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Genus :

AERVA

Family :

AMARANTHACEAE

Species of this Genus

Description


Erect, straggling or scrambling herbs or undershrubs. Leaves simple, usually alternate or opposite. Inflorescence axillary and terminal spikes. Flowers bisexual or unisexual, solitary in the axil of a small persistent bract, subtended by 2 bracteoles. Tepals 5, rarely 4-lobed, free, equal or the outer wider, all or the inner woolly, 1 or more nerved. Stamens usually 5, filaments at the base connate in a short cup, free parts alternating with shorter subulate pseudostaminodes. Ovary ovoid or subglobose, 1-celled, with a long funicle and solitary pendent ovule, stigma capitate or 2-fid. Utricle much compressed, indehiscent or bursting irregularly. Seeds reniform, shining black, reticulate at the margin.

Key to the species

Serial Key Reference
1a. Erect herbs; leaves alternate, elliptic or obovate, densely lanate with whitish or yellowish hairs; spikes cylindrical A. lanata
1b. Straggling or subscandent herbs; leaves alternate and opposite, elliptic-oblong, without whitish or yellowish hairs; spikes pyramidal A. sanguinolenta