Cyperus spectabilis
Novi Provent., 15. 1818.
Herbs, perennial, rhizomatous. Culms trigonous, (12–) 30–80 (–90) cm × 0.7–1.7 mm, glabrous or nearly so. Leaves flat to V-shaped, 20–45 cm × 2–4 mm, margins and keel minutely scabridulous. Inflorescences: spike 1, loosely ovoid to ovoid-ellipsoid, (1.5–) 2.5–7 × (1–) 1.5–3.5 cm; rays 1–4, 1–15 cm; rachis 1–2 cm; bracts 2–4, oblique or ascending, 1–15 (–24) cm × 0.4–3.5 mm, keel, margins scabrid; rachilla ± deciduous, wingless. Spikelets (3–) 8–40, linear, compressed-quadrangular, 8–18 × (2.4–) 2.8–4 mm; floral scales deciduous, (2–) 4–12, laterally light-brown to reddish-brown, medially green or light-brown, laterally 2–3-ribbed, oblongovate, 1.6–2.6 × (1.5–) 1.6–2.2 (–2.4) mm, apex obtuse, sometimes mucronulate, medially glabrous. Flowers: anthers 0.4–0.6 mm; styles 0.3–0.6 mm; stigmas 0.6–1 mm. Achenes brownish, stipitate, ellipsoid, 1.6–2 × (0.7–) 0.9–1 mm, stipe whitish, 0.1–0.2 mm, apex obtuse, slightly apiculate, surfaces papillose.
Phenology: Fruiting summer.
Habitat: Arroyos, riverbanks, clearings in montane forests
Elevation: 100–1300 m
Distribution
Ariz., Tex., Mexico
Discussion
Selected References
None.
Lower Taxa
"shortened" is not a number.