Eriosema umtamvunense C.H.Stirt.

Species

Angiosperms > Fabales > Fabaceae > Eriosema

Characteristics

Erect perennial shrub up to 500 mm high. Rootstock horizontal, branched. Stems up to 20, branching from lower nodes, densely recurved, appressed fulvous above but less dense towards the base. Leaves trifoliolate, 57-70 x 28-40 mm, length-breadth ratio 1.6-1.9, scalloped, symmetrical, elliptic; laterals smaller, 50-65 x (19-)24-32 mm, gibbous, length-breadth ratio 1.3-1.9, asymmetrical; finely appressed hirsute above but dull green; tertiary venation visible in fresh leaves if held against the light; lower surface finely woolly grey to white with longer fulvous hairs on the primary veins, small yellow glands visible; both terminal and lateral leaflets have a hairy midrib above; lowest leaves of the plant are obovate, apiculate. Stipules 13 x 6 mm, widest at middle, free, rapidly senescent, semipatent, tip recurving, glabrous inside, pubescent outside, hairier along the margin. Petioles 3 mm long. Racemes up to 125 mm long, floriferous section 55 mm long, elongating with anthesis, 20-25-flowered. Flowers 13-14 mm long; red and yellow; bracts 8 mm long, caducous. Calyx 8 mm long, lobes equal; teeth more or less equal to the tube. Standard 13 x 9 mm; claw 3 mm long; emarginate sides recurved; bright brick red on the back, venation black, base above the claw yellow; glands present, yellow; appendages present, hooded, free from auricles. Wing petals 13 x 4 mm, cultrate, longer than the keel; orange, suffused with pink. Keel petals 12 mm long, 5 mm wide at broadest point, sparsely covered in yellow glands. Staminal sheath 10-12 mm long, free stamen geniculate. Pistil 11 mm long; ovary 5 mm long; height of curvature 4 mm high; stigma small, exserted. Nectary present. Fruits 15-16 x 10-11 mm, with 3-4 mm long beak; staminal sheath shrivelled but persistent during fruiting, densely covered in long, golden, appressed hairs. Seeds unknown.
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Erect, perennial herb or shrub, 0.2-0.5(-0.7) m high, with up to 20 stems; rootstock horizontal, branching from lower nodes, stems densely covered in short, appressed, gold-coloured hairs. Leaflets 57-70 mm long, elliptic, tip acuminate; upper surface finely appressed-hirsute with hairy midrib; lower surface woolly grey-white with gold-coloured hairs on primary veins. Flowers 13-14 mm long. Calyx 8 mm long, golden-tomentose; lobes ± equal to tube. Petals: standard red-brown with dark veining; wings orange-pink, longer than keel; keel sparsely covered in yellow glands. Flowering time Nov., Dec. Pod densely covered in long, straight, gold-coloured, appressed hairs.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.5
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months -
Fruit color
Fruiting months -
Nitrogen fixer rhizobia
Photosynthetic pathway -

Environment

Light -
Soil humidity -
Soil texture 5-6
Soil acidity -
Soil nutriment -
Hardiness (USDA) -

Usage

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

Cultivation

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

Images

Eriosema umtamvunense unspecified picture

Distribution

Eriosema umtamvunense world distribution map, present in South Africa

Identifiers

LSID urn:lsid:ipni.org:names:930424-1
WFO ID wfo-0000195544
COL ID 3B69Z
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Eriosema umtamvunense