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112c. Erigeron philadelphicus Linnaeus. var. provancheri (Victorin & J. Rousseau) B. Boivin, Naturaliste Canad. 89: 72. 1962.
Vergerette de Provancher
Erigeron provancheri Victorin & J. Rousseau, Contr. Inst. Bot. Univ. Montréal 36: 58. 1940
Perennials 4–18(–20) cm . Stems mostly glabrous. Leaves: basal persistent through flowering; cauline faces glabrous or glabrate. 2n = 18.
Flowering May–Aug. Crevices in shale or dolomite, usually beside rivers or lakes, receiving splashed water; of conservation concern; 0–50 m; Ont., Que.; N.Y., Vt.
Erigeron philadelphicus subsp. provancheri (Victorin & J. Rousseau) J. K. Morton is not a valid name.
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