This section is from the book "Harper's Guide To Wild Flowers", by Caroline A. Creevey. Also available from Amazon: Harper's Guide To Wild Flowers.
Family, Pink. Color, dark pink or red. Sepals and petals, 5. Stamens, variable, about 10. Styles, mostly 3. Leaves, flat, linear, thick. Stipules, prominent, sometimes cleft.
A low, smooth plant, 2 to 6 inches high, the stems upright or prostrate. Smaller leaves are clustered in the axils. Sandy soil near the coast, extending inland from Maine to Virginia, westward to Ohio.
S. marina,. - This is a more strictly marine species, with fleshier leaves and lighter pink corolla, found along the entire Atlantic-coast and in saline soils inland.
Family, Pink. Color, white or pink. (See White Flowers, p. 66.)
 
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