Plants 1-8 dm. Inflorescences , excluding peduncle, 2-3.5 cm; bracteoles equaling or shorter than pedicels. Flowers : pedicel rigidly arcuate-recurved in fruit, ca. 3 mm; corolla 9-14 mm, spur 2-3 mm; outer petals white; inner petals white near base, deep red or dark purple apically. Capsules globose, slightly compressed, 2-2.5 mm diam., smooth or nearly so. 2 n = 64.
Flowering spring. Waste places, ditches, cultivated fields; 0-50 m; introduced; Fla.; sw Europe; n Africa.