Premna velutina Gürke

Species

Angiosperms > Lamiales > Lamiaceae > Premna

Characteristics

Spreading, climbing, straggling or even sometimes ± creeping shrub or small tree 1.2–4.5 m. tall; bark white, smooth; young stems very densely spreading yellowish pubescent, later glabrescent or glabrous with pale ± corky epidermis.. Leaf-blades ovate, oblong, elliptic or almost round, 2–8 cm. long, 1.5–5 cm. wide, often ± asymmetric, rounded to acuminate at the apex, rounded to subcordate at the base, entire or serrate towards apex or for upper 1/2, sparsely yellowish pubescent above, rugulose with ultimate venation impressed, velvety golden-yellow-brown tomentose beneath, the venation closely reticulate and raised if visible; petiole 0.4–1 cm. long.. Flowers in usually flattened ± spreading panicles 2–8 cm. long, the axes densely spreading yellow-brown pubescent; peduncles 0–2 cm. long; pedicels 0.5–2 mm. long; bracts filiform, 2–3 mm. long.. Calyx cupular, pubescent, unequally 5-toothed; tube 1.5 mm. long; lobes ± 1 mm. long, 2 broader and rounder and 3 narrower and ± acute.. Corolla white or yellow, glabrous outside; tube 2.5 mm. long, densely hairy at the throat; limb unequally 4-lobed, the lobes ± 1 mm. long.. Style shortly bifid.. Fruits globose, orange to black, 3–6 mm. in diameter when dry, sitting in shallowly lobed venose sparsely pubescent cups 6 m. wide.
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Leaves opposite, shortly petiolate, very caducous; blades 1.5–8.5 × 1.3–5.7 cm, broadly elliptic or broadly ovate, ovate-oblong to suborbicular, obtuse, rounded or very shortly acuminate at the apex, rounded to subcordate or distinctly cordate at the base, entire or serrate towards the apex or in the upper half with teeth narrowly dentate and apiculate, papery, discolorous the upper surface dark green and slightly shiny, the lower surface yellowish-green or yellowish-cinereous, sparsely shortly pilose above, ± densely tomentose beneath, the main nerves beneath with tawny, antrorse, appressed hairs; petiole 0.2–1.2(2) cm long, usually less than 1/4 of the length of the blade, densely yellowish-tomentose.
Flowers usually in small terminal paniculate corymbs up to 3.5 × 4.3 cm, up to 5 cm in diameter in infructescences, the axis, branches and pedicels densely yellowish-tomentose; peduncles 0.6–1.5 cm long; pedicels 0.5–0.75 mm long.
Older branches usually leafless glabrescent with a pale corky epidermis;youngbranches ± densely yellowish tomentose, usually with the leaves clustered toward the apex and bearing a terminal inflorescence.
Drupes orange to black, c. 3.75 × 3.75 mm, subglobose, narrowing slightly towards the base, sitting in shallowly-lobed venose sparsely pubescent cups 4–6 mm in diameter formed by the fruiting calyx.
Calyx green, 1.5–2 mm long, cup-shaped, unequally 5-toothed, somewhat pilose, the teeth obtuse with the largest c. 0.75 mm long and the smaller ones c. 0.5 mm long.
A spreading straggling or scandent shrub up to c. 4 m or a small tree to c. 4 m; indumentum of spreading simple or multicellular hairs.
Corolla white or yellowish, glabrous outside, c. 3.5 mm long; tube c. 2 mm long, densely hairy at the throat; limb unequally 4-lobed.
Stamens with filaments 1.5–2 mm long and transversally oblong, c. 0.5 mm broad; anthers somewhat exserted.
Life form -
Growth form tree
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Foliage retention deciduous
Sexuality hermaphrodite
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Mature width (meter) -
Mature height (meter) 1.2 - 4.5
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Environment

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Hardiness (USDA) 9-12

Usage

Uses medicinal
Edible -
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Cultivation

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Distribution

Premna velutina world distribution map, present in Burkina Faso, Kenya, Mozambique, and Tanzania, United Republic of

Conservation status

Premna velutina threat status: Near Threatened

Identifiers

LSID urn:lsid:ipni.org:names:864469-1
WFO ID wfo-0000282888
COL ID 77X4Q
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Premna velutina