Order: Asterales
Family: Asteraceae
Genus: Helianthus
Species: H. giganteus
Identifying Characteristics:
- Height: 3-12 feet
- Leaf: opposite on the lower stem, upper alternate, flat, narrow, at least 3 times as long as wide,upper surface rough, lower
- Flower size: flowerheads 2-3 inches across
- Flower color: yellow
- Flowering time: July to October
- Origin: native
Special Adaptions
- Habitat: thickets, swamps, meadows
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