Fragaria virginiana subsp. virginiana
Stolons spreading-hairy proximally, sometimes ascending-hairy or glabrous distally. Leaves: petiole spreading-hairy; leaflet blade usually dark green to slightly bluish green, sometimes bright green, not glaucous, terminal leaflets oblong-ovate or slightly rhombic, not leathery, margins sharply serrate in distal 1/2 to throughout, teeth: relative number 0.2–0.8. Peduncles usually ± spreading-hairy proximally, appressed ascending-hairy or glabrous distally. Pedicels appressed-hairy or glabrous. Flowers 12.1–19.5 mm diam. (pistillate), 15.2–23.6 mm diam. (bisexual or staminate). Fruits: bractlets clasping, spreading, or ± reflexed. 2n = 56.
Phenology: Flowering spring.
Habitat: Moist to dry sites, open forests, forest edges, hedges, fields, roadsides, railroad embankments, abandoned fields, often ruderal
Elevation: 0–1000 m
St. Pierre and Miquelon, Man., Nfld. and Labr. (Nfld.), N.S., Ont., Que., Ala., Ark., Conn., Del., D.C., Fla., Ga., Ill., Ind., Iowa, Kans., Ky., La., Maine, Md., Mass., Mich., Minn., Miss., Mo., Nebr., N.H., N.J., N.Y., N.C., Ohio, Okla., Pa., R.I., S.C., S.Dak., Tenn., Tex., Vt., Va., W.Va., Wis.
"thin" is not a number.