Herb with very deep taproot. Stems 4-18 cm tall, branched at base, and sometimes also above, purplish black or green, with dense strigillose hairs in lines running down from margins of petioles. Lamina of lf narrowly oblanceolate or oblanceolate, 6-15 × 2-5 mm. Floral tube 0.7-1.6 mm deep, glabrous. Petals white, 4.2-8 × 2.2-3.5 mm. Capsules 1-2.4 cm long, glabrous, subsessile.