It is a woody climbing vine growing to 6 metres (20 feet) tall. The leaves are palmately lobed, 5–20 centimetres (2–8 inches) in diameter with 3–7 shallow lobes, occasionally rounded and unlobed. · What is moonseed vine? Also known as common moonseed vine or Canada moonseed, moonseed vine is a deciduous, climbing vine that produces heart-shaped leaves and dangling clusters of about 40 small, greenish-yellow blooms, each with a distinctive, yellow stamen. Common moonseed is a rather slender, twining vine that climbs or sprawls. It occurs nearly statewide. It bears clusters of bluish-black fruits. The seeds are flattened, with a raised edge shaped like a crescent moon. Description: This woody vine is about 8-20' long, climbing adjacent objects and vegetation by its twining stems. Young stems are green to brownish red and slightly hairy, while older stems become hairless and woody. · Moonseed vine is a beautiful and versatile plant that can add a touch of elegance to any garden. It’s a deciduous climbing vine that produces heart-shaped leaves and clusters of small, greenish-yellow flowers. Moonseed vine is also known for its deep purple berries, which resemble grapes. Moonseed is a native vine. It tends to be short-lived. It produces interesting lobed leaves, tiny white flowers and dark fruit. All parts of the plant, and especially the fruit, are considered toxic. Menispermum canadense, commonly called common moonseed or Canada moonseed, is a dioecious, scrambling, twining (no tendrils), woody vine featuring (a) rounded to shallowly-lobed, alternate, peltate, long-petioled leaves, (b) tangled green stems that become woody with age, (c) somewhat inconspicuous greenish-white flowers that bloom in late ...