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 cliffs and banks of streams. The stem is simple or branched, stiffly hairy below, woolly-felted, stiffly hairy above. The radical leaves are few, the outer soon fading, elliptic to narrow at both ends, lance-shaped, oblong, triangular, entire above, the lower with acute teeth, stiffly hairy below and on the borders. There are 2-3 stem-leaves, the lower shortly stalked, lance-shaped, acute, toothed. The panicle is small, with 2-3 arching branches, the upper longer than the acladium. The stalks are stiffly hairy, woolly-felted, glandular. The phyllaries are lance-shaped to linear, blunt, the innermost acute, woolly-felted at the edge, glandular, hairy. The ligules are yellow, stiffly hairy at the tip. The styles are dull yellow. The achenes are black. The pappus is white. The margins of the receptacular pits are slightly raised, toothed. The plant is 1-3 ft. high, flowering in July and August, and is a herbaceous perennial.
The habitat of this plant is ravines and mountain pastures. The stem is simple or branched, wavy, smooth or stiffly hairy, woolly-felted above. The radical leaves are narrow, elliptic to lance-shaped, linear, acute, narrowed to the long leaf-stalk, entire or toothed, stiffly hairy below and on the border. The solitary stem-leaf is lance-shaped, acute, linear, bract-like. The panicle is small, forked, with 1-2 nearly erect to spreading branches. The stalks are long, straight, woolly-felted, glandular. The 2-4 heads are small, egg-shaped. The phyl-laries are dark, broad below, narrowed, acute, sparingly woolly-felted, glandular, hairy. The ligules are pale-yellow, smooth. The styles are rather livid. The plant is 10-16 in. in height, flowering in July and August, and is a herbaceous perennial.
The habitat of this plant is woods, banks, walls, etc. The stem is erect, hollow, finely furrowed, stiffly hairy. The radical leaves are green, with dark-purple blotches, egg-shaped to lance-shaped, acutely toothed, stiffly hairy both sides and on the border. The leaf-stalks are shaggy. The stem-leaves, 3-5, are nearly stalkless, large like the basal. The panicle is a compound corymb, the upper branches corymbose, longer than the acladium. The stalks have 3 bristle-like bracts, woolly-felted, glandular. The 4-10 heads are egg-shaped, long. The phyllaries are lance-shaped, linear, the inner narrow, woolly - felted, glandular, hairy. The ligules are orange, smooth. The styles are livid.
This species is closely allied to H. irriguum, Fr., from which it differs in the long white hairs of the stem, the broader, oval, subentire, or less-toothed leaves, the rather thicker heads, narrower phyllaries, and styles more nearly pure yellow.
The stem of this plant is tall, wavy, rigid, stiffly hairy, woolly-felted, glandular above. The radical leaves are green, with violet markings, the outer soon fading, oval, blunt, toothed, the inner oblong to broadly lance-shaped, toothed, wedge-shaped below, stiffly hairy below, the margins fringed with hairs. The 2-5 stem-leaves are smaller above, lance-shaped, rhomboid, acute, toothed. The panicle has the lower branches distant, erect to spreading, the upper close, spreading to arching. The stalks are woolly-felted, glandular, hairy. The heads are small, slender, dark, egg-shaped or inversely conical. The phyllaries are long to triangular, lance-shaped, blunt, the inner lance-shaped, acute, the tips coloured, glandular, hairy. The ligules are hairless. The styles turn colour.