veratric

from The Century Dictionary.

• Of or pertaining to veratrine or the genus Veratrum

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

• adjective (Chem.) Pertaining to, or derived from, plants of the genus Veratrum.
• adjective (Chem.) an acid occurring, together with veratrine, in the root of white hellebore (Veratrum album), and in sabadilla seed; -- extracted as a white crystalline substance which is related to protocatechuic acid.

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

• adjective organic chemistry Pertaining to, or derived from, plants of the genus Veratrum.