This section is from the book "British Wild Flowers - In Their Natural Haunts Vol5-6", by A. R. Horwood. Also available from Amazon: A British Wild Flowers In Their Natural Haunts.
The habitat of this plant is cornfields, hedges, fields, waste places, and cultivated ground generally. The plant is a trailing or climbing plant, revolving- from right to left, against the sun, in about two hours. The stems are smooth or downy, numerous, branched, angular. The leaves are egg-shaped, arrow-shaped, entire, or wavy. The bracts are linear, small, and some way down the flower-stalk. The flowers are pink with white bands, plaited in bud, rolling in when they fade, two or more on a stalk. The flower-stalks are 4-angled, bent back in fruit. The sepals are unequal. The stigma is slender. The capsule is 2-celled, round, with a point. The seeds are 3-angled, with small prickles. The plant is 6 in. to 2 ft. 6 in. in height, flowering in June till September, and is a herbaceous perennial.
The habitat of this plant is flax fields, roadsides. The habit is festoon-like, the stem thread-like, pale-green. The flowers are white, clustered, the calyx is nearly as long as the corolla, which is inflated and rounded, and the segments are acute. The scales are closely pressed, the stamens do not project. The capsule is 2-celled and 2-seeded. The plant is 1-3 ft. long, and flowers in July and August, being an annual.