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2 807642 Plectranthus welwitschii (Briq.) Codd [80 696001 Neomuellera welwitschii Briq.]
I.B. Pole-Evans, E.P. Phillips, R.A. Dyer, L.E. Codd, Fl. Pl. S. Afr., vol. 42 : t. 1646 (1973) [March]
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