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