- Ionactis linariifolia
Ionactis linariifolia also known as the flax-leaf ankle-aster, flaxleaf whitetop or aster [http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=250067004 Flora of North America] was previously classified by Carolus Linnaeus as Aster linariifolius, known as the stiff-leafed
aster . [http://66.102.1.104/scholar?hl=en&lr=&q=cache:3-mRtbcBuJQJ:persoon.si.edu/DCFlora/checklist/chklst1.pdf+%22Ionactis+linariifolia%22 Annotated Checklist of the Vascular Plants of the Washington - Baltimore area |page=22] Ionactis was classified as a separate genus by Edward Lee Greene in 1897. It occurs in most of eastern North America. The flowers are violet, rarely white, which is more common in others of the genus. [http://zipcodezoo.com/Plants/I/Ionactis_linariifolia/default.asp explanation on zipcodezoo.com]References
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