Biology, conservation, and geographical ecology of plant taxa endemic to cedar (limestone) glades of unglaciated eastern United States

Distribution map of cedar glades in southeastern United States. Each symbol represents all cedar glades in a county. ()Outer Bluegrass, () Pennyroyal Plain, () Central Basin, () Western Valley, () Tennessee Valley and Little Mountain, () Moulton Valley, () Sequatchie Valley, () Ridge and Valley.
	A lebanon limestone cedar glade in Cedars of Lebanon State Forest in the Central Basin of Tennessee.
Echinacea tennesseensis, a federally-endangered species endemic to the cedarglades of the Central Basin of Middle Tennessee.
	Geographical distribution of the 13 known population sites of Solidago shortii. In the top part of the figure, the triangle is for the population that was extirpated from Rock Island, Jefferson Co., and circles are for extant populations in Fleming, Nicholas, and Robertson cos. Bottom part of figure is a detailed distribution map of the 13 extant populations.
Plants of Solidago shortii growing on top of a high ledge of Eden Shale along New U.S. 68 in Nicholas County, Kentucky. This is population number 12, one of the 13 known population sites for this federally-endangered species (see map above).