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 lofty mountains. The plant is green, the stem wavy, stiffly hairy, woolly-felted, glandular. The radical leaves are oval, elliptic, blunt, with a short point, toothed especially towards the base, narrowed to the foot-stalk, stiffly hairy. The 1-2 stem-leaves are bract-like. The few heads are dark, slender, egg-shaped, with a rounded base. The stalks are stout, spreading, glandular. The phyllaries are slender, linear, glandular. The ligules are stiffly hairy. The styles are dark. The height is 4-6 in. The plant flowers in July and August, and is a herbaceous perennial.
Hieracium atratum, Fr. f - The habitat of this plant is lofty mountains. The stem is simple or branched, nearly smooth, stellately down)-, glandular. The radical leaves are bright-green above, stiffly hairy below, broad, elliptic, entire, with a blunt base, the inner oval, lance-shaped, acute, wavy, coarsely irregularly toothed, the teeth acute, broad, triangular, ascending, the leaves on long stalks. The stem-leaf is solitary, stalked, oval, lance-shaped, acute. The heads are rounded below, on arching, long, woolly-felted, glandular stalks, with bracteoles at the base. The very dark-green phyllaries are blunt, the inner with a pale margin, awl-like, glandular, hairy, with woolly felt at the base of the outer. The ligules are yellow, stiffly hairy, the tips fringed with hairs, smooth in British specimens. The styles are yellowish-brown. The plant is 6-12 in. high, flowering in July and August, and is a herbaceous perennial.
Hieracium cumbriense, F. J. Hanb. - The habitat of this plant is lofty mountains. The rootstock is horizontal or bent, woody. The stem is stout, reddish, rough, stiffly hairy, woolly-felted, glandular. The radical leaves are numerous, thick, yellow, bluish-white, the outer rounded, blunt at the base, the later egg-shaped, oval, blunt-pointed, toothed, wedge - shaped at the base, the inner elliptic, egg-shaped, lance-shaped, narrow, acute, with 4 large teeth each side, smooth, stiffly hairy, in the nerves below fringed on the border. The stem-leaf is solitary, stalked, linear, bract-like. The panicle is close, with 1-2 racemose, corymbose, umbelled branches, the upper erect, spreading. The stalks are straight, woolly-felted, glandular. The 5-10 heads are large, black, long. The long phyllaries extend forwards in bud, the outer triangular, acute, the inner long, linear, blunt, the inner narrower, acute, with pale-green borders, with woolly felt, except the outermost, and glandular. The ligules are orange, smooth. The styles are livid.
The habitat of this plant is lofty mountains. The stem is usually simple, stout, tall, stiffly hairy, slightly woolly-felted below, glandular above. The radical leaves are light-green, thick, broad, the outer rounded, inversely egg-shaped, blunt, narrowed below, the middle oval, inversely egg-shaped, acute, coarsely and sharply toothed below, the innermost egg - shaped, lance - shaped, acute, the teeth long, acute. The stem-leaves are stalked, egg-shaped, lance-shaped, acute, toothed, the upper linear, lance-shaped, entire, stiffly hairy below, fringed with hairs. The panicle is loose, with 2-3 patent 1-2-headed branches, the upper arching, woolly-felted, glandular. The 4-10 heads are thick, blackish - green, rounded, egg-shaped, cylindric in bud. The outer phyllaries are loose, the inner long, lance-shaped, linear, blunt, the innermost narrowed, acute, with a pale border, senescent, hairy, and glandular. The ligules are tipped with hairs. The styles are livid-black. The plant is 10-18 in. high, flowering in July and August, and is a herbaceous perennial.
Hieracium centripetale, F. J. Hanb. - The habitat of this plant is rocky beds of alpine burns. The stem is erect, solid, furrowed, wavy, stiffly hairy below, woolly-felted, glandular above. The radical leaves form a flat rosette, the earliest being rounded, egg-shaped, the later narrow, oblong, the inner lance-shaped, horizontally toothed towards the wedge-shaped base, stiffly hairy below and on the margins. There is one stem-leaf, the bract linear, lance-shaped, toothed. The panicle has long, alternate, arching branches. The 2-12 heads are narrow, bell-shaped, narrow at the base in bud. The flower-stalks are arching, woolly-felted, glandular. The phyllaries are long, narrow, linear, the outer blunt, acute, woolly-felted, the inner narrow, with a pale margin, senescent, glandular, hairy. The styles are livid. The ligules have stiffly hairy tips. The margins of the receptacle pits are toothed and torn. The plant is 14-16 in. in height, flowering in July and August, and is a herbaceous perennial.