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 species is hedges, pathways, hedgebanks, ditches, borders of fields, and waste places on a stiff soil. The habit is as in the last. The stem is erect, branched, stout, hairy, the bristles 3-fid, rigid, hooked, and tuberculate at the base. The radical leaves are stalked, wavy, toothed, the upper heart-shaped, clasping, oblong, lance-shaped. The flowerheads are large, the florets yellow. The flower-stalks are stout, stiff, enlarged, spreading, naked. The involucre is hemispherical, bristly. The outer bracts are leaflike, heart-shaped, the inner long, narrow-pointed. The ligules are short. The fruit is shortly, narrowly beaked, reddish-brown, angular. The pappus is snowy-white. The plant is 1-3 ft. high, flowering between June and October, and is a herbaceous annual.
Hieracium surrejanum, F. J. Hanb. - The habitat of this species is sandy hedgebanks. The stem is usually simple, finely furrowed, reddish, hairy below, woolly-felted, stiffly hairy above. The earlier radical leaves are not persistent, oblong to elliptic, the later broad to egg-shaped, blunt, narrowed below, toothed, the inner egg-shaped to lance-shaped, blunt, wedge-shaped below, purplish, stiffly hairy below and on the border. The stem-leaves are 2-5, the lower stalked, egg-shaped, oblong to lance-shaped, the upper blunt, narrowed to the nearly stalkless base, toothed. The panicle has 1-2, erect, spreading, 2-3-flowered branches in a corymb, the upper arching, exceeding the acladium. The 3-7 heads are broad, egg-shaped. The flower-stalks are woolly-felted, hairy, glandular. The phyllaries are dark, the outer linear, acute, the inner broader, lance-shaped to oblong, narrow above, blunt, with a pale border, woolly-felted, glandular, hairy. The ligules are hairless. The styles are yellow. The plant is 1-2 ft. in height, flowering in June, and is a herbaceous perennial.
The habitat of this plant is hedgebanks, dry banks, and waste places. The habit is erect. The stem is leafy, branched above, panicled, rough. The plant is bluish-green, full of milky acrid juice, which serves to protect it. The leaves are spreading, the radical leaves inversely egg-shaped, oblong, toothed, wavy, stalked, with black spots, the stem-leaves clasping, with auricles, pointing downwards, hardly narrowed below. The flowerheads are pale-yellow, scattered, with few, green, red-tipped, acute, heart-shaped bracts, rarely with the lobes pointing backwards. The panicle branches are long-spreading. The flower-stalks are slender and bear bracts. The involucre is narrow, conical. The fruits are black, beaked, the beak as long as the fruit, with a cellular wing, and ribbed faces. The pappus is white, slender. The plant is 2-4 ft. high, flowering in July and August, and is a herbaceous biennial.
 
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