Pacific Island Ecosystems at Risk (PIER)

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Grewia micrantha
Bojer, Malvaceae
No images for this taxon

Present on Pacific Islands?  yes

Primarily a threat at high elevations?  no

Risk assessment results:  Evaluate, score: 5 (Go to the risk assessment)

Common name(s): [more details]

English: golden-fruit raisin

Habit:  shrub/tree

Description:  "Shrub or small tree to 7 m tall; young branches coarsely ferruginous-pubescent. Leaves elliptic to ovate-elliptic, 2.3-8.6 cm long, 1.3-3.8 cm wide, acute at the apex, rounded and very asymmetric at the base, margin clearly sharply serrate, ± glabrous to scattered minutely pubescent above especially when young, densely whitish pubescent with brownish veins beneath; petiole 2-8 mm long, densely pubescent, sometimes coarsely ferruginously so; stipules subulate to ovate, up to 7 mm long. Inflorescence a (1-) 3 (-5)-flowered cyme, 1-3 in a leaf axil, the axes densely stellate-pubescent; bracts ovate to ovate-lanceolate, up to 6 mm long, entire, bifid or trifid; peduncles 6-15 mm long; pedicels 4-11 mm long. Flowers yellow; sepals 6-11 mm long, grey-green outside, yellow to orange-red inside; petals oblong to obovate-oblong, 4-7 mm long, 1.5-2 mm wide, acute or slightly bifid at the apex, yellow to orange. Androgynophore ± absent or up to 1.5 mm long, glabrous, densely hairy at the apex; stamens 5-6 mm long; ovary 1-1.5 mm long, densely hairy; style 5-6 mm long. Fruit 2-lobed, or less often unlobed by abortion, the lobes 5-7 mm long, 4-6 mm in diameter, shortly stellate-hairy"  (Flora of Tropical East Africa on JSTOR Plant Science).

"A small, shrubby tree with drooping branches. Branches often with pale lenticels. Leaves ovate-oblong or elliptic, 3-9 cm long, 3-veined from the base, hairless or sparsely hairy above, with dense white hairs below and tufts of brown hairs on the veins; base asymmetric; margin toothed. Flowers yellow, c. 2 cm in diameter, in few-flowered, axillary heads, petals shorter and deeper colour than sepals. Fruit spherical, deeply 2-lobed, or 1-lobed by abortion, each lobe c. 7 mm in diameter, pubescent, yellowish"  (Flora of Zimbabwe online).

Habitat/ecology:  In Zimbabwe (native), "in open deciduous woodland"  (Flora of Zimbabwe online).

Propagation:  Seed

Native range:  "Kenya, Tanzania, Malawi, Mozambique and Zimbabwe. Also possibly in Madagascar"  (Flora of Zimbabwe online).


Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
State of Hawaii
Hawaiian Islands
O‘ahu Island introduced
Lau, Alex/Frohlich, Danielle (2012) (pp. 22-23)
Vouchers cited: OED 2009040903 (BISH), OED 2009063001 (BISH)

Control:  If you know of control methods for Grewia micrantha, please let us know.

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This page was created on 26 OCT 2012 and was last updated on 30 OCT 2012.