Rytigynia kiwuensis Robyns

Species

Angiosperms > Gentianales > Rubiaceae > Rytigynia

Characteristics

Shrub 1–2.4 m. tall, much branched; stems glabrous to sparsely to ± densely pubescent above with spreading ferruginous hairs, the older stems dark purplish grey, ridged and lenticellate, glabrescent; branches opposite or ternate.. Leaf-blades oblong-elliptic, 2–10.5 cm. long, 0.8–4 cm. wide, acuminate at the apex, the actual acumen mostly narrowly rounded at the tip, broadly cuneate to rounded at the base, discolorous, shortly pubescent above, more densely hairy beneath, particularly on the venation with longer, softer, grey or ferruginous hairs, usually ± velvety; petiole 2–7 mm. long, densely pubesent; stipules ovate, 3–5 mm. long, ± connate, densely ferruginous pubescent outside, long pilose inside, with slightly subapical subulate appendage 3–6 mm. long, ± persistent.. Flowers in several-flowered dense fascicles ± forming verticils at the nodes; peduncles obsolete; pedicels 1–2(–3) mm. long.. Calyx pubescent or ± glabrous; tube campanulate, 1.2 mm. long; limb brown, glabrous, ± scarious, ± 1 mm. long, divided into triangular acuminate teeth 0.5 mm. long.. Buds obovoid, obtuse or ± acuminate, glabrous.. Corolla white, cream, yellow or greenish; tube 2.5–3.5 mm. long, glabrous inside; lobes ovate, 2–3.5 mm. long, 1–1.2 mm. wide, acute but without appendages.. Ovary 2-locular; style ± 3.5 mm. long, thickened below; stigmatic club ellipsoid, 1.2 mm. long, sulcate beneath, apically bilobed.. Fruits compressed-subglobose, 8 mm. long, 9–10 mm. wide (10 × 12 in life), 4 mm. thick, with (1–)2 pyrenes; pyrenes ± reniform, 7 × 4.5 × 4 mm., rugulose.
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Growth form shrub
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Foliage retention deciduous
Sexuality hermaphrodite
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Mature height (meter) 1.0 - 2.4
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Environment

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Hardiness (USDA) 9-12

Usage

Uses medicinal
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Cultivation

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Distribution

Rytigynia kiwuensis world distribution map, present in Burkina Faso, Rwanda, and Uganda

Conservation status

Rytigynia kiwuensis threat status: Near Threatened

Identifiers

LSID urn:lsid:ipni.org:names:765739-1
WFO ID wfo-0000299167
COL ID 78Z9W
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Vangueria kiwuensis Rytigynia kiwuensis