Figure 7. Center, Erigeron strigosus var. calcicola, late autumnal (post light frosts) aspect with overwintering basal rosettes well developed (indicated by arrows); Marshall County, Tennessee, 27 October 1992. Upper left, detail from pressed specimen (Morgan Co., Alabama, A. 12444, US) of var. calcicola, with multiple rhizomes, each terminated by a rosette (scale at bottom in 1 cm intervals). Upper right, much narrower rosette leaves of var. dolomiticola (in prostrate, winter condition); Bibb County, Alabama, 29 December 1992.