Raphionacme madiensis S. Moore

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Chinyakwaremba, Vumba

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Synonyms:	Raphionacme wilczekiana Germain
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Description:	Perennial herb, up to 20 cm high, growing from a sub-spherical tuber, up to 16 cm in diameter. Stems with much milky sap, 1-several, 10-16 cm long, erect to spreading, somewhat roughly hairy. Leaves opposite, more or less narrowly ovate-elliptic, ovate or obovate, 7-14.5 cm long, green above, paler below, finely velvety with denser indumentum on the much paler veins, wrinkled; margin wavy; petiole 5-20 mm long. Flowers in axillary and terminal, many-flowered heads, more or less roughly hairy. Corolla lobes spreading, oblong-ovate to oblong-triangular, 5-7 mm long, dull green to whitish-green with brown, pink, magenta or violet streaks, tips or margins. Corona lobes apically 3-segmented; central segment 5-7 mm long, linear to filiform; lateral segments 2-3 mm long, hairless or papillose. Fruit a single erect follicle, ovoid, 4.5-6 cm long, tapering.
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Derivation of specific name:	madiensis: of Madi in Uganda, where the type specimen was collected.
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Flowering time:	Sep - Jan
Worldwide distribution:	Angola, Burundi, DRC, Rwanda, Uganda, Kenya, Tanzania, Zambia and Zimbabwe.
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Literature:	Goyder, D.J., Gilbert, M.G. & Venter, H.J.T. (2020). Apocynaceae (Part 2) Flora Zambesiaca 7(2) Page 39. Venter, H.J.T. (2009). A Taxonomic revision of Raphionacme (Apocynaceae: Periplocoideae) South African Journal of Botany 75(2) Pages 327 - 330. (Includes a picture).

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Flora of Zambia: Raphionacme madiensis
Flora of Zimbabwe: Raphionacme madiensis

External websites:

African Plants: A Photo Guide (Senckenberg): Raphionacme madiensis
BHL (Biodiversity Heritage Library): Raphionacme madiensis
EOL (Encyclopedia of Life): Raphionacme madiensis
GBIF (Global Biodiversity Information Facility): Raphionacme madiensis
Google: Web - Images - Scholar
iNaturalist: Raphionacme madiensis
IPNI (International Plant Names Index): Raphionacme madiensis
JSTOR Plant Science: Raphionacme madiensis
Mansfeld World Database of Agricultural and Horticultural Crops: Raphionacme madiensis
Plants of the World Online: Raphionacme madiensis
Tropicos: Raphionacme madiensis
Wikipedia: Raphionacme madiensis