Carex radiata

(Wahlenberg) Small

Fl. S.E. U.S., 218. 1903.

Common names: Carex rayonnant
IllustratedEndemic
Basionym: Carex stellulata var. radiata Wahlenberg Kongl. Vetensk. Acad. Nya Handl. 24: 147. 1803
Synonyms: Carex rosea var. radiata (Wahlenberg) Dewey
Treatment appears in FNA Volume 23. Mentioned on page 288.

Plants without conspicuous rhizomes. Culms 20–80 cm, 0.8–1.5 mm wide basally, 0.4–0.5 mm wide distally. Leaves: sheaths tight, green, fronts hyaline; ligules less than 2, wider than long; widest leaf blades 1.3–1.9 mm wide. Inflorescences with 4–8 spikes, 3–7 cm × 5–7.5 mm; proximal internodes more than 2 times as long as proximal spikes; proximal bracts to 5(–10) cm; spikes with 3–8 spreading or reflexed perigynia. Pistillate scales hyaline with green midvein, ovate, 1.4–2.3 × 0.9–1.6 mm, body 1/2 length of perigynium, apex obtuse, acute, or awned. Anthers 0.8–1.3 mm. Perigynia green, faces not veined, 2.6–3.8 × 1–1.5 mm, base of body spongy, thickened, longitudinally striate adaxially, spongy region 1–1.5 mm, margins serrulate distally; beak 0.4–1 mm, apical teeth 0.1–0.2 mm. Stigmas straight or slightly twisted, 0.03–0.06 mm wide. Achenes ovate to obovate, 1.5–2 × 1–1.4 mm. 2n = 58.


Phenology: Fruiting mid–late spring.
Habitat: Mesic to wet-mesic deciduous and mixed forests, often seasonally wet areas
Elevation: 50–1000 m

Distribution

V23 489-distribution-map.jpg

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

Discussion

The name Carex rosea has frequently been misapplied to C. radiata.

Selected References

None.

Lower Taxa

None.
... more about "Carex radiata"
Peter W. Ball +
(Wahlenberg) Small +
Carex stellulata var. radiata +
Carex rayonnant +
Man. +, N.B. +, N.S. +, Ont. +, Que. +, Ala. +, Ark. +, Conn. +, Del. +, D.C. +, Ill. +, Ind. +, Iowa +, Kans. +, Ky. +, La. +, Maine +, Md. +, Mass. +, Mich. +, Minn. +, Miss. +, Mo. +, Nebr. +, N.H. +, N.J. +, N.Y. +, N.C. +, N.Dak. +, Ohio +, Okla. +, Pa. +, S.C. +, S.Dak. +, Tenn. +, Vt. +, Va. +, W.Va. +  and Wis. +
50–1000 m +
Mesic to wet-mesic deciduous and mixed forests, often seasonally wet areas +
Fruiting mid–late spring. +
Fl. S.E. U.S., +
Illustrated +  and Endemic +
Carex rosea var. radiata +
Carex radiata +
Carex sect. Phaestoglochin +
species +