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 thickets and open commons. The habit is similar to the last, the stem dark-red. The prickles are broad-based, the leaflets rhomboid or egg-shaped, with a long, narrow point, green or white-felted below. The leaflets in mature leaves are distant, all narrow at both ends, with a long tip, with short hairs beneath. The panicle is pyramidal, with sickle-like prickles, with strongly bent-back white sepals, the petals, style, and long stamens all red. The lower panicle-branches are long and strongly ascending. The plant is intermediate between R. villicaulis and R. Selmeri, distinguished by the thinner, narrower, acuminate, rhomboidal leaflets, with short hair beneath, pyramidal panicle, bent-back sepals, and red flowers.
The habitat of this plant is arching, prostrate. The stem is furrowed. The prickles are rather short, with a broad base, spreading, or somewhat bent down. The leaves are large. The leaflets are at first softly downy, later bare below, broad, coarsely, irregularly doubly-toothed. The panicle is leafy, branched, few-flowered. The rachis is clothed with long hair. The flowers are very large, the petals pink or with a pink claw. The sepals are erect in fruit. The pollen-grains are large, equal, regular. The fruit is large and oblong. The plant is luxuriant. It is distinguished from R. Selmeri by the rounder, more wavy leaflets, strong sickle-like prickles, cylindrical panicle, turned-back fruiting sepals, and short stamens.
This is a local plant, found in thickets, hedges, and commons. The habit is arching, prostrate. The stem is blunt-angled. The prickles are rather long, wide-spreading to some extent. The leaflets are softly hairy below, overlapping, hollow, the terminal leaflet egg-shaped, heart-shaped, with a long narrow point. The panicle bears no glands, is irregularly branched, with felted flower-stalks, and conspicuous flowers. The fruiting sepals are turned back. The flowers are showy with large petals, pure white like the stamens (hence leucandrus). The fruit is large and oval. The plant is intermediate between R. affinis and R. gratus.
Rubus ramosus, Briggs - The habitat of this species is rocky, bushy places. The habit is straggly, erect, arched. There are few prickles. The leaves are 3-5-lobed, arising from a common centre with lateral leaflets. The leaflets are convex, leathery, shining above, coarsely and irregularly toothed, with close ashy or white felt under the hairs, the terminal leaflets oblong or slightly inversely egg-shaped, with a blunt point. The panicle is loose, with long branches, forming a corymb at the top. The rachis, flower-stalk, and sepals are ashy-white felted and thinly hairy. The sepals are loosely turned back. The fruit is small and poor. The plant is near R. Questierii in the felted panicle and shape of leaflets only. It flowers in July and August, and is a deciduous shrub.