Aria rupicola, commonly known as rock whitebeam,[1] is a rare species of shrub or small tree best known from the British Isles but also reported from Norway, Sweden and Russia.

[2] Reaching heights of 10 m,[3] it grows in rocky woodland, scrub and cliffs, usually on limestone.

[3] The species reproduces apomictically (asexually via cloned seeds) and was presumably created by autopolyploidysation of the common whitebeam proper (Sorbus aria s.str.).

It contains a tetraploidal set of chromosomes (2n=4x=68).

Stace gives Aria rupicola the following characteristics:[3]