Xyris involucrata Nees

Species

Angiosperms > Poales > Xyridaceae > Xyris

Characteristics

Short-lived, mostly tufted, smoothish herbs, 20-60 cm high; stem short. Leaves in a fan, 10-30 cm, sheath at least as long as blade, entire, keeled, base castaneous, ligule lacking, blade flattened, margins white-ciliate. Scapes rigid, distally flattened, 3-4 mm wide, margins winged, white-ciliate; spikes hemispheric to broadly ovoid or subglobose, 0.5-1 cm, bracts numerous in a tight spiral, outer ones forming a leafy involucre, these bracts with keel and margins ciliate, inner empty bracts abruptly smaller, grading to slightly shorter flowering bracts, these firm, rhombic to oblong-obovate, 4-5 mm, tips acute or short-acuminate, often villosulous, back shallowly convex with a large, red-brown dorsal area. Lateral sepals free, subequilateral, curved, ca. 3 mm, blunt, keel reddish-ciliate from below middle to apex; petals elliptic, 4-5 mm; staminodes bearded; anthers ca. 1.5 mm. Capsule ca. 2 mm, placentation basal, valves eseptate; seeds ellipsoid-cylindric, 0.5-0.6 mm, dark amber.
Life form perennial
Growth form herb
Growth support -
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.2 - 0.6
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
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Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 10-12

Usage

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

Cultivation

Mode -
Germination duration (days) -
Germination temperacture (C°) -
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Optimum temperature (C°) -
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Vigor -
Productivity -

Distribution

Xyris involucrata world distribution map, present in Brazil, Colombia, Guyana, Suriname, and Venezuela (Bolivarian Republic of)

Identifiers

LSID urn:lsid:ipni.org:names:871517-1
WFO ID wfo-0000611609
COL ID 5CPLF
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Xyris involucrata Xyris asterocephala