Prunus spinosa of the fruit caused by the fungus "Taphrina pruni" produces an elongated and flattened gall, devoid of a stone. The shrub, with its savage thorns, is traditionally used in Britain and other parts of northern Europe to make a "cattle-proof" hedge. The fruit is similar to a small damson or plum, suitable for preserves, but rather and for eating, unless it is picked after the first few days of autumn frost. This effect can be reproduced by freezing harvested sloes. The juice is used in the manufacture of fake port wine, and used as an to impart roughness to genuine
Grevillea spinosa Grevillea spinosa Grevillea spinosa, also known as the spiny grevillea, is an evergreen shrub of the genus "Grevillea" native to an area in the east of the Mid West, northern Goldfields-Esperance and southern Pilbara regions of Western Australia. The prickly shrub typically grows to a height of and has non-glaucous branchlets. It has simple, dissected, subpinnatisect leaves with a blade that is . It blooms from May to September and produces a terminal raceme irregular inflorescence with green or yellow flowers and orange styles. Later it forms red-brown simple hairy oblong to ovoid fruit that is long. The plant has