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 districts, banks of streams, and ravines. The stem is rigid, rather rough, stiffly hairy. The leaves are oblong to lance-shaped, the lower narrowed to the clasping leaf-stalk, the upper broader, blunt below, half-clasping, toothed, paler, net-veined, falsely 3-nerved below, hairless, or hairy. The panicle is small, in a sort of corymb, with 2-3 straight, nearly erect, lower branches, the upper spreading, ascending, close. The flower-stalks are woolly-felted, haiy.. The 5-12 heads are large, glossy, brown, nearly cylindrical, blunt below. The phyllaries are dark, closely pressed, broad, narrow-tipped, blunt, the outer few, lance-shaped, the inner linear to lance-shaped, paler below, woolly-felted, glandular, hairy. The ligules are hairless. The styles in Scottish specimens are livid. The plant is 1 1/2-4 ft. high, flowering in July and August, and is a herbaceous perennial.
Hieracium maritimum, F. J. Hanb. - The stem of this plant is erect, tall, rigid, reddish-purple, stiffly hairy, woolly-felted, rough above. The leaves are leathery, dark-green, crowded, the lowest spreading, inversely egg-shaped, rounded to blunt above, shortly stalked, the rest erect, linear to oblong, lance-shaped, nearly acute, abruptly narrowed, clasping below, entire or finely toothed, stiffly hairy. The panicle is a racemelike corymb. The heads are 1-10, leafy below, the branches straight below, arching. The flower-stalks are very woolly-felted, stiffly hairy. The heads are very dark, short, broad, nearly blunt. The phyllaries are short, broad, very blunt, the outer triangular, the inner oblong to linear, lance-shaped, woolly-felted, hairy, the inner paler. The ligules are yellow-orange, hairless. The styles turn colour. The plant is 1-3 ft. high, flowering in July, and is a herbaceous perennial.
The habitat of this plant is hedgebanks, copses, damp thickets, woods, rocky places, banks of streams, lochs and loughs, railway banks, heaths, etc. It is common on shale, sand, and grit, less so on limestone scars. The stem is rigid, hairy, often leafy below, slender or thickened, round, finely furrowed, red below, stiffly hairy, branched above. The leaves are numerous, close, soft, olive-green, flat, toothed, with teeth directed forwards, long-pointed, the lower leaves linear to lance-shaped, close, stalked, the stalks winged, hairy, the middle and upper leaves broadly lance-shaped, all stiffly hairy both sides, or shining, hairless above. The branches are loosely panicled, the upper often close, the others distant. The flower-stalks are woolly-felted or grey. The heads are medium, with long stalks. The acladium is 20-25 mm-The bracts are 3-4, linear. The flowerhead is egg-shaped, rounded below, the phyllaries green-bordered, wide, stellately woolly-felted. The receptacle pits are irregularly lobed. The ligules are yellow to golden. The styles are livid. The achenes are purplish-black.