Crotalaria praetexta Polhill

Species

Angiosperms > Fabales > Fabaceae > Crotalaria

Characteristics

Leaves mostly 3-foliolate, but with reduced and 1-foliolate leaves on abbreviated flowering branches; leaflets 7–35 × 2–13 mm, oblong-lanceolate to elliptic-oblong or obovate, appressed puberulous beneath; petiole 3–18 mm long, narrowly winged; stipules 0.
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Calyx 2–3 mm long, strigulose-puberulous, densely so on the tube, less densely on the lobe surfaces but very densely in a fringe on the lobe margins; upper lobes obliquely triangular-lanceolate, curved on the upper side, 2–3 times as long as the tube.
Erect annual 10–30 cm tall, sometimes with a few weak branches from the base, with numerous mostly suppressed flowering branches above; stem densely covered with short stiff appressed to slightly spreading hairs.
Flowers in clusters or short racemes, terminal and on much reduced 1–2 leaved branches in the axils below, also in the axils below that; bracts 0.5–1 mm long, linear; pedicel 1.5–3 mm long, without bracteoles.
Standard elliptic-obovate, yellow lined reddish-brown, tomentellous outside; wings ± as long as the keel; keel 4–5 mm long, angular, with a twisted beak.
Pod sessile, 3.5–4 mm long, ovoid-globose, appressed puberulous, 2-seeded.
Seeds 1.5–2 mm long, oblique-cordiform, smooth.
Life form annual
Growth form herb
Growth support -
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.1 - 0.3
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer rhizobia
Photosynthetic pathway c3

Environment

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

Usage

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

Cultivation

Mode -
Germination duration (days) 21 - 30
Germination temperacture (C°) 18 - 23
Germination luminosity -
Germination treatment soaking
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

Crotalaria praetexta world distribution map, present in Zambia

Identifiers

LSID urn:lsid:ipni.org:names:899638-1
WFO ID wfo-0000210913
COL ID ZNY9
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Crotalaria praetexta