The order contains about 250 species, chiefly natives of the north temperate zone and the mountains of the tropics.
Veratrum is an alpine genus of the north temperate zone.
It is found in pools and ditches in the British Isles, and is widely distributed in the north temperate zone.
It is a small, twiggy, resinous fragrant shrub found on bogs and moors in the British Islands, and widely distributed in the north temperate zone.
The genus, which gives the name to the natural order Tiliaceae, contains about ten species of trees, natives of the north temperate zone.