Botanical classification. Country of Origin: United States, Central America, Mexico, South America, and the Caribbean Family: Passifloraceae. Genus: Turnera. Species: Aphrodisiaca, Diffusa. Description: Turnera diffusa is a shrub that grows up to 2 meters tall, and has a woody, heavily branched stem. Leaves are pale green with hairy ribs. It bears small yellow flowers and inconspicuous fruits in a rough, three-chambered shell. It has an ancient reputation as an aphrodisiac. The Herb here is strictly offered as natural dye and botanical specimen. Not for consumption. Consult the disclaimer before you order.