Clerodendrum buchneri Gürke

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Photo: Warren McCleland
Approximately 3.4 km upstream of Sioma town

Photo: Nicholas Wightman
Kipemba area, Kalumbila Distr., North-Western Prov.

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Synonyms:	Clerodendrum capitatum sensu J.G. Baker in F.T.A. 5: 306 (1900) Clerodendrum cuneifolium Baker Clerodendrum hockii De Wild. Clerodendrum humile Chiov. Clerodendrum impensum B. Thomas var. buchneroides B. Thomas Clerodendrum strictum Baker Siphonanthus cuneifolius Hiern Siphonanthus strictus Hiern
Common names:
Frequency:
Status:	Native
Description:	A suffrutex growing from a woody rhizomatous rootstock; stems herbaceous, 1–several, up to c. 1 m high (usually less than 30 cm), erect, usually simple, sometimes few-branched, more or less densely hispid-pubescent, with short erect hairs mixed with scattered long purplish to whitish spreading hairs. Leaves mostly opposite to subopposite, oblong-obovate to obovate or more or less broadly oblong, 5–15.5 cm long, lowermost leaves smallest, sometimes bract-like, light to dark green, somewhat discolorous, sparsely covered with short hairs on both surfaces, densest on the veins; veins more or less impressed above and prominent beneath; margin usually entire or sometimes with a few broad teeth towards the apex; petiole ascending, 0.7–3.5 cm long, slender, grooved. Inflorescence terminal, capitate, subglobose, 3.5–9 cm long, sometimes with additional flower clusters in the axils beneath; bracts maroon to purplish, elliptic to narrowly lanceolate, 1.2–3.5 cm long, pubescent outside. Calyx 1.5–2 cm long, with lobes dark purple or pale green margined with purple. Corolla sweet-scented, white or creamy-white; tube 5–7.9 cm long, with glandular hairs or ± sessile glands. Stamens exserted for c. 2.5 cm. Fruit c. 1.3 cm long and 0.8–1.3 cm wide.
Notes:	This species is similar to Clerodendrum capitatum (Willd.) Schumach. & Thonn. which is not found in Botswana. It clearly differs in being a low-growing suffrutex not a scrambling shrub or liane with spine-like modified petiole bases as well as somewhat different leaves. .
Derivation of specific name:	buchneri: After J.G. Buchner, German naturalist who collected the type specimen in Angola
Habitat:	Deciduous woodland and wooded grassland, on Kalahari Sands and sandy soils often on termite mounds, along margins of dambos and sandy roadsides.
Flowering time:
Worldwide distribution:	Angola, DRC, Tanzania, Zambia, Zimbabwe and Botswana.
Botswana distribution:	N
Growth form(s):
Endemic status:
Red data list status:
Insects associated with this species:
Spot characters:	Display spot characters for this species
Literature:	Fernandes, R. (2005). Lamiaceae (subfamilies: Viticoideae and Ajugoideae) Flora Zambesiaca 8(7) Pages 101 - 102. Phiri, P.S.M. (2005). A Checklist of Zambian Vascular Plants Southern African Botanical Diversity Network Report No. 32 Page 68. Setshogo, M.P. (2005). Preliminary checklist of the plants of Botswana. Sabonet Report no. 37. Sabonet, Pretoria and Gaborone Page 77.

Other sources of information about Clerodendrum buchneri:

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Flora of Burundi: Clerodendrum buchneri
Flora of Zambia: Clerodendrum buchneri
Flora of Zimbabwe: Clerodendrum buchneri

External websites:

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