Buchnera quadrifaria Baker

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Photo: Bart Wursten
Chelinda road before Chozi turn-off, Nyika National Park

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Description:	Erect annual herb, 20–70 cm. tall; stems usually simple, quadrangular, mostly hairless, occasionally shortly pubescent just below the leaves, or scabrid on the angles. Leaves sparse, alternate or opposite, subulate or linear, 5–14 mm long; margin entire, broader elliptic basal leaves sometimes present. Inflorescence a terminal spikes 10–27 mm long, densely compacted, quadrangular. Bracts broadly ovate to elliptic-rhombic, 3.5–5 mm long, hairless or minutely granular-glandular. Calyx 4–5 mm. long, 4-lobed, hairless; lobes subulate-lanceolate, 3–4 mm long, hairless except for a few small hairs on margins. Corolla blue to mauve or purple or white; tube up to 8 mm long, hairless or glandular, hairy in the throat; lobes 1.5–2.5 mm wide, upper lobes elliptic-obovate, lower lobes oblong. Capsule broadly ellipsoid, 2.5 mm long, hairless.
Type location:	Zambia
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Worldwide distribution:	DRC, Burundi, Tanzania, Malawi and Zambia
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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 264. Ntore, S. & al. (2024). Checklist of the vascular plants of Burundi Page 181. Philcox, D. (1990). Scrophulariaceae Flora Zambesiaca 8(2) Page 103. Phiri, P.S.M. (2005). A Checklist of Zambian Vascular Plants Southern African Botanical Diversity Network Report No. 32 Page 96.

Other sources of information about Buchnera quadrifaria:

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Flora of Malawi: Buchnera quadrifaria
Flora of Zambia: Buchnera quadrifaria

External websites:

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