Grewia avellana Hiern

Species

Angiosperms > Malvales > Malvaceae > Grewia

Characteristics

Rounded bush with yellowish brown, densely pubescent branchlets, glabrescent and dark brown with age. Leaf-blade 20-45 x 15-30 mm, elliptic to ovate-elliptic, obtuse or acute at the apex, rounded at the base, crenate-dentate, softly pubescent on both sides; petiole up to 2.5 mm long, densely pubescent. Inflorescences terminal and leaf-opposed, 2-3 flowered; peduncles densely pubescent, up to 10 mm long; pedicels similar, 2-3 mm long; bracts pubescent, divided into 2-3 filiform segments, up to 10 mm long. Sepals up to 17 mm long, linear-lanceolate, acute at the apex, greenish and tomentellous outside, white and glabrous inside. Petals white, about 2-3 mm long, with a shortly triangular lamina and a nectariferous claw larger and wider than the lamina, circumvillous within and ledged above. Androgynophore about 1.5 mm tall, glabrous at the base, pubescent at the apex at the insertion of the stamens but not elongated. Ovary villous, 4-lobed; style about 10 mm long, glabrous; stigma-lobes broad. Fruit up to 25 mm in diam., deeply 4-lobed, blackish when ripe, rather fleshy, very sparsely setulose.
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A shrub. It grows 1.5 m high. It has several stems. The small branches have a covering of yellowish-brown hairs. The leaf blade is 2-5 mm long by 2-3 mm wide. They are narrowly oval. There are rounded teeth along the edge. There are soft hairs on both surfaces. The flowers are white. Normally 2-3 flowers occur together. The fruit have 4 lobes and are red. They are 2.5 cm across.
Leaf-lamina 2–4·5 mm. × 1·5–3 cm., elliptic to ovate-elliptic, obtuse or acute at the apex, margin crenate-dentate, rounded at the base, softly pubescent on both surfaces; petiole up to 2·5 mm. long, densely pubescent.
Inflorescences terminal and leaf-opposed, 2–3-flowered; peduncles up to 10 mm. long, densely pubescent; pedicels similar, 2–3 mm. long; bracts up to 10 mm. long, pubescent, divided into 2–3 filiform segments.
Petals white, c. 2–3 mm. long, with a shortly triangular lamina and a nectariferous claw larger and wider than the lamina circumvillous within and ledged above.
Androgynophore c. 1·5 mm. long, glabrous at the base, pubescent at the apex at the insertion of the stamens but not elongated.
Sepals up to 17 mm. long, linear-lanceolate, acute at the apex, greenish and tomentellous outside, white and glabrous inside.
Fruit blackish when ripe, up to 2·5 cm. in diam., deeply 4-lobed, rather fleshy, very sparsely setulose.
Rounded bush with yellowish-brown densely pubescent branchlets, glabrescent and dark brown with age.
Shrub, 1 m high. Bracts trifid. Petal lamina 2 mm long ana shortly triangular. Flowers white.
Ovary 4-lobed, villous; style c. 10 mm. long, glabrous; stigma-lobes broad.
Life form -
Growth form shrub
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 1.25
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
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Fruit color
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Nitrogen fixer -
Photosynthetic pathway -

Environment

A tropical plant. It grows in low rainfall woodland. It is often on Kalahari sands. It grows between 885-1,220 m above sea level. It can tolerate shade. It can grow in arid places.
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An understorey plant in woodland in dry areas, often found with Baikiaea plurijuga on Kalahari sand; at elevations around 1,150 metres.
Light -
Soil humidity 1-3
Soil texture 5-6
Soil acidity -
Soil nutriment -
Hardiness (USDA) 9-12

Usage

The fruit are eaten raw. They are also pounded and used to make beer.
Uses animal food environmental use food gene source material medicinal
Edible fruits
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

It can be cut back and will re-grow.
Mode cuttings seedlings
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment soaking
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Grewia avellana unspecified picture

Distribution

Grewia avellana world distribution map, present in Angola, Botswana, Namibia, South Africa, Zambia, and Zimbabwe

Identifiers

LSID urn:lsid:ipni.org:names:834071-1
WFO ID wfo-0000709753
COL ID 3HD4R
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Grewia avellana Grewia hydrophila Grewia perennans Grewia calycina