Mexic. Halvgr., 265. 1850.
Plants loosely cespitose or with solitary stems; rhizomes ascending, brown, 0–5 mm, stout or absent. Culms 21–47 cm, scabrous distally; bases (remnants of old leaves) fibrous. Leaf-blades green, shorter than culms, 2–3.5 mm wide, herbaceous to coriaceous, papillose to scabrous abaxially, papillose to slightly scabrous adaxially. Inflorescences with both staminate and pistillate spikes; peduncles of staminate spikes 1.1–10 mm; proximal nonbasal bracts leaflike, equaling or exceeding inflorescences. Spikes: proximal pistillate spikes 2–5 (basal spikes 0); cauline spikes with the proximal separated, with 4–10 perigynia; staminate spikes (5.3–) 9.6–26.2 × (1–) 1.4–3.4 mm. Scales: pistillate scales whitish or pale-brown to dark reddish-brown, with narrow to broad white margins, ovate to lanceolate, 4.2–4.5 × 1.7–2.5 mm, equaling perigynia, apex acuminate or short-awned; staminate scales ovate to obovate, 6–6.2 × 1.6–2 mm, apex obtuse or acute to acuminate or short-awned. Anthers 2.2–3.3 mm. Perigynia pale green to yellow or pale-brown, 10–25-veined to at least mid body, obovoid to globose, 3.1–4.2 × 1.5–2.4 mm, as long as wide; beak straight, pale green to pale-brown, 0.4–1.1 mm, smooth, apical teeth 0.1–0.4 mm. Stigmas 3. Achenes brown, globose, round in cross-section, 1.6–2.6 × 1.5–2.4 mm.
Phenology: Fruiting mid Jul–mid Aug.
Habitat: Open pine forests, mountain slopes, oak-fir forests, moist stream banks, steep ravines
Elevation: 600–3300 m
The two extremes in the morphologic variation in Carex turbinata are quite distinctive and may be correlated with latitude and elevation. An examination of specimens from across its range shows a continuum of variation in reproductive and vegetative characters.
No values specified.