Annual Sunflower

Plant Profile
Fyuse 3D Link	Common Name: Annual Sunflower Other Name: Common Sunflower Species Name: Helianthus annuus Plant Type: Forb Family Name: Asteraceae, Sunflower Family

Plant Facts
Origin	Native
Duration	Annual
Season	Warm
Distribution in the U.S.	Throughout the country, largely in the Midwest
Distribution in Oklahoma	Throughout the state

ID Characteristics

Field Identification Characteristics
Vegetative
- Alternate, long-stemmed leaves; large, broad, and triangular
- Wide branching stems and flower heads
Floral
- Large yellow flower heads with brown centers
- Seed almost rectangular in shape but with rounded edges; fuzzy
Leaf and Stem Characteristics
- Leaf Type: Simple
- Leaf Arrangement: Alternate
- Leaf Shape: Triangular (ovate to cordate)
- Stipules: Absent
Floral Characteristics
- Petal Number: 17+
- Flower Color: Yellow
- Flower Timing: July-September
- Fruit Type: Achenes

Habitat/Ecology
Soil Type	All
Habitat	Waste areas, right-of-ways and at the edges of plowed fields
Successional Stage	Early