Ageratum houstonianum ?
Place-ambala cantt Month-Jan habitat-roadside Height-about 1.5 feet I think it is Ageratum conyzoides family Asteraceae Yes Ageratum conyzoides I think closer to Ageratum houstonianum as per details and keys herein. Ageratum conyzoides I hope Thanks, ..., Details are not clear due to smaller images. But I think it is more closer to Ageratum houstonianum rather than Ageratum conyzoides as per keys and details herein. Leaf base as much seen, is not cordate ... which I have found every time I met with A. houstonianum. Plus , head size is not really that big !
I wd say A. conyzoides. Thanks, … I do not agree. Pl. see details and comparative images at Ageratum Two characters are significant in differentiating these species. Leaves truncate to cordate at base, involucre bracts narrowly lanceolate, less than 1 mm broad, gradually narrowed to subulate tip 1-2 mm long in A. houstonianum. In A. conyzoides leaves are narrowed at base, involucre bracts oblong to oblong-lanceolate, suddenly narrowed at tip to less than 1 mm long point. I have downloaded and enlarged last two images, the involucre bracts also match A. conyzoides. The conflict seems to be too much long hairs on bracts and peduncle.
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# Species- Seed plants (families) > A---L (families & genera) > Ar > Asteraceae (Compositae) > Asteroideae > Eupatorieae > Ageratum (Asteroideae- Eupatorieae) >
