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 mountain streams and rocks. The habit is more or less the rosette habit. The plant is clothed with soft silky hairs, except the upper surface of the leaves. The root-stock is slender and branched. The branches are ascending above, usually simple, the stem slender, ascending. The leaves are finger-shaped, toothed, with 5-7 lobes, separate to the base, oblong, blunt, on slender stalks, the upper stalkless, rounded to kidney-shaped. The leaflets are narrow, oblong to egg-shaped, suddenly long and narrowly pointed, sharply toothed at the apex. The stipules are united at the base, cleft. The flowers are yellowish-green, on short hairy stalks, in interrupted spikes or small lateral and terminal corymbs. The achenes are slightly glandular. The plant is 3-9 in. long, flowering from June to August, and is a herbaceous perennial.
The habitat of this plant is limestone cliffs. It is a native, and abundant where it occurs, growing up to 1600 ft. Seedlings are frequently produced. It is a small, spreading tree or shrub, with many slender branches. The leaves are linear, oblong, divided slightly to the base, with 3-4 pairs of lobes, deepest at the middle or upper part, the lowest one-third or one-fourth not lobed. The lateral veins are 5-7, forming an acute angle with the midrib, prominent below and grooved above, the underside having a grey felt. The flowers are in loose corymbs, not flat-topped, the petals round, cream-coloured, the calyx erect and prominent, persistent till the fruit is ripe. The fruit is small, globose, bright coral-red, bitter, ripening in August or September. The plant is 10-20 ft. in height, flowering in May and June, and is a deciduous tree.
Pyruspinnatifida, Ehrh. (= P. fennica, Bab.). - The habitat of this plant is mountains and rocky glens. It is a rare species. The plant has the tree habit. The leaves are oblong, toothed, pinnate below, with 1-4 pairs of free leaflets, the base running down the stem, and 1-2 pairs of free lobes, the leaflets and lobes oblong or narrowly elliptic. The underside is grey-felted. The flowers are white, in a corymb. The plant is regarded as a hybrid between P. Aria and P. Aucttparia. It is tall, flowering in June and July, and is a deciduous tree.
This plant is now quite naturalized in N. Wales. The plant is an evergreen shrub, with small, oblong, blunt leaves, which are downy below, glossy above, leathery. The berries are scarlet.
The habitat of the Cotoneaster is limestone cliffs. The plant has the shrub habit. The stems are erect, with downy branch-lets. The leaves are round below, broadly elliptic to oblong, ovate, densely downy below, entire, smooth above, adapted to cold. They are round or acute at the apex. The leaf-stalk is very short. The stipules have a membranous margin. The flowers are few, pink, in lateral cymes. The ultimate flower-stalks are short, downy, bent-down. The bracts are very small. The calyx is top-shaped, the margins downy, the lobes blunt. The petals are small, persistent. The styles are 3. The fruit is small, round, shining, red, pendulous. The plant is a perennial ,shrub, flowering in May and June.