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. Sepals, 4 or 5, longer than the petals, broad. Petals, 4, or sometimes wanting. Stamens, as many as sepals, or twice as many. Styles, 4 or 5. Leaves, small, thread-like, numerous. After flowering, the leaf-stems sometimes become hooked at the top. Summer.
A small, matted plant, moss-like, spreading on the ground in damp woods, on wet rocks, and near springs, chiefly near the coast.
5. decumbens, - Petals, 4, small, or sometimes wanting. Sepals, stamens, and styles, 4. Leaves, short, bristle-tipped, thin, hairy, clustered near the base. Summer.
 
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