Acrocephalus

Benth.
Source: 
SSA
Synonym(s): 
Haumaniastrum P.A.Duvign. & Plancke: 222 (1959).
Description: 
Perennial herbs or shrubs. Leaves sometimes in basal rosettes, usually narrow, entire to obscurely toothed. Inflorescences capitate, usually corymbose, subtended by coloured leafy bracts; floral bracts small. Calyx bilabiate, compressed; tube subcylindric, often arcuate; upper lip shortly 3-toothed or entire; lower lip shortly 2-toothed or entire. Corolla bilabiate, slightly longer than calyx; tube short; upper lip shortly 4-lobed; lower lip entire, flat. Stamens 4, didynamous, declinate, scarcely exserted; lower pair arising near throat, upper pair about middle of corolla; anthers 1-thecous. Style shortly bilobed. Nutlets ovoid or oblong, smooth. x = 14 (9 - 1 report) (polyploidy).
Distribution: 
Species 130, in tropical regions of the Old World; 1 species: Acrocephalus sericeus Briq., is recorded from NE Namibia including the Caprivi.
Classification: 
LAMIACEAE

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Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith