What is "plumbagineous"

Plumbagineous \Plum`ba*gin"e*ous\ (pl[u^]m`b[.a]*j[i^]n"[-e]*[u^]s), a. (Bot.) Pertaining to natural order ( Plumbagine[ae]) of gamopetalous herbs, of which Plumbago is the type. The order includes also the marsh rosemary, the thrift, and a few other genera.

a. Pertaining to the family (Plumbaginaceae) of gamopetalous herbs, of which plumbago is the type. The family includes also statice, the thrift, and a few other genera.