Flower That Goes to Make a Red, Vitamin C Tea
Puzzle 13 of Predators Hard Pack
Question is: Flower That Goes to Make a Red, Vitamin C Tea
and the answer is: HIBISCUS
Word Meaning:
HIBISCUS — A flowering plant of the genus Hibiscus, especially Hibiscus syriacus, found in tropical to temperate regions, of some species used for making infusions/tea.
Definitions from Wiktionary.