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The family flora and materia medica botanica - Good, Peter P. (Peter Peyto), 1845.

New from The University of Chicago Press and author Anna Laurent, Botanical Art from the Golden Age of Scientific Discovery. Gorgeous.

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The Blackberry.

Scientific classification Kingdom: Plantae (unranked): Angiosperms (unranked): Eudicots (unranked): Rosids Order: Rosales Family: Rosaceae Genus: Rubus Subgenus: Rubus (formerly Eubatus)

In its first year, a new stem, the primocane, grows vigorously to its full length of 3–6 m (in some cases, up to 9 m), arching or trailing along the ground and bearing large palmately compound leaves with five or seven leaflets; it does not produce any flowers. In its second year, the cane becomes a floricane and the stem does not grow longer, but the lateral buds break to produce flowering laterals (which have smaller leaves with three or five leaflets). First- and second-year shoots usually have numerous short-curved, very sharp prickles that are often erroneously called thorns. These prickles can tear through denim with ease and make the plant very difficult to navigate around.

Photo: De Materia Medica by Dioscorides,1554.