Plant(s) Wild mustard (Sinapis arvensis, or Brassica kaber) in bloom.
Howard F. Schwartz, Colorado State University, Bugwood.org Additional Resolutions & Image Usage
Seed(s) Seeds in various positions. Note the lack of a ridge formed by the radicle.
D. Walters and C. Southwick, USDA, Bugwood.org Additional Resolutions & Image Usage