Cyperus longus L.
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Cyperus longus L. (1753)
Cyperus longus L.
Nomenclature
L.
L.
1753
ICN
Cyperus longus L.
species
Cyperus longus
Classification
Descriptions
Cyperus longus L.
Rhizome far-extending, woody, branched, to 1 cm diam. Stems to 60 cm × 2.5 mm, 3-angled, leafy at base. Leaves slightly < stems, 2-3 mm wide, double-folded, margins smooth below, finely scabrid towards tip; basal sheaths white to red, with numerous deep reddish-brown nerves, upper sheaths white. Involucral bracts 3-4, leaf-like, unequal, lowermost exceedingly long (to 50 cm). Inflorescence a compound umbel; rays several, unequal, ± filiform, to 5 cm long. Spikelets reddish- to purplish-brown in digitate clusters, linear compressed, subacute, 6-11 × ± 2 mm. Rhachilla with delicate hyaline wings from base of glumes. Glumes 2.5-3 mm long, closely imbricate, ovate-lanceolate, obtuse, reddish-brown to reddish-purple except for bright green keel, shining, nerves obscure. Stamens 3. Style-branches 3. Nut ± ⅓ length of glume trigonous.
Taxonomic concepts
Collections
Metadata
be0fa190-7fc1-40a2-9d0d-dc76ccb345d7
scientific name
Names_Plants
1 January 2000