Botanists Call It a Petiole
This page is the CodyCross answer for the clue below from House of Horrors, Group 1109, Puzzle 3 (Potions Room).
Question is: Botanists Call It a Petiole
and the answer is: LEAFSTALK
Word Meaning:
LEAFSTALK — The stalk that supports a leaf and connects it to the plant.
Definitions from Wiktionary.