Phyla Lour.
Mat-forming, unarmed herbs with prostrate, creeping stems. Lvs opposite, toothed or lobed, with medifixed hairs. Infl. a dense, subglobose to cylindric, axillary spike; fls sessile, small, bracteate. Calyx 2-lobed, divided almost to base, ± accrescent. Corolla limb 4-lobed, with 2 unequal lips; tube > calyx, straight. Stamens 4, included, didynamous. Ovary 2-celled, each cell with 1 ovule. Style included. Fr. dry, separating into 2 nutlets.
c. 10 spp., N. and C. America. Naturalised sp. 1.
