Carex sparganioides

Muhlenberg ex Willdenow

Sp. Pl. 4(1): 237. 1805.

Common names: Carex faux-rubanier
IllustratedEndemic
Treatment appears in FNA Volume 23. Treatment on page 297. Mentioned on page 286, 296.

Plants without conspicuous rhizomes. Culms 30–100 cm, 3–6 mm wide basally, 0.7–1.1 mm wide distally. Leaves: proximal sheaths loose, longitudinally green-and-white-striped, green-and-white-mottled, with prominent cross-veins on backs, fronts hyaline and transversely rugose; ligules 3–8 mm, as long as wide; widest leaf-blades 5–10 mm wide. Inflorescences with 6–15 spikes, 3–15 cm × 8–12 mm, occasionally compound and then somewhat larger; proximal internodes usually 20+ mm, more than 2 times as long as proximal spikes; proximal bracts to 2 cm; spikes with up to 50 ascending to spreading perigynia. Pistillate scales hyaline with green midvein, ovate to subcircular, 1.8–2.5 × 1.1–1.8 mm, body 1/2 length of perigynium, apex obtuse to acuminate or short-awned. Anthers 0.7–1.3 mm. Perigynia pale green, with wing 0.1–0.2 mm wide distally, veinless or weakly veined abaxially, 3.3–4.3 × 1.5–2.5 mm, margins serrulate distally; beak 0.8–1.2 mm, apical teeth 0.2–0.4 mm. Achenes suborbiculate, 1.7–2.2 × 1.5–1.8 mm. 2n = 46, 48.


Phenology: Fruiting late spring–early summer.
Habitat: Dry to moist deciduous and mixed forests, forest edges, on neutral or basic soils
Elevation: 50–300 m

Distribution

V23 515-distribution-map.jpg

Ont., Que., Ark., Conn., Del., D.C., Ga., Ill., Iowa, Kans., Ky., Maine, Md., Mass., Mich., Minn., Mo., Nebr., N.H., N.J., N.Y., Ohio, Pa., S.Dak., Tenn., Vt., Va., W.Va., Wis.

Discussion

Selected References

None.

Lower Taxa

None.

"/2lengthofperigynium" is not declared as a valid unit of measurement for this property.

... more about "Carex sparganioides"
0.17 cm1.7 mm <br />0.0017 m <br /> (0.22 cm2.2 mm <br />0.0022 m <br />) +
suborbiculate +
smaller +
1.5mm;1.8mm +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.13 cm1.3 mm <br />0.0013 m <br />) +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.04 cm0.4 mm <br />4.0e-4 m <br />) +
Peter W. Ball +
Muhlenberg ex Willdenow +
shortened +
white-hyaline +, hyaline +  and narrow +
red tinged +  and brown +
rounded +
bidentate +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
v--shaped +
0mm;20mm +
glumaceous +  and foliaceous +
2-ranked +  and arranged +
ascending +  and appressed +
scale-like +  and leaflike +
parallel +  and divergent +
terete +, rolled +  and plicate +
Carex faux-rubanier +
round +  and trigonous +
30 cm300 mm <br />0.3 m <br /> (100 cm1,000 mm <br />1 m <br />) +
0.7mm;1.1mm +
Ont. +, Que. +, Ark. +, Conn. +, Del. +, D.C. +, Ga. +, Ill. +, Iowa +, Kans. +, Ky. +, Maine +, Md. +, Mass. +, Mich. +, Minn. +, Mo. +, Nebr. +, N.H. +, N.J. +, N.Y. +, Ohio +, Pa. +, S.Dak. +, Tenn. +, Vt. +, Va. +, W.Va. +  and Wis. +
50–300 m +
open +, pistillate +  and staminate +
hypogynous +  and subtending +
biconvex +  and trigonous +
Dry to moist deciduous and mixed forests, forest edges, on neutral or basic soils +
, +  and racemose +
sessile +  and pistillate +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
basal +  and cauline +
0.3 cm3 mm <br />0.003 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
with (1-)3-6(-30) bristles and/or scales +
veined +  and veinless +
0.33 cm3.3 mm <br />0.0033 m <br /> (0.43 cm4.3 mm <br />0.0043 m <br />) +
ascending +  and spreading +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
Fruiting late spring–early summer. +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
0 cm0 mm <br />0 m <br /> (2 cm20 mm <br />0.02 m <br />) +
2+ times as long as proximal spikes +
adventitious +
0.18 cm1.8 mm <br />0.0018 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
basal +  and proximal +
ovate;subcircular +
1.1mm;1.8mm +
cylindric +
Illustrated +  and Endemic +
1 (?) +  and 3 (?) +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
deciduous +
2-3(-4)-fid +
Carex sparganioides +
Carex sect. Phaestoglochin +
species +
rhizomatous +  and short-rhizomatous +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0.1mm +  and 0.2mm +