twigs pubescent; leaves spreading or recurved, oblong-lanceolate, acute, flattish above, keeled beneath, piloso-ciliate at keel and margin; flowers umbellate; peduncles pubescent-villous; calyx segments lanceolate, acute; petals 2–3 times longer than the calyx, the claw rather exceeding the calyx, limb narrow-oblong; sterile filaments scarcely longer than the calyx, linear, pubescent-ciliate below; ovary crowned with hairs; style glabrous. 6–12 inches high, or more, much branched, with spreading branches and filiform twigs. Leaves close, prominently nerved beneath and thicker at the point, margined with glands and very slender hairs, or the uppermost sometimes with minute glands, 2–3, rarely 4 lines long, 1/2 line wide. Peduncles 1 1/2–2 lines long, 2 bracted. Calyx 1/2–1 line long, ciliolate. Petals oblong, or linear-oblong, narrowed at base, 2 lines long. Fert. filaments exserted, glabrous; sterile downy at base, tapering to a filiform, glabrous, recurved point. Ovaries 3. Capsule 1 1/2–2 lines long; the carpels obtuse, glabrous, with a very short beak. Var. β. is chiefly distinguished by its smaller leaves, 1–1 1/2 line long, at margin and back furnished with stalked glands; some, however, quite glabrous.
