Description
Erect herbs.
Leaves often lobed or palmate-pinnately dissected.
Stamens 4, in 2 pairs, ascending under the upper lip;
Distribution
Asia-Tropical, Europe present, temperate Asia present, tropics present
About 8 spp., mainly in temperate Asia and Europe, one introduced and sometimes cultivated in the tropics and Malesia.
Citation
LINNE 1753: Sp. Pl.: 584
KENG 1969 – In: Gard. Bull. Sing.: 97
BRIQ. 1896 – In: E. & P., Nat. Pfl. Fam. 4: 256
