Cycladenia humilis var. jonesii is a long-lived herbaceous perennial in the Dogbane family (Apocynaceae). The caulescent herb is 11-36 cm tall glabrous and glaucous, the lower most leaves reduced to subamplexicaul bracts, enlarging and becoming green upwards; main foliage leaves 3.5-9.5 cm long, 2-6.5 cm wide, oval to orbicular or broadly obovate, tapering abruptly to the broad petiole, thickened, entire, the apex rounded to acute; pedicels 5-25 mm long; bracts linear-lanceolate, 3-9 mm long; calyx lobes 5-11 mm long, lance linear, villous pilose, somewhat accrescent in fruit; corolla rose purple, dimorphic, either broadly lobed 23 – 28 mm long and 19 – 31 mm broad, or narrowly lobed 18-21 mm long and 13-19 mm wide; follicles 4.5-9.5 cm long; seeds are brown , ca 7.5 mm long, the coma is ca. 20 mm long. Flowering occurs from mid-April to early June (Welsh et al. 2003).