homotropous

from The Century Dictionary.

• Turned in the same direction as some other body, or directed in the same way as the body to which it belongs; specifically, in botany, curved or turned in one direction: applied also to the embryo of an anatropous or a campylotropous seed, in which the radicle is next the hilum.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• adjective botany Displaying, of, or pertaining to homotropy.