Cucumis kalahariensis A.Meeuse

Species

Angiosperms > Cucurbitales > Cucurbitaceae > Cucumis

Characteristics

Perennial dioecious creeper. Stems annual, branched, rather stout, angular-sulcate, minutely and sparsely hirsute when young, later becoming scabrid to subglabrous, geniculate and rooting at the nodes, up to 3 m long and 0. 5 cm in diam., internodes up to 20 cm long. Roots fibrous, 50-60 cm long, towards the base dilated to form cylindric, fusiform or sausage-shaped tuberous portions 5-20 cm long and 2-3 cm in diam., which are covered with a thin light-brown bark and contain a fleshy-spongy soft white tissue inside. Leaves somewhat greyish-green, rather rigid, secund, in outline ovate or ovate-oblong, deeply palmately 3-7-fid, on both sides at first finely setose-hispidulous, ultimately scabrid, 5-15 cm long and 3-9 cm wide; the lobes oblong to linear, acute, subacute or subapiculate, coarsely dentate to somewhat pinnatilobed; petioles rather stout, sulcate, at first finely aculeate-setose, ultimately scabrid, 1-5 cm long. Tendrils stoutish, rather short, distinctly thickened towards the base, minutely aculeate-setose, glabrescent, turning scabrid. Male flowers solitary or occasionally fasciculate, on slender, shortly setose-hispid pedicels 1-2 cm long; receptacle narrowly ampanulate, densely setose, about 7 mm long; sepals linear-subulate, setose, about 5 mm long; corolla yellow, 6-7 mm long. Female flowers solitary on pedicels 4-6 mm long and 1.5 mm thick; sepals and corolla as in the male flower, but larger, 7-9 mm and 9-15 mm respectively; ovary ellipsoid or somewhat ovoid, densely setose. Fruit ellipsoid or oblong, aculeate, variegated by irregularly bordered brownish-purple longitudinal bands on a greenish-white background, 3-5.5 cm long and 2-3 cm in diam., spines soft and rather thick, laterally compressed, somewhat uncinate, obtuse to subacute, finely mucronate, about 5 mm long. Seeds white, ovate-elliptic, 6-7 mm long, 3-4 mm wide and 1.5-2 mm thick.
More
A herb. It is a pumpkin family plant. It is a creeper that keeps growing from year to year. The stems can be 3 m long. It has a fleshy taproot. These are 5-20 cm long by 2-3 cm wide. It has a brown skin and spongy inner flesh. Leaves have lobes and teeth around the edge. The leaves are hairy. Plants are separately male and female. The flowers are small and bright yellow. The fruit are small and prickly. They have stripes along them. They are 3-6 cm long by 2-3 cm wide. The seeds are 6-7 mm long by 304 mm wide and 2 mm thick.
Leaf-lamina 6·5–12·5 × 3·5–10 cm., ovate or ovate-oblong in outline, finely setulose or hispid above and more densely so beneath, becoming scabrid, deeply palmately (3)5(7)-lobed, lobes elliptic, narrowly oblong-elliptic or lanceolate, obtuse to acute, apiculate, sinuate-dentate or sinuate-lobulate, the central much the largest.
Fruit 3–5·5 × 2–3 cm., oblong or oblong-ellipsoid, rounded at the ends, densely shortly softly spiny, green or greenish-white, longitudinally variegated with brownish-purple; spines 2–5 mm. long, laterally compressed, rather thick; fruit-stalk stout, c. 2 cm. long, slightly expanded upwards.
Female flowers solitary; pedicels (4)8–10 mm. long; ovary c. 13 × 5 mm., ellipsoid, densely setose; perianth rather larger than in male flowers, otherwise similar.
male flowers solitary or 2–3 in small fascicles; pedicels 8–10(20) mm. long. Receptacle-tube 5–7 mm. long; lobes 2·5–5 mm. long. Petals 5·5–10 mm. long, yellow.
Perennial; stems prostrate, to 3 m., sparsely setulose, rooting at nodes, arising from tuberous roots up to 1 m. below ground.
Seeds 6–7 × 3–4 × 1·5–2 mm., elliptic in outline, smooth, pallid, subcompressed.
Petioles 1–5 cm. long, aculeate-setulose, becoming scabrid.
Flowers dioecious.
Life form perennial
Growth form herb
Growth support climber
Foliage retention -
Sexuality dioecy
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 2.0
Root system fibrous-root tap-root
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

A tropical plant. It is used by the San people in Southern Africa. It needs well-drained soil. It grows in sands and clays. It grows below 1,200 m above sea level. It can grow in arid places.
More
Bushland and grassland, on Kalahari sand, at elevations up to 1,190 metres.
Light -
Soil humidity -
Soil texture 5-6
Soil acidity -
Soil nutriment -
Hardiness (USDA) 8-12

Usage

The roots are baked and eaten. The raw root is used for water. The leaves are cooked and eaten.
Uses food gene source medicinal
Edible leaves roots 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 -

Distribution

Cucumis kalahariensis world distribution map, present in Botswana, Namibia, and South Africa

Identifiers

LSID urn:lsid:ipni.org:names:292219-1
WFO ID wfo-0000628896
COL ID 329SY
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Cucumis kalahariensis