Duosperma

Perennial herbs or shrubs. Leaves (in ours) dentate. Inflorescences of axillary dichasical cymes. Bracts and bracteoles c. as long as calyx. Calyx lobes 5, ovate. Corolla 2-lipped; upper lip 3-lobed, transversely ribbed on palate. Fertile stamens 4. Capsule with 1 seed in each loculus. Seeds borne on retinacula; with white hygroscopic hairs.

Duosperma is a genus of flowering plants belonging to the family Acanthaceae.

Its native range is Tropical and Southern Africa.

Species:

Duosperma actinotrichum (Chiov.) Vollesen Duosperma clarae Champl. Duosperma crenatum (Lindau) P.G.Mey. Duosperma cuprinum Brummitt Duosperma densiflorum (C.B.Clarke) Brummitt Duosperma dichotomum Vollesen Duosperma fanshawei Brummitt Duosperma fimbriatum Brummitt Duosperma glabratum Vollesen Duosperma grandiflorum Vollesen Duosperma kaessneri (S.Moore) Vollesen & I.Darbysh. Duosperma kilimandscharicum (Lindau) Dayton Duosperma latifolium Vollesen Duosperma livingstoniense Vollesen Duosperma longicalyx (Deflers) Vollesen Duosperma nudantherum (C.B.Clarke) Brummitt Duosperma parviflorum Hedrén & Vollesen Duosperma porotoense Vollesen Duosperma quadrangulare (Klotzsch) Brummitt Duosperma rehmannii (Schinz) Vollesen Duosperma sessilifolium (Lindau) Brummitt Duosperma stoloniferum Vollesen Duosperma subquadrangulare Vollesen Duosperma tanzaniense Vollesen Duosperma trachyphyllum (Bullock) Dayton Duosperma transvaalense (Schinz) Vollesen