Ionactis Greene. Stiff-leaved Aster.
A genus of 5 species, herbs, of North America. Ionactis has usually been included in Aster, but differs in many characters and is more closely related to Heterotheca (Nesom & Leary 1992).
Ref: Cronquist (1980); Nesom (2006s) In Flora of North America Editorial Committee (2006b); Nesom (2020h); Nesom & Leary (1992). Show full citations.
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© Richard & Teresa Ware | Ionactis linariifolia CC-BY-NC, permission granted to NCBG | Original Image ⭷
© Gary P. Fleming |