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Packera millefolium (Torrey & A. Gray) W.A. Weber & Á. Löve. Blue Ridge Groundsel, Yarrowleaf Groundsel, Blue Ridge Ragwort, Yarrowleaf Ragwort. Phen: Late Apr-early Jun. Hab: Granitic domes, cliffs, and rocky woodlands, over granite, gneiss, schist, and amphibolite, and (in sw. VA) in calcareous glades and woodlands. Dist: Endemic to sw. NC, nw. SC, and ne. GA; disjunct in sw. VA (Lee Co.).

Origin/Endemic status: Endemic

Taxonomy Comments: The Lee County, VA, material needs additional assessment to determine if it is actually conspecific with P. millefolium, which seems implausible based on habitat and biogeography. The hybrid with Packera anonyma [= Packera ×memmingeri (Britton) Weakley; = Senecio ×memmingeri Britton (pro sp.)] occurs with the parents, and in some populations appears to be swamping out the rare P. millefolium (Gramling 2006). The epithet in Packera has sometimes been spelled "millefolia" (see synonymy), ignoring that this epithet is a noun in apposition (rather than an adjective) based on the pre-Linnaean genus name Millefolium (for Achillea) (Weakley et al. 2011).

Synonymy: = K3, K4, Va; = Packera millefolia (Torr. & A.Gray) W.A.Weber & Á.Löve – K1, Barkley (1999), orthographic error; = Senecio millefolium Torr. & A.Gray – C, F, RAB, S, SE1, Barkley (1978); < Packera millefolia (Torr. & A.Gray) W.A.Weber & Á.Löve – FNA20, orthographic error

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Heliophily ?: 8

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image of plant© Alan Cressler: packera millefolia, glade mountain, ellicott rock wilderness, chattahoochee national forest, rabun county, georgia 2 by Alan Cressler source | Original Image ⭷
image of plant© Alan M. Cressler | Original Image ⭷
image of plant© Gary P. Fleming | Original Image ⭷
image of plant© Gary P. Fleming | Original Image ⭷
image of plant© Gary P. Fleming | Original Image ⭷
image of plant© J.W. Hardin | Original Image ⭷


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