Pycreus nigricans C.B.Clarke

Species

Angiosperms > Poales > Cyperaceae > Pycreus

Characteristics

Perennial herb, tufted, up to 0.6 m high, old leaf sheaths persisting as soft brown to black fibres at base of plant. Leaf blades shorter than culm, ± 0.8 mm in diam., semi-terete (± C-shaped. Culm scapose, 3-angled, 0.8-1.0 mm in diam. Inflorescence head-like, of 2-8 sessile or subsessile spikelets. Subtending bracts 3, lowest longer than inflorescence, erect to suberect, leaf-like (wiry. Spikelets ± compressed, of variable length in same inflorescence, ovate-lanceolate, 8-16 x 4-5 mm. Glumes imbricate, lanceolate, 4-5 mm long, keel non-excurrent. Flowering time Sept., Feb. Nutlet broadly obovate, incl. beak 1.3-1.8 x 1 mm, biconvex, dark reddish brown to ± black, surface minutely reticulate.
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C. radice valide fibrosa, culmo basi rudimentis foliorum emortuormn dense obsito, tenerrimo, triquetro; foliis radicalibus subsetaceis, culmum subaequantibus, margine scabris, involucro diphyllo, superante spiculas 5-6 distichas, 8-10 floras, ovatas; squamis ovatis, obtusis, glabris, fusco-nigris; carina tenui, albescente-viridi, achenio oblongo.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.6
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity 4-6
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) -

Usage

Uses -
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Mode -
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

Pycreus nigricans world distribution map, present in South Africa

Identifiers

LSID urn:lsid:ipni.org:names:311717-1
WFO ID wfo-0000506815
COL ID 78QM8
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Pycreus nigricans Cyperus nigricans var. simulans Pycreus nigricans var. simulans Pycreus vavavatensis var. simulans Cyperus nigricans var. firmior