Rose Verbena (Rose Vervain)
A low, spreading herbaceous perennial with hairy stems that take root where they touch the ground. Flowers in rounded or flat-topped, terminal clusters, tubular, with 5 lobes. Makes spectacular displays on dry, rocky hillsides. Color varies from true pink to magenta to rose-purple, probably depending on soil. Blooms March-November. Leaves variable, opposite, on petioles, more or less 3-divided with toothed lobes, to 3 inches long.