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Genus :


Family :



Herbs, sometimes shrubs. Stem and branches softly pubescent or woolly. Flowers in axillary whorls or forming a loose terminal spicate or paniculate inflorescence. Calyx ovoid or tubular-campanulate, straight, 10-nerved, almost equally 5-toothed. Corolla tube short, annulate within, upper lip short, entire and erect, lower lip 3-lobed, broad and patent, mid-lobe retuse or notched. Stamens exserted, in 2 pairs, those of lower pair often longer, anthers of upper pair sterile, of lower pair only one cell fertile. Disk equal-sided. Styles subequally 2-fid. Nutlets smooth, flattened, bluntly angular with a prominent scar on the ventral surface.

Key to the species

Serial Key Reference
1a. Stem acutely triangular; leaves broadly ovate; nutlets black A. indica
1b. Stem terete; leaves oblong-lanceolate; nutlets pale brown A. malabarica