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 old walls, etc, near houses, sandy fields in Ireland. The habit is ascending. The plant is hairy. The rootstock is creeping and bears stolons. The stems are hairy, much-branched, leafy, woody below. The leaves are ovate, stalked, cut, scalloped, wedge-shaped, narrowed into the leaf-stalk, with prominent veins below, entire below, green both sides. The flowers are purple or rose-colour, in a raceme, 5 in a whorl, in the axils of bracts. The lower bracts are entire, stalkless, leaflike, purplish, the upper smaller, broader below. The calyx-teeth are lance-shaped, straight, triangular, the calyx nearly equal below, and the lower lip of the corolla is spotted white and red. The nutlets are smooth. The plant is 6-18 in. high, flowering from July to September, and is a herbaceous perennial.
The habitat is alpine shady places. The habit is erect. The whole plant is hairy. There are no runners. The flowers are purplish-blue, in compound pyramidal spikes. The calyx is woolly. This alpine bugle grows to a height of 1 ft. It flowers from May to July, and is a herbaceous perennial.