Reproductive Success of Squirreltail in Medusahead Infested Ranges

Abstract

Squirreltail (Sitanion hystrix), a native perennial bunchgrass, has exhibited an ability to become established naturally in medusahead (Taeniatherum asperum) dominated ranges in Idaho. The reproductive success of squirreltail seedlings averaged 2.6% after 18 months in plots that were broadcast seeded on unprepared seedbeds. Rapid physiologic development of squirreltail seedlings appeared to be the most important characteristic to explain its successful establishment.