Crotalaria tristis Polhill

Species

Angiosperms > Fabales > Fabaceae > Crotalaria

Characteristics

Leaves 3-foliolate, uppermost sometimes very reduced in size; leaflets mostly 2–5 × 0.8–1.5 cm, oblanceolate to narrowly elliptic, dull-coloured with a short rather dense appressed pubescence on both surfaces; petioles 1–3 mm long; stipules inconspicuous.
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Calyx 6–8 mm long, densely appressed puberulous; upper lobes on either side oblong, obliquely truncate, coherent with the short bluntly triangular lateral lobe, shorter than the tube.
Racemes laxly few-flowered, sometimes aggregated into pseudopanicles by reduction of upper lateral flowering branches; bracts up to 2 mm long, linear; bracteoles very small.
Standard oblate, yellow, shaded brown and tomentellous outside; wings shorter than the keel; keel 1–1.2 cm long, semicircular, crested behind the short beak.
Pod including the 5–7 mm long stipe c. 2.5 cm long, narrowly oblong-clavate, rather densely appressed pubescent, 10–12-seeded.
Bushy shrub, up to 1.3 m tall, dullish tomentose on the branches.
Seeds 3.5–4 mm long, oblique-cordiform, smooth, pale yellow.
Life form perennial
Growth form shrub
Growth support -
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 1.3
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 tristis world distribution map, present in Zambia

Identifiers

LSID urn:lsid:ipni.org:names:899646-1
WFO ID wfo-0000207776
COL ID ZP7V
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Crotalaria tristis