From Puget Prairie Plants
General: Tufted perennial from a stout taproot and branched crown, the numerous, decumbent, simple stems 1-4 dm. tall, densely pubescent throughout. Leaves: Basal leaves matted, long-petiolate, oblanceolate to linear-lanceolate, 2-5 cm. long and 2-7 mm. wide; cauline leaves 1-8 pairs, becoming smaller and sessile above.
Flowers: Flowers few, with linear bracts, often remote; calyx tubular, 5-lobed, 12-15 mm. long, becoming papery and enlarged in fruit; petals 5, creamy-white, greenish, pink or purplish; claw 8-12 mm long, the blade oblong, 4-6 mm. long, bi-lobed about ¼ the length; blade appendages 2, oblong, 1 mm. long; ovary stalk 3-4 mm. long; stamens 10; styles 3.
Fruits: Capsule 1-celled.
Late May - July