Leaves subsessile; stipules c. 1 mm long, linear and toothed at the broad base; lamina to 15 × 4 mm, lanceolate, rounded and apiculate at the apex, obliquely rounded to subcordate at the base, margin entire in the lower half, toothed in the upper half, obscurely so on smaller leaves.
Cyathia terminal and pseudoaxillary on short leafy shoots, solitary on peduncles 1 mm long, 1 × 1 mm with cup-shaped involucres; glands 4, minute, transversely elliptic, often red, with minute pink or red lobed appendages; involucral lobes 0.5 mm long, triangular, toothed.
Annual herb with branching stems erect to 35 cm high, glabrous except occasionally for a few long scattered hairs on the basal branches and leaves, the whole plant often tinged red.
Seeds 1 × 0.5 mm, oblong-conical, with 3–4 distinct transverse wrinkled ridges and grooves, pinkish-brown.
An erect, slender, usually much-branched annual herb, to 18 in. high; stems often tinged crimson
Capsule exserted on a reflexed pedicel 1.5 mm long, 1.5 × 1.5 mm, acutely 3-lobed.
Female flower: ovary pedicellate; styles 0.5 mm long, bifid almost to the base.
Male flowers: few, bracteoles filamentous; stamens 1 mm long.
Leaves glaucous