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Annual herb. Stems erect or decumbent, pubescent to densely pilose, denser and cottony at nodes, often with sand grains stuck to hairs. Leaves sparsely pilose, hairs denser on margin and veins, narrowly to broadly lanceolate, sometimes elliptic, 12-46-6 x 4-17 mm, apex acute or obtuse, base cuneate; petiole 3-11 mm long. Inflorescence as for J. anagalloides but usually 2 per node, one of each pair with a pair of reduced leaves near base, peduncles 5-23 mm long, with(2)3 or 4(-7)flowers near top. Corolla ±4 mm long, white with maroon lines on palate. Pollen 2-porate, 22-29 µm long, sexine areolate. Capsule 4-seeded, broadly lanceolate, delicate, glabrous or with short hairs confined to apex, (3.5-)4.0-5.0(-6.0) mm long.
A herb. It grows each year from seed. It can be erect or lie along the ground. The stems are 45 cm long. The leaves can have hairs along the midrib. The leaves are broadly oval or sword shaped. They are 12-46 mm long by 4-17 mm wide. The flowers are white with red lines.
Erect or decumbent annual herb. Inflorescence of long-pedunculate, elongate, axillary cymes; cymes 2 per node. Corolla ± 4 mm long. Capsule up to 4(-6) mm long, glabrous or usually with hairs at apex only. Flowers white with maroon lines.
