Class
Order
Family
Genus
Classification
Nomenclature
Scientific Name:
Cyperus sanguinolentus Vahl (1806)
Synonymy:
- ≡ Pycreus sanguinolentus (Vahl) Nees (1834)
Description
Tufted annual. Stems to 40 cm high, very slender in small plants but more rigid in larger ones, 3-angled, very leafy at base. Leaves < stems, to 2.5 mm wide, margins smooth except near tip. Involucral bracts 2–3, very widely spreading, unequal, at least the lowest >, to very much > inflorescence. Inflorescence a single head or small umbel with few very short rays. Spikelets in ovoid dark clusters, oblong or oblong-lanceolate, 4–8 × 2 mm, much compressed. Glumes not closely imbricate, ± 2 mm long, ovate, obtuse, with broad green keel and dark red-purple patch at tip and purple band inside the green margin. Stamens 3 or 2. Style-branches 2. Nut ± ½ length of glume, orbicular-obovoid, biconvex, black.
[From: Healy and Edgar (1980) Flora of New Zealand. Volume 3. as Cyperus sanguinolentus Vahl]
Biostatus
Exotic
Bibliography
Govaerts, R.; Simpson, D.A.; Bruhl, J.J.; Egorova, T.; Goetghebeur, P.; Wilson, K. 2007: World checklist of Cyperaceae, sedges. Kew Publishing, Royal Botanic Gardens, Kew.
Larridon, I.; Bauters, K.; Reynders, M.; Huygh, W.; Goetghebeur, P. 2014: Taxonomic changes in C4 Cyperus (Cypereae, Cyperoideae, Cyperaceae): combining the sedge genera Ascolepis, Kyllinga and Pycreus into Cyperus s.l.. Phytotaxa 16(1): 33–48.
