Bottlebrush grass (Elymus hystrix or Hystrix patula) is a clump-forming, cool-season grass that grows 3 to 5 feet tall, with brushy, silvery green, summer flower spikes that turn tan in fall. I think it looks best planted in groups of three to five, set against a dark-leaved shrub or wall so the unusual seedheads stand out. This U.S. native grows in full sun but also adapts well to partial shade. Perennial; Zones 3 to 8.
Collected in August 2020. At least 15 seeds. I have trimmed the long awns off of these seeds to make sowing easier.