Cerastium velutinum Rafinesque var. villosissimum (Pennell) J.K. Morton. Octoraro Creek Chickweed. Phen: May-Aug. Hab: Serpentine barrens. Dist: This taxon is highly restricted, found only at a few stations in the serpentine barrens of Chester County, PA, and Cecil County, MD (Gustafson et al. 2003).
Origin/Endemic status: Endemic
Syn: = K4, Gustafson et al (2003); = Cerastium arvense var. villosissimum – F, Pennell (1930); = Cerastium velutinum var. villossissimum – FNA5, K3, Pa, orthographic error; < Cerastium arvense – C, G; < Cerastium arvense ssp. velutinum var. villosum – K1
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