ageratum

(redirected from Whiteweed)
Also found in: Dictionary, Thesaurus, Wikipedia.
Related to Whiteweed: White wedding, White rhino

ageratum

(ăj'ərā`təm, əjĕr`ə–) [Gr.,=unaging], any plant of the genus Ageratum, tropical American annuals of the family Asteraceae (asteraster
[Gr.,=star], common name for the Asteraceae (Compositae), the aster family, in North America, name for plants of the genus Aster, sometimes called wild asters, and for a related plant more correctly called China aster (Callistephus chinensis
..... Click the link for more information.
 family). The commonly cultivated species is the Mexican A. houstonianum, with thick terminal clusters of blue flowers. The similar mistflower, a Eupatorium (see bonesetboneset
or thoroughwort
, perennial North American herb (Eupatorium perfoliatum) of the family Asteraceae (aster family), having terminal clusters of small, chiefly white blossoms.
..... Click the link for more information.
), is a perennial sometimes called hardy ageratum. Ageratum is classified in the division MagnoliophytaMagnoliophyta
, division of the plant kingdom consisting of those organisms commonly called the flowering plants, or angiosperms. The angiosperms have leaves, stems, and roots, and vascular, or conducting, tissue (xylem and phloem).
..... Click the link for more information.
, class Magnoliopsida, order Asterales, family Asteraceae.