Annual or biennial, glabrous or somewhat hairy herb, with slender stock and roots. Stems erect, often branched, basal leaves withering before anthesis. Leaves green (not glaucous), flat, narrowly elliptic with smooth margin, up to 8 by 1 cm, apex acute. Flowers solitary or few together, not fragrant. Epicalyx scales 4-6, about half as long as the calyx. Calyx 15-25 mm long with acute lobes. Petals red or white, lamina c. 15 mm, obovate, coarsely dentate to deeply fringed.
A short lived plant often grown as an annual. It grows 30-45 cm high and spreads 15-23 cm wide. It is a bushy plant. The stems have easy to see nodes. The leaves are slender. They are light green, pointed and 8 cm long. The flowers are red, pink or white. They are about 2.5 cm across.