1) Rough 
sharply pinnatifid or cleft, the segments directed downward.
having sharp teeth facing backwards
having irregular saw-toothed divisions
• (a.) Pinnately cut with the lobes pointing downwards, as the leaf of the dandelion.
sharply incised or pinnatifid with the segments facing backwards
Deeply lobed and with the lobes slanted away from the apex. ... (09 Oct 1997) ... 
sharply incised or pinnatifid with the segments facing backwards 
Run'ci·nate adjective [ Latin runcinatus , past participle of runcinare to plane off, from runcina a plane.] (Botany) Pinnately cut with the lobes pointing downwards, as the leaf of the dandelion. 
Said of sharply lobed or cut leaves that have the segments directed backward.
having sharp teeth facing backwards
In botany, runcinate refers to something, usually a leaf, pinnately incised with the lobes or teeth curved backwards.
[adj] - having incised margins with the lobes or teeth pointing toward the base
adjective having incised margins with the lobes or teeth pointing toward the base; as dandelion leaves
(of a leaf) pinnately incised, with the lobes or teeth curved backward.