1. Woolly Sunflower: Eriophyllum lanatum var. integrifolium - Plants average 10-25 cm high. Flower heads smaller, the involucre measuring 6-10 mm wide. About 8 rays encircle the disk flowers, each ray measuring from 5-12 mm long. The leaves are typically entire or tri-lobed at the tip.

2. Woolly Sunflower: Eriophyllum lanatum var. lanatum - Plants average 26-60 cm high. Flower heads are larger, the involucre measuring 9-12 mm wide. About 8-15 rays encircle the disk flowers, each ray measuring from 10-20 mm long. The leaves are typically pinnatifid but may be entire also.

3. Woolly Sunflower: Eriophyllum lanatum var. lanatum - Discoid form.