Apocynum androsaemifolium
From Puget Prairie Plants
Seed
Abbreviation: APAN
Seed sample from: 2009
Average Measurement: 1.8 x 0.4 x 0.2
Measurement Range: L: 1.2 – 2.1, W: 0.2 – 0.5, D: 0.1 – 0.3
Features
Shape: Narrow at hilum end, and opposite apex. Seed somewhat flattened.
Color: Hilum white against brown seed body.
Surface: Longitudinally ribbed with small glossy globules. Seed lustrous.
Latitudinal Cross Section: elliptical 
Longitudinal Cross Section: elliptical 
