Antirrhinum L.
Herbs or small subshrubs, erect or suberect. Lvs usually opposite above and alternate below, simple, entire, pinnately veined. Infl. a terminal bracteate raceme, or fls solitary and axillary. Calyx deeply and ± equally 5-lobed. Corolla strongly zygomorphic; tube gibbous at base abaxially (appearing oblique), otherwise ± cylindric; limb 2-lipped; upper lip 2-lobed; lower lip 3-lobed with a pouch closing the throat. Stamens 4, included. Capsule asymmetric with 2 unequal loculi, the longer adaxial loculus opening by 1 apical pore. Seeds numerous, reticulate-rugose, not winged.
Key
c. 40 spp., mainly Mediterranean region, occasionally in W. and C. Europe, few in W. North America. Naturalised spp. 2.
Fls of both naturalised spp. are illustrated in Fig. 108.