<i><a href="https://en.wikipedia.org/wiki/Ageratum_conyzoides" class="extiw" title="w:Ageratum conyzoides">Ageratum conyzoides</a></i>, Billy goat weed, Chick weed, White weed, is a common tropical annual herbaceous weed. It is an erect softly hairy annual plant which grows up to a height of 2.5 feet. Oppositely arranged leaves are ovate to lance-like, coarsely rounded, and have toothed margin. Numerous pale blue or whitish flowerheads are 6 mm across, often forming dense domed to flat-topped clusters in leaf axils or end of branches. Flowers most of the year. The stem is often red and has long white hairs. The weak aromatic unpleasant smelling leaves are also covered with fine hair. The dark seeds have scales and ends in a needle-like shape. 
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In alternative medicine, ageratum is used against epilepsy and wounds, also used as an insect repellent.
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<a href="//commons.wikimedia.org/wiki/User:Jkadavoor" title="User:Jkadavoor">Jeevan Jose, Kerala, India</a></div>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>