This section is from the book "An Illustrated Flora Of The Northern United States, Canada And The British Possessions Vol2", by Nathaniel Lord Britton, Addison Brown. Also available from Amazon: An Illustrated Flora of the Northern United States, Canada and the British Possessions. 3 Volume Set..
Low branching glabrous shrubs, with corky branches, opposite coriaceous evergreen leaves, and small axillary, solitary or clustered, perfect brownish flowers. Calyx-lobes 4, broad. Petals 4, spreading. Stamens 4, inserted beneath the disk; filaments longer than the anthers. Ovary immersed in the disk, 2-celled; ovules 2 in each cell, erect; style very short; stigma slightly 2-lobed. Capsule oblong, compressed, 2-celled, at length loculicidally dehiscent, 1-2-seeded. Seeds oblong with a white many-lobed aril at the base. [Greek, thick stigma.]
A shrub 4'-12' high, with decumbent rooting branches. Leaves linear-oblong, or slightly obovate, 3"-12" long, 1 1/2"-2" wide, obtuse at each end, very short-petioled, pale green, serrate, the margins revolute; peduncles 1-3-flowered, 2-bracted below the middle; pedicels slender, shorter than the leaves, 2-bracted near the base; calyx-lobes oval, about equalling the petals; capsule oblong, about 4" long and 2" in diameter, dehiscent at maturity.
On dry exposed rocks, mountains of Virginia and West Virginia. Rat-stripper. April-May.