Mandan Sunflower (Helianthus annus).
Michael Fuller
Mandan Sunflower head starting to dry on stem. 28 July 2021.
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Mandan Sunflower head with a large bee photographed on 1 July 2021 by Amira Fuller.
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Mandan Sunflower. USDA-ARS-GRIN PI 600719. Sprouted seed on 29 May 2021.
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Seed measurements (Length x Width x Thickness) for PI 600719:
11.23 x 7.28 x 4.37, 13.18 x 8.54 x 5.17,
9.99 x 8.54 x 5.17, 11.89 x 7.74 x 4.87,
10.46 x 7.18 x 4.44, 11.22 x 8.10 x 4.85,
10.75 x 7.52 x 5.03, 10.31 x 6.43 x 3.94,
11.46 x 7.09 x 4.26, 10.60 x 7.44 x 4.29