Ageratum

[,ædʒә'reitәm]

解釋/意思:

(noun.) any plant of the genus Ageratum having opposite leaves and small heads of blue or white flowers.

戴夫校對--From WordNet

解釋/意思:

(n.) A genus of plants, one species of which (A. Mexicanum) has lavender-blue flowers in dense clusters.

整理:罗伯塔