Geocarpon groenlandicum (Retzius) E.E. Schilling. Mountain Sandwort, Greenland Sandwort. Phen: May-Oct. Hab: Low elevation rock outcrops (such as sandstone pavements in the VA Ridge and Valley) to high elevation rock outcrops in the Mountains (ascending to nearly 2000m on Roan Mountain), also disjunct on the summits of quartzite monadnocks in the upper Piedmont (such as Pilot Mountain, Surry County, NC and Hanging Rock, Stokes County, NC). Dist: Greenland, NS, and QC south to the higher mountains of New England and NY; disjunct in the Southern Appalachians of VA, w. NC, and e. TN.

Origin/Endemic status: Native

Synonymy: = Schilling et al (2022), in press; = Arenaria groenlandica (Retz.) Spreng. – W; = Arenaria groenlandica (Retz.) Spreng. var. groenlandica – C, F, G, RAB, Maguire (1951); = Minuartia groenlandica (Retz.) Ostenf. – FNA5, K1, K3, NE, Tn, Va; = Mononeuria groenlandica (Retz.) Dillenb. & Kadereit – K4, NY, Dillenberger & Kadereit (2014); = Porsildia groenlandica (Retz.) Á.Löve & D.Löve ssp. groenlandica; = Sabulina groenlandica (Retz.) Small – S

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