Crotalaria gamwelliae Baker F.

Species

Angiosperms > Fabales > Fabaceae > Crotalaria

Characteristics

Erect annual, up to 7 dm. tall, often with a number of ascending branches from the base and ultimately numerous short almost leafless flowering branches near the top.. Stem slender, shortly appressed pubescent.. Leaves mostly 3-foliolate, the upper ones 1-foliolate; leaflets oblanceolate to oblong-oblanceolate, the lower ones sometimes obovate, up to 18–30 mm. long and 3–8 mm. wide, obtuse to rounded or truncate at the apex, glabrous or with a few small scattered hairs above, finely appressed pubescent beneath; petiole ± 4–20 mm. long.. Stipules absent.. Racemes mostly pedunculate, lax to rather dense, many-flowered, and usually with other short racemes or clusters of flowers in the axils below; bracts linear, 2–3 mm. long, shorter than the pedicel; bracteoles inserted on the upper part of the pedicel, filiform, 0·5–1·5 mm. long.. Calyx 4–5 mm. long, with the tube protracted on the lower side, rather shortly appressed pubescent; upper lobes subulate-triangular, ± 2–3 times as long as the tube.. Standard elliptic-obovate, yellow, often veined brown outside, pubescent medially and apically outside; wings much shorter than the keel; keel bent at right-angles in the lower quarter, with a long very narrow twisted beak, slightly incurved at the tip, 8–11 mm. long.. Pod subsessile, subglobose-ovoid, slightly pointed, up to 4–5 mm. long, appressed pubescent, 2-seeded.. Seeds suborbicular-cordiform, ± 2 mm. across, with a prominent aril, smooth, brown.
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Leaves mostly 3-foliolate, the upper ones 1-foliolate; leaflets 10–30 × 2–10 mm, mostly linear-oblanceolate to oblong-oblanceolate, the lower ones sometimes more obovate, glabrous or nearly so above, finely appressed pubescent beneath; petiole 4–20 mm long; stipules 0.
Racemes 6–15(30) cm long, lax or upper part dense, main ones 16–40-flowered, other short racemes and clusters of flowers in the axils below; bracts 2–3 mm long, linear, shorter than the pedicel; bracteoles on upper part of the pedicel, setaceous.
Standard elliptic-obovate, yellow, often veined reddish-brown, pubescent medially and apically outside; wings shorter than the keel; keel 8–11 mm long, angular, with a narrow twisted beak, slightly incurved at the tip.
Erect annual, 30–70 cm tall, developing ascending branches from the base and ultimately many short flowering branches near the top; stem slender, appressed pubescent.
Calyx 4–5 mm long, appressed pubescent; upper lobes attenuate-triangular, c. 2–3 times as long as the tube.
Pods subsessile, 4–6 × 4 mm, subglobose-ovoid, slightly pointed, appressed pubescent, 2-seeded.
Seeds 2–3 mm long, rounded-cordiform, smooth, with a prominent aril.
Life form annual
Growth form herb
Growth support -
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.5 - 0.7
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 gamwelliae world distribution map, present in Tanzania, United Republic of and Zambia

Identifiers

LSID urn:lsid:ipni.org:names:488162-1
WFO ID wfo-0000210867
COL ID ZNHW
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Crotalaria gamwelliae