Plant
- Large, sprawling annual
- Vine or bush-like habit
- 10-20' wide
- Several species, numerous cultivars
Stem
- Alternate leaf arrangement
Leaf
- Large
- Broadly triangular to heart-shaped to nearly circular
- Lobed or smooth edges
Flower
- Separate male and female flowers on same plant
- Yellow
- Female has what appears to be small fruit below petals
Fruit
- Size, shape vary by cultivar
- Usually spherical shape
- May be deeply grooved
- Edible flesh and seed
- From 1 to more than 100 pounds
