Diagnostic Characteristics
Depressed and matted plant with all alternate flat and dilated leaves (Strausbaugh and Core, 1978).
Habitat
Sandstone, shale and limestone outcroppings with southern aspects, may be damp or enclosed by the canopy; basic/circumneutral soils; 800-1150 ft elevation; associated with Allium cernuum, Arabis lyrata, Campanula divaricata, Carya glabra, C. pallida, Celtis occidentalis, Cheilanthes lanosa, Chionanthus virginicus, Dodecatheon media, Draba ramosissima, Fraxinus americana, Heuchera americana, Houstonia longifolia, Juniperus virginiana, Krigia virginica, K. montana, Opuntia humifusa, Pinus virginiana, Quercus sp., Senecio anonymus, S. millefolium, Talinum teretifolium, Vaccinium pallidum, V. Stamineum, and Woodsia obtusa.
Ecology
MD -- Sedum glaucophyllum occurs along wet cracks in limestone cliffs. These cliffs have southern aspects and may be shaded to semi-open. They are generally xeric. Elevations range from 820-1150 ft. Campanula rotundifolia is an associated species.
NC -- Occurrences of this species are on rocky steep slopes of shale and gravel. The soils are basic or circumneutral. Associated plant species include Allium cernuum, Arabis lyrata, Campanula divaricata, Carya glabra, C. pallida, Cheilanthes lanosa, Fraxinus americana, Heuchera americana, Houstonia longifolia var. compacta, Juniperus virginiana, Krigia virginica, Opuntia humifusa, Pinus virginiana, Quercus spp. Saxifraga virginiensis, Senecio anonymous, Talinum teretifolium, and Woodsia obtusa.
VA -- This species occurs on shale and limestone outcroppings.
WV -- Damp calcareous rocks in the mountain counties of the state
Reproduction
This species reproduces vegetatively (stems and leaves?) but will also flower vigorously and set seed. Diploid plants have greater seed viability than the polyploid varieties. In the field noted pollinating species included small bees (Dialictus and Ceratina) and a beetle of the family Alleculidae (Clausen, 1975; E. Thompson, pers. comm., 1996).