Dentella 小牙草屬
型態特徵
Annual or perennial herbs; stems slender, prostrate, much branched, often forming dense cushions. Leaves without conspicuous lateral veins and veinlets, subsessile or short petiolate; stipules interpetiolar, entire, adnate at base of petioles. Flowers solitary, terminal or in one axil of a pair at alternate nodes and in forks of branches, bisexual; bracts absent; calyx tubular, 5-ribbed, deeply divided, persistent in fruit; corolla funnelform, white, hairy in throat; lobes 2 or 3, induplicate-valvate; stamens 5, filaments adnate slightly above base of corolla tube; ovary 2–4-celled, ovules numerous per cell, style 2-branched, branches filiform, with stigmatic glands on all surfaces; fruit a dry, indehiscent coccus; seeds angular, reticulate.
About 10 species in southeast Asia and Australia; 1 species in Taiwan.
