Species of flowering plant
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Phlox glaberrima, commonly called smooth phlox and sometimes marsh phlox, is a species of flowering plant in the phlox family. It is native to the Midwestern and Southeastern United States where it is found in moist to wet areas. It can be found in both prairies and forests, where it is an indicator of high quality habitat.
The relationships between "Phlox glaberrima", "Phlox carolina", and "Phlox maculata" are particularly unclear. There may be hybridization, or an undescribed third species that resembles an intermediate. As of 2014,[ [update]] the phylogenetic relationships of this group of "Phlox" were under review, with variations in the ""Phlox carolina–glaberrima" complex...among the most difficult phlox plants to positively identify".
Botanist Edgar T. Wherry (1955) recognized three subspecies, subsp. "glaberrima" in its eastern range, subsp. "interior" of the Plains (the Wabash smooth phlox) and subsp. "triflora" ( ;templatestyles src="Template:Tooltip/styles.css" / ;syn. "P. triflora", the three-flower smooth phlox) in the South, but Locklear (2012) only two, incorporating subsp. triflora with subsp. glaberrima.
The "glaberrima" and "interior" variations, along with other taxa in the "P. carolina–glaberrima" complex and "P. maculata", are frequently cultivated as ornamental landscape plants, but "triflora" rarely is. Notable cultivars include "P. glaberrima" 'Morris Berd', "P. glaberrima" ssp. "triflora" 'Forever Pink' and "P. glaberrima" ssp. "triflora" 'Triple Play'.
References.
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