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 rough, rocky, and bushy ground. The habit is arching, prostrate. There are numerous prickles. The leaves are 3-5-lobed, with finely pointed, compound, deeply-cut teeth, thinly hairy only on the nerves beneath, the terminal one oblong or inversely egg-shaped, with rather narrow, notched base. The panicle is rigid above, blunt, forming a raceme, with 1-2 long-stalked flowers, widespreading branches, and nearly stalkless terminal flowers. The prickles are crowded on the rachis and flower - stalks; turned down or shortly hooked. The sepals are erect in fruit. The stamens and style are nearly of the same length. The fruit is oblong. The plant differs in habit from R. nitidus, approaching R. Colemanni and R. Questierii. The form of the panicle is very characteristic.
Rubus macrophyllus, Wh. & N. - The habitat of this plant is woods and thickets, and it appears to thrive in the shade. The habit is arching, prostrate, climbing, much-branched. The leaves are 5-lobed, finger-shaped, often very large. The leaflets are smooth above, softly hairy below, doubly and widely toothed, the terminal leaflet oval to heart-shaped, with a long narrow point. The panicle is loose, normally weak, with grey felt, and a hairy rachis, and flower-stalk, with weak, turned-down, or rather sickle-like prickles. The lower branches are very distant. The sepals are shaggy, with grey felt below, strongly bent back. The flowers are of medium size. The carpels are smooth. The plant flowers in July and August, and is a deciduous shrub.
Rubus amphichloros, P. J. Muell. - The leaves of this species are 3-5-lobed, finely and evenly toothed. The terminal leaflet is roundish to oval. The panicle is long and loose. The sepals are loosely turned back. Dr. Focke regards it as distinct from R. amplificatus by the shape or rounded outline and fine toothing of the leaflets.
Rubus Questierii, Lefv. & Muell.- The habitat of this species is woods and thickets in rough rocky ground. The leaves are 5-lobed, finger shaped, with 3 lobes radiating- from a centre, and lateral leaflets, the same colour each side. The leaflets are thinly hairy, and green each side, long and narrow, oval or inversely egg-shaped, with a long narrow point. The panicle is long, loose, narrow, with widespreading upper branches, overtopped by the very narrow, simple, floral leaves. The rachis and calyx are grey-felted. The flower-stalk and sepals, which are strongly bent back, have abundant white felt. The long narrow panicle and white-felted rachis, flower-stalk, and sepals, and green leaves help to distinguish it. The plant approaches R. amplificatus and R. Colemanni.
The habitat of this species is woods, thickets, and open rough ground, and hedges. The habit is arching, prostrate, the stem furrowed, angular, and nearly smooth. The prickles are rather widespreading, and slender. The leaves are chiefly 5-lobed, with 3 lobes radiating from a common centre, and 2 lateral lobes, with compound, deeply-cut teeth above. The leaflets are rather overlapping, nearly smooth above, with ashy felt below, and loose, or deeply cut and lobed, or closer and shallow and finely pointed, the terminal one long-stalked, with a long point, and entire or heart-shaped below. The panicle is long, cylindrical above, with 1-3 flowers on long stalks, widely-spreading branches, and blunt top. The long-pointed sepals embrace the fruit. It flowers in July and August, and is a herbaceous shrub. The soil is siliceous, etc. The species approaches R. hirtifolius, but has a less hairy stem, more deeply cut leaflets, smooth, and ashy-felted, a less glandular rachis and flower-stalk.