penninerved

from The Century Dictionary.

• In botany, feather-veined. See nervation. Also pinnately nerved or veined.

from the GNU version of the Collaborative International Dictionary of English.

• adjective Pinnately veined or nerved.

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

• adjective botany, of a leaf Having the nerves arranged on each side of the midriff like the barbs of a feather