asclepiadaceous

from WordNet (r) 3.0 (2006)

asclepiadaceous
    adj 1: of or relating to plants of the milkweed family

from The Collaborative International Dictionary of English v.0.48

Asclepiadaceous \As*cle`pi*a*da"ceous\, a. [See {Asclepias}.]
   (Bot.)
   Of, pertaining to, or resembling, plants of the Milkweed
   family.
   [1913 Webster]