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 mountain rocks. The stem is branched, purple, woolly-felted, stiffly hairy below, hairy above. The radical leaves are thick, tinged with purple, broadly egg-shaped, blunt or rounded below, the leaf-stalks long, stiffly hairy, the inner leaves egg-shaped, acute, with arrow-shaped teeth below, woolly-felted, hairy below and on the borders. The stem-leaf is egg-shaped to lance-shaped, toothed. The panicle is a falsely forked corymb, the branches racemose. The 4-7 heads are large, thick, blunt below. The flower-stalks are straight, woolly-felted, glandular. The outer phyllaries are lance-shaped, the inner lance-shaped, linear, blunt, the innermost narrowed, bent inwards in bud, woolly-felted on the margins, senescent, glandular. The ligules are stylose, with smooth tips. The styles are dark-olive. The margins of the receptacle pits are hardly raised, toothed. The stem is 9-24 in. high, flowering from June to August, and is a herbaceous perennial.
Hieracium Breadalbanense, F. J. Hanb. - The stem of this plant is simple or branched, finely furrowed, stiffly hairy below, woolly-felted, hairy above. The radical leaves are yellow-green, paler below, thick, roughly hairy both sides, or nearly hairless, the outer oval, nearly entire, the inner egg-shaped, acute, finely toothed, narrowed to the short, shaggy leaf-stalk. The stem-leaf is shortly-stalked, acute, sharply-toothed, or bractlike. The panicle is a falsely forked corymb, with dichasial branches. The stalks are nearly straight, erect, woolly-felted, hairy. The 3-8 heads are broad, egg-shaped. The outer phyllaries are triangular, lance-shaped, acute, the inner narrower, woolly-felted, hairy. The styles are yellow. The ligules are yellow, with a fringe of hairs at the tip. The margins of the receptacle pits are raised, sharply-toothed. The plant is 12-18 in. high, flowering in July and August, and is a herbaceous perennial.
Hieracium rivale, F. J. Hanb. - The habitat of this plant is rocky burns, cliffs. The stem is branched, woolly-felted above, purplish-red, stiffly hairy below, glandular above. The radical leaves are bright-green, the outer rounded, oval, finely toothed, the inner oval, lance-shaped, narrow, acute, narrowed to the shaggy leaf-stalk, sharply toothed below, the innermost coarsely toothed, hairy both sides and on the borders. The 1-2 stem-leaves are egg-shaped, lance-shaped, linear, acute. The panicle is a falsely-forked corymb, with dichasial branches. The flower-stalks are long, arching, thickened at the tip, woolly-felted, glandular, hairy. The 4-10 heads are grey, inversely conical. The phyllaries extend outwards in bud, the outer short, awl-like, acute, the inner long, lance-shaped, linear, acute or blunt, the innermost long-pointed, bristle-like, woolly-felted, hairy, glandular. The styles are livescent, or yellow. The ligules are fringed with hairs. The plant is 12-20 in. in height, flowering from June to August, and is a herbaceous perennial.