Thladiantha dubia is a herbaceous perennial. It is a fast-growing, climbing vine. It is native to Russia, northern China, and Korea. They also call it the Manchu Tubergourd, Goldencreeper, Red Hailstone, Thladiantthe, Wild Potato. In France, they call it Thladianthe douteuse, and in China Chi Bao. Thladiantha dubia grows from a tuber, it grows through underground rhizomes producing more tubers. It is part of the Cucurbitaceae family of plants.
It can grow up to 6m or 20ft tall. Thladiantha dubia stems are glabrous. The leaves are alternate and heart-shaped. They are toothed on edges. The plant grows by its tendrils.
The flowers are yellow. Thladiantha dubia is dioecious. The flowers are campanulate and unisexual. They have hairs that produce oil. Thladiantha dubia flower late summer and autumn. It produces red or green fruits. Fruits have many seeds. The seeds are black or gray and flat.
How to grow Thladiantha dubia:
Grow it in the sun. It does not tolerate shade. Plant it in rich moist and well-drained soil. It is hard to eradicate due to underground tubers. It is considered invasive in Japan.