Tarenna luteola (Stapf) Bremek.

Species

Angiosperms > Gentianales > Rubiaceae > Tarenna

Characteristics

Inflorescence terminal on short lateral branches 0.5–10.5 cm long, occasionally with an additional 1–2 pairs of pedunculate inflorescences arising from the nodes below, sessile, congested in flowering stage, becoming lax when in fruit; primary inflorescence branches in 1–2 patent pairs, spaced along rhachis or clustered at apex beneath terminal inflorescence, 0.1–0.6 cm long, tomentose; pedicels very reduced in flowering stage, 3–8 mm long in fruit, bracteoles small, numerous, pubescent outside and with longer, denser hairs inside.
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Leaves deciduous; blades drying light green (or greenish-brown), 2.8–8.2 × 1.3–3.4 cm, oblanceolate to narrowly obovate or less often elliptic, obtuse to rounded or subacuminate and often shortly apiculate at apex, cuneate at base, papery, finely pubescent to glabrescent above, finely pubescent beneath; lateral nerves in 4–5(6) main pairs; domatia absent; petioles 1–5 mm long, densely pubescent; stipules 3–5 mm long, triangular-acuminate, pubescent outside, becoming scarious and tending to reflex when mature.
Scrambling shrub or small tree 0.6–4 m tall with whippy branches and said to be spinose at base (fide White 1952); young stems densely pubescent, covered with light tan to mid-brown bark; short patent lateral branches straight or somewhat upwardly curved.
Corolla cream-coloured to white (or ?brownish-yellow), glabrous outside; tube 2.3–5.75 mm long, cylindrical, c. 0.5–0.8 mm wide at top, sparsely hairy at throat; lobes 2–5 × c. 1.25 mm, narrowly oblong, obtuse.
Calyx densely pubescent; tube c. 1 mm long; limb-tube 0.75–1 mm long; lobes drying brown and somewhat chaffy, 0.9–1.5 × 75–0.9 mm, oblong-ovate, obtuse to rounded, sometimes slightly overlapped.
Seeds 2 per fruit, dark brown, ± hemispherical, 4–5 mm in diameter with large circular cavity, surface smooth to naked eye.
Fruit black when ripe, 6–7 mm in diameter, crowned by persistent calyx limb.
Placenta ± ovate with 1 ovule impressed near the centre.
Flowers not scented.
Life form -
Growth form tree
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
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Mature height (meter) 0.6 - 4.0
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Environment

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Hardiness (USDA) 9-12

Usage

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Edible -
Therapeutic use -
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Cultivation

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Distribution

Tarenna luteola world distribution map, present in Botswana, Cabo Verde, Mozambique, Namibia, Zambia, and Zimbabwe

Conservation status

Tarenna luteola threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:767519-1
WFO ID wfo-0000321045
COL ID 7BM3M
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Pavetta luteola Tarenna luteola