Perennial from rather deeply descending root; stock simple or branched. Stems solitary or several, occ. branched, erect, wiry, 15-30-(50) cm. tall, rather slender, margined, very finely striate. Basal lvs crowded, subrosulate, coriac., subfleshy, ± glossy. Lamina somewhat diversely shaped, (10)-20-30-(40) × 4-8-(10) mm., elliptic- to obovate-oblong to ± lanceolate, subacute, narrowed to petiole ± 2-5-(10) mm. long. Lower cauline lvs similar, upper sessile, subacute, in 2-5 ± lanceolate pairs, diminishing upwards into infl.-bracts; lower internodes up to c. 8 cm. long. Infl. an irregular terminal bracted compound umbel. Fls 5-15; bracts us. whorled, 10-12 mm. long, lanceolate-subulate; pedicels slender. Calyx 10-12 mm. long, cut at least 3/4 way into lanceolate to subulate acute lobes; midvein evident, sinus narrow. Corolla white, 14-15 × 14-15 mm., cut at least 3/4 way into distinctly veined broad-obovate to broad-oblong lobes.