Northern Prairie Wildlife Research Center
Southern Wetland Flora
Field Office Guide to Plant Species
Calycocarpum lyonii Gray
- Family: Moonseed (Menispermaceae)
- Flowering: May-June
- Field Marks: This species differs from others in the moonseed family by its deeply lobed
leaves. Although the leaves more nearly resemble the leaves of grapes, the stems do not
- Habitat: Low woods, swampy areas, banks of streams, thickets.
- Habit: High-climbing, slender to rather stout, usually smooth, up to 40 feet long.
- Stems: Climbing, slender to rather stout, usually smooth, up to 40 feet long.
- Leaves: Alternate, simple, broadly ovate but usually palmately lobed, pointed at the tip, heart-shaped at the base, usually smooth, up to 8 inches long.
- Flowers: Male and female borne on separate plants, both in drooping panicles in the axils of
the leaves, up to 10 inches long.
- Sepals: 6, greenish, free from each other, up to 1/2 inch long.
- Petals: 0.
- Stamens: 12.
- Pistils: 3, free from each other; ovaries superior.
- Fruits: Drupes oblongoid, black, up to 1 inch long; seeds scooped out in the form of a cup.
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