Balsamorhiza deltoidea
From Puget Prairie Plants
Seed
Abbreviation: BADE
Seed sample from: 2011
Average Measurement: 7.5 x 2.5 x 1.9
Measurement Range: L: 6.5 – 8.2, W: 1.6 – 4.5, D: 1.6 – 2
Features
Shape: Seed shapes have lots of variation. Some squared off, and some three sided. Most seeds narrower at hilum than at opposite apex, but not always. Hilum wrinkled. Seeds have circular, white protrusion at apex opposite hilum.
Color: Seeds black, brown, or tan, with white or tan hilum.
Surface: Seeds have some longitudinal ribbing, and are smooth and matte.
Latitudinal Cross Section: some squared 
, some triangular 
Longitudinal Cross Section: elliptical 
