1. Boerhavia
L. (spiderling, wine flower)
Three to 30
species, widespread in tropical and warm-temperate regions around the world,
especially the southwestern U.S. and adjacent arid and seasonally dry regions
of Mexico.
Boerhavia is in need of a thorough taxonomic
revision. The generic name is often incorrectly spelled Boerhaavia in
the older literature (Bogle, 1974).