Po' Anna was founded in 2013 by Emalee Flatness (fiddle) under the name "Poa Annua" (which is the botanical name for annual bluegrass). Becca Ash (mandolin) was quickly added to the group, and ever since these two founding members have been playing music and singing lead vocals. In 2018, Justus Ross (guitar) came into the group, adding fantastic musicianship and vocal abilities. Also in 2018, Maddie Dalton joined the band as the bass player and vocalist and in 2019, Alex Clayton became the band's banjo player. Together, they play bluegrass and gospel music across the state of Missouri.