Decorsea schlechteri (Harms) Verdc.

Species

Angiosperms > Fabales > Fabaceae > Decorsea

Characteristics

Stems rather slender, somewhat ridged, mostly glabrous, ± 3 m. long; flowering shoots often leafless.. Terminal leaflet rhomboid-lanceolate to triangular-ovate, the laterals similar but markedly asymmetrical, falcate, 2·2–7·5 cm. long, 0·8–3·7 cm. wide, narrowed to a rounded but mucronulate apex, or slightly emarginate, rounded at the base, with sparse short bristly hairs scattered on both surfaces and margins or glabrescent or more rarely densely pubescent; venation reticulate and prominent on both surfaces; petiole 2–6·5 cm. long; rhachis 0·4–1·6 cm. long; petiolules ± 2·5 mm. long; stipules narrowly ovate-elliptic, ± 3 mm. long.. Axis of inflorescence often much wrinkled, 0·4–1·5 cm. long, often 2–3-branched or sometimes peduncle 3–4 cm. long; pedicels 0·6–1·4 cm. long; bracts and bracteoles minute, ovate, ± 1 mm. long, ribbed, ciliate.. Calyx-tube 3–4 mm. long, glabrous; lower lobes deltoid, ± 2 mm. long, ciliate; upper pair united into a low rounded lip.. Standard blue, greenish-yellow or mostly mauve, 1·5 cm. long, 1·8 cm.wide; wings violet or pink; keel mostly pale.. Hairs in a ring around stigma clearly branched.. Pods linear, 7·5–10·5 cm. long, 5 mm. wide, curved at the tip, glabrous.. Seeds dark blackish-red or brown mottled black, longest dimension 5·5–8 mm., shorter dimension 3–4 mm., 2·5–3·2 mm. thick, somewhat keeled along the distal margin, hollowed around the hilum.. Fig. 94.
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Perennial twining herb. Stems rather slender, somewhat ridged, mostly glabrous, up to c. 3 m long; flowering shoots often leafless. Leaflets 2.2-7.5 x 0.8-3.7 cm, the terminal leaflet rhombic-lanceolate to triangular-ovate, the lateral leaflets similar but markedly asymmetrical, falcate; all leaflets narrowed to a rounded but mucronulate apex, or slightly emarginate, more rarely sharply acute, rounded at the base, with sparse short bristly hairs scattered on upper and lower surfaces and the margins, or glabrescent or more rarely densely pubescent, venation reticulate and prominent on both surfaces; petiole 2-6.5 cm long; rhachis 0.4-1.6 cm long; petiolules c. 2.5 mm long; stipules c. 3 mm long, narrowly ovate-elliptic. Inflorescence axis often much wrinkled, 0.4-1.5 cm long, often 2-3-branched or sometimes peduncle 3-4 cm long; pedicels 0.6-1.4 cm long; bracts and bracteoles minute, c. 1 mm long, ovate, ribbed, ciliate. Calyx tube 3-4 mm long, glabrous; lobes c. 2 mm long, deltate, ciliate, the upper pair united into a low rounded lip. Standard blue, greenish-yellow or mostly mauve, 1.5 x 1.8 cm; wings violet or pink; keel mostly pale. Hairs in a ring around stigma, clearly branched. Pods 7.5-12.5 cm × 5 mm, linear, curved at the tip, glabrous. Seeds dark blackish-red or brown mottled black, 5.5-8 x 3-4 x 2.5-3.2 mm, somewhat keeled along the distil margin, hollowed around the hilum.
Leaflets 2.2–7.5 × 0.8–3.7 cm, the terminal leaflet rhombic-lanceolate to triangular-ovate, the lateral leaflets similar but markedly asymmetrical, falcate; all leaflets narrowed to a rounded but mucronulate apex, or slightly emarginate, more rarely sharply acute, rounded at the base, with sparse short bristly hairs scattered on upper and lower surfaces and the margins, or glabrescent or more rarely densely pubescent, venation reticulate and prominent on both surfaces; petiole 2–6.5 cm long; rhachis 0.4–1.6 cm long; petiolules c. 2.5 mm long; stipules c. 3 mm long, narrowly ovate-elliptic.
A twining herb. It keeps growing from year to year. It climbs up to 3 m tall. The stems are slender. It grows from a large tuber. The leaves are compound. The leaves have 3 leaflets. They have leaflets along the stalk and one at the end. The leaves are broadly triangle shaped. They are 7.5 cm long by 3.5 cm wide. The flowers appear before the leaves. They are blue or pink. They are like pea flowers. They have a light yellow twisted keel. The fruit is a pod. It is narrow and 8-12 cm long by 5 mm wide. It is curved at the tip. It has a pointed beak.
Inflorescence axis often much wrinkled, 0.4–1.5 cm long, often 2–3-branched or sometimes peduncle 3–4 cm long; pedicels 0.6–1.4 cm long; bracts and bracteoles minute, c. 1 mm long, ovate, ribbed, ciliate.
Seeds dark blackish-red or brown mottled black, 5.5–8 × 3–4 × 2.5–3.2 mm, somewhat keeled along the distil margin, hollowed around the hilum.
Calyx tube 3–4 mm long, glabrous; lobes c. 2 mm long, deltate, ciliate, the upper pair united into a low rounded lip.
Stems rather slender, somewhat ridged, mostly glabrous, up to c. 3 m long; flowering shoots often leafless.
Standard blue, greenish-yellow or mostly mauve, 1.5 × 1.8 cm; wings violet or pink; keel mostly pale.
Pods 7.5–12.5 cm × 5 mm, linear, curved at the tip, glabrous.
Hairs in a ring around stigma, clearly branched.
Perennial twining herb.
Life form perennial
Growth form herb
Growth support climber
Foliage retention deciduous
Sexuality hermaphrodite
Pollination entomogamy
Spread -
Mature width (meter) -
Mature height (meter) 2.0
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer rhizobia
Photosynthetic pathway -

Environment

It is a tropical plant. It grows on gravel and Kalahari sand. It grows in hot dry woodland. In Zimbabwe it grows up to 1,200 m above sea level. It grows in grass and bush at low and medium altitudes.
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Hot, often low rainfall, areas, Kalahari Sand grasslands and scrub, and on stony slopes and hillsides, in various woodlands, scrubland and thickets; at elevations up to 1,200 metres.
Light -
Soil humidity -
Soil texture 5-6
Soil acidity -
Soil nutriment -
Hardiness (USDA) 9-12

Usage

The seeds are eaten fresh or boiled. The tubers are washed and peeled and cut into pieces then boiled or roasted. Young tubers are eaten raw.
Uses medicinal
Edible roots seeds tubers
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by seedlings.
Mode seedlings
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Decorsea schlechteri unspecified picture

Distribution

Decorsea schlechteri world distribution map, present in Botswana, Mozambique, Malawi, Tanzania, United Republic of, South Africa, Zambia, and Zimbabwe

Identifiers

LSID urn:lsid:ipni.org:names:491152-1
WFO ID wfo-0000179307
COL ID 6CFD3
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Phaseolus schlechteri Dolichos schlechteri Decorsea schlechteri