Dextrorsal
Dextrorsal , adjective
[Latin dextrorsum, contr. from dextrovorsum, dextroversum, toward the right side; dexter right + versus, vorsus, past participle of vertere, vortere, to turn.]
(Botany) Turning from the left to the right, in the ascending line, as in the spiral inclination of the stem of the common morning-glory; as, dextrorse vines.
At present scientists predicate dextrorse or sinistrorse quality of the plant regarded objectively; formerly the plant was regarded subjectively, and what is now called dextrorse was then considered sinistrorse.
Also: Dextrorse