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__NOTOC__{{Plantbox
__NOTOC__{{Plantbox
| name = ''Ageratum houstonianum''
| name = ''Ageratum houstonianum''
| cultivar =
| cultivar =
}}
}}
{{edit-desc}}<!--- Type description info below this line, then delete this entire line -->
{{Inc|
Ageratum houstonianum, Mill. (A. mexicanum, Sims.) Involucral scales lance-linear, attenuate, entire, ciliate, the back finely, dense and somewhat viscidly hairy lvs. usually heart-shaped at base: heads slightly larger than in the last. Mex. B.M. 2524.—The better species and more frequent in cult.
}}
==Cultivation==
==Cultivation==
==References==
==References==
*[[Standard Cyclopedia of Horticulture]], by L. H. Bailey, MacMillan Co., 1963
<!--- xxxxx *[[Standard Cyclopedia of Horticulture]], by L. H. Bailey, MacMillan Co., 1963 -->
<!--- xxxxx *[[Standard Cyclopedia of Horticulture]], by L. H. Bailey, MacMillan Co., 1963 -->
<!--- xxxxx *Flora: The Gardener's Bible, by Sean Hogan. Global Book Publishing, 2003. ISBN 0881925381 -->
<!--- xxxxx *Flora: The Gardener's Bible, by Sean Hogan. Global Book Publishing, 2003. ISBN 0881925381 -->
