Cyperus usitatus Burch. ex Roem. & Schult.

Species

Angiosperms > Poales > Cyperaceae > Cyperus

Characteristics

Perennial herb, 0.05-0.45 m high, long-rhizomatous. Leaf blades 1.6-3.4 mm wide, flat or V-shaped. Culm scapose, 0.5-1.6 mm in diam. Inflorescence a single, terminal spike of several densely crowded spikelets, or a partly contracted simple or compound anthela of up to 7 stalked clusters. Subtending bracts 2-5, leaf-like. Spikelets laterally compressed, narrowly ovate, 6.7-15.3 x 1.5-3.3 mm, 6-13-flowered. Glumes tightly imbricate, ovate, 3.3-5.0 mm long, apex acute. Flowering time Dec.-May. Nutlet narrowly obovate, 1.7-2.2 x 0.7-1.0 mm, 3-angled, dark brown, surface minutely reticulate.
More
A herb or sedge. It keeps growing from year to year. It has runners. It grows 45 cm high. The stalks are 10-30 cm long and 5-12 mm wide and triangle shaped. The leaf blades are 5-20 cm long by 2-6 mm wide. They are flat and rather thick. The bulbs are 6-10 mm across. They have a few thin scaled. The flowers are in crowded spikes.
Cormous, deciduous, erect perennial, up to 250 mm tall. Leaf blades flat, keeled, 1-2(-3) mm wide. Stem 3-angled. Inflorescence a dense, terminal cluster of spikelets, occasionally with stalked clusters added, basal bracts several, spreading or suberect, leaf-like. Spikelets 2-2.5(-3) mm wide, dark red.
Tuberous perennial to 25 cm. Spikelets dark red.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.15 - 0.45
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

It is a subtropical plant. It grows in hot arid areas with a marked dry season. It can be in shallow, sandy and seasonally waterlogged soils. It grows between 900-2,225 m above sea level. It can grow in arid places.
Light -
Soil humidity 1-3
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 9-12

Usage

The bulb is eaten raw. It is also cooked and eaten. It is used in soups and vegetable dishes. The bulbs are bitter unless cooked.
Uses animal food food gene source medicinal
Edible bulbs roots tubers
Therapeutic use Porridge (unspecified), Root (unspecified)
Human toxicity -
Animal toxicity -

Cultivation

Mode -
Germination duration (days) 25 - 30
Germination temperacture (C°) 21 - 23
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

Cyperus usitatus world distribution map, present in Angola, Botswana, Ethiopia, Kenya, Lesotho, Namibia, Tanzania, United Republic of, Uganda, and South Africa

Identifiers

LSID urn:lsid:ipni.org:names:306268-1
WFO ID wfo-0000384505
COL ID 6C7DT
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Cyperus usitatus Cyperus bulbifex Cyperus stuhlmannii Cyperus edulis Cyperus usitatus var. stuhlmannii Cyperus usitatus subsp. usitatus Cyperus stuhlmannii

Lower taxons

Cyperus usitatus var. usitatus