Clerodendrum johnstonii Oliv.

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Photo: Bart Wursten
Edge of hotel carpark, Serena Mountain Lodge, Mount Kenya

Photo: Bart Wursten
Road between National Park gate and Serena Mountain Lodge, Kenya

Photo: Bart Wursten
Zovo Chipolo Trail, Nyika National Park

Photo: Bart Wursten
Kaperepeza road, Nyika National Park

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Synonyms:	Clerodendrum johnstonii Oliv. var. rubrum B.Thomas Clerodendrum murigono Chiov.
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Description:	Usually a scrambling shrub with climbing branches up to 10 m long aided by paired, recurved climbing hooks; young branches with soft orange to red hairs. Leaves opposite or in whorls of three, oblong-ovate to almost round, up to 19.5 cm long, discolorous, green and sparsely hairy above, velvety and with sessile yellowish to reddish glands beneath; margin entire or irregularly crenate; petiole 1-10 cm long, articulate with the basal part often woody and forming the climbing hooks after the leaves fall. Inflorescences in dense, axillary and terminal heads up to 20 cm in diameter. Flowers creamy to white, sweetly scented, with a tube 8-10 mm long. Fruit 10-12 mm long, surrounded by the persistent, obtusely lobed, cup-like calyx, black when ripe.
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Derivation of specific name:	johnstonii: after Sir Henry (Harry) Hamilton Johnston (1858-1927), British administrator and explorer, who collected in Kenya and led a scientific expedition to Mt. Kilimanjaro. He also discovered and named the okapi in Congo.
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Worldwide distribution:	DRC, Burundi, Rwanda, Uganda, Ethiopia, Kenya, Tanzania, Malawi and Zambia.
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Spot characters:	Display spot characters for this species
Literature:	Burrows, J.E. & Willis, C.K. (eds) (2005). Plants of the Nyika Plateau Southern African Botanical Diversity Network Report No. 31 SABONET, Pretoria Page 183. as Clerodendrum johnstonii johnstonii (Includes a picture). Dowsett-Lemaire, F. (1989). The flora and phytogeography of the evergreen forests of Malawi. I: Afromontane and mid-altitude forests; Bull. Jard. Bot. Nat. Belg. 59(1/2) Page 23. Fernandes, R. (2005). Lamiaceae (subfamilies: Viticoideae and Ajugoideae) Flora Zambesiaca 8(7) Page 115.

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Flora of Burundi: Clerodendrum johnstonii
Flora of the DRC: Clerodendrum johnstonii
Flora of Malawi: Clerodendrum johnstonii
Flora of Zambia: Clerodendrum johnstonii

External websites:

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