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 copses, hedgebanks, banks, and heaths. The plant has the erect habit. The stem is very hairy, often reddish, downy above, leafy. The leaves are broad at the base, egg-shaped, lance-shaped, toothed, the lower stalked, the upper broader, stalkless, scarcely clasping, falsely 3-veined, the lower narrowed below, hardly stalked. The heads form a corymb or panicle, leafy. The flower-stalks are cottony, the involucre egg-shaped below, dark, nearly smooth, with close, broad, blunt bracts. The ligules are smooth. The style is blackish livid. The plant is 2-4 ft. in height, and flowers in August and September, being a herbaceous perennial.
The habitat of this plant is thickets, etc, dry rocky places, and heaths. The plant has the erect habit. The stem is wiry, with long, loose hairs below, short, without radical leaves. The leaves are stalkless, numerous, smooth, or hairy below, linear-oblong, lance-shaped, the base narrowed, toothed, uniform, the teeth distant, netted, stellately downy below. The heads form an umbel or corymb. The florets are yellow, the top of the slender, rigid flower-stalk cottony. The involucral bracts are dark green, smooth, with bent-back points, blunt. The ligules are smooth. The styles are yellow. This plant is 1-4 ft. high. It flowers in July up till September, and is a herbaceous perennial.