate, apex acute, glabrous. Perigynia (2.5–) 2.8–4.1 (–4.6) × 1.3–2 mm; beak 0.4–1 (–1.2) mm. Achenes brown.


Phenology: Fruiting Jun–Jul.
Habitat: Fens, wet prairies, sedge meadows, marshes, wet, open thickets, open swamps, stream, pond, and lakeshores, ditches, often in shallow water
Elevation: 0–2100 m

Distribution

V23 525-distribution-map.jpg

Alta., B.C., Man., N.W.T., Ont., Que., Sask., Colo., Idaho, Ill., Ind., Iowa, Mich., Minn., Mo., Mont., Nebr., N.Y., N.Dak., Ohio, Pa., S.Dak., Wis., Wyo.

Discussion

Carex sartwellii is an important wetland species in portions of the Midwest and West, but becomes increasingly uncommon and local eastward. It forms large, loose clones, but can be easily overlooked because flowering and fruiting are sometimes uncommon. Once seen, the tall, tristichous vegetative culms scattered along the rhizome are distinctive.

Selected References

None.

Lower Taxa

None.

"prolonged" is not a number."taller" is not a number.

... more about "Carex sartwellii"
biconvex +
smaller +
0.1 cm1 mm <br />0.001 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
A. A. Reznicek +  and Paul M. Catling +
shortened +
rounded +
Holarrhenae +
0.1 cm1 mm <br />0.001 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
v--shaped +
2.5mm;4.6mm +
glumaceous +  and foliaceous +
2-ranked +  and arranged +
ascending +  and appressed +
scale-like +  and leaflike +
parallel +  and divergent +
terete +, rolled +  and plicate +
Carex de Sartwell +
scabrous-angled +  and trigonous +
40 cm400 mm <br />0.4 m <br /> (120 cm1,200 mm <br />1.2 m <br />) +
Alta. +, B.C. +, Man. +, N.W.T. +, Ont. +, Que. +, Sask. +, Colo. +, Idaho +, Ill. +, Ind. +, Iowa +, Mich. +, Minn. +, Mo. +, Mont. +, Nebr. +, N.Y. +, N.Dak. +, Ohio +, Pa. +, S.Dak. +, Wis. +  and Wyo. +
0–2100 m +
open +, pistillate +  and staminate +
hypogynous +  and subtending +
biconvex +  and trigonous +
Fens, wet prairies, sedge meadows, marshes, wet, open thickets, open swamps, stream, pond, and lakeshores, ditches, often in shallow water +
7 cm70 mm <br />0.07 m <br /> (9 cm90 mm <br />0.09 m <br />) +
2.5 cm25 mm <br />0.025 m <br /> (7 cm70 mm <br />0.07 m <br />) +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
basal +  and cauline +
0.22 cm2.2 mm <br />0.0022 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
with (1-)3-6(-30) bristles and/or scales +
sessile +  and veined +
0.41 cm4.1 mm <br />0.0041 m <br /> (0.46 cm4.6 mm <br />0.0046 m <br />) +
0.28 cm2.8 mm <br />0.0028 m <br /> (0.41 cm4.1 mm <br />0.0041 m <br />) +
0.13 cm1.3 mm <br />0.0013 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Fruiting Jun–Jul. +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
Amer. J. Sci. Arts +
adventitious +
staminate +  and pistillate +
pale-brown +  and straw colored +
basal +  and proximal +
ovate;ovate +
not differentiated +
cylindric +
Illustrated +  and Endemic +
0.32 cm3.2 mm <br />0.0032 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
unisexual +  and androgynous +
0.11 cm1.1 mm <br />0.0011 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
1 (?) +  and 3 (?) +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
deciduous +
2-3(-4)-fid +
Carex sect. Distichae +
Carex sartwellii +
Carex sect. Holarrhenae +
species +
plant +  and not cespitose +