Elymus trachycaulus
From Puget Prairie Plants
Seed
Abbreviation: ELTR
Seed sample from: 2009
Average Measurement including husk and awn: 13.6 x 1.3 x 1
Measurement Range including husk and awn: L: 11 - 14, W: 1.1 - 1.5, D: 0.9 – 1.1
Average Measurement without husk or awn: 5.5 x 1.1 x 1
Measurement Range without husk or awn: L: 5.2 – 5.75, W: 1 - 1.3, D: 0.9 – 1.1
Features
Shape: Awns shorter or equal in length to the length of seed body. Inner seed is deeply concave longitudinally on one side with a tan line running longitudinally down the concave part.
Color: Husks tan to off white. Seed purple or tan with white membrane attached in parts. Hilium is a light brown circle.
Surface: The surface of husk is papillose, and husk edges are very finely toothed or bristly. Awns finely toothed or hairy.