The sap may irritate the skin.

The Royal Horticultural Society Horticultural Database, available at www.rhs.org.uk

Northern America, Mexico

Northern America, Northwestern U.S.A., Colorado

Northern America, South-Central U.S.A., New Mexico

Northern America, South-Central U.S.A., Texas

Northern America, Southwestern U.S.A., Arizona

Northern America, Southwestern U.S.A., Utah