Geum macrophyllum

Geum macrophyllum, largeleaf avens, Rosaceae, native treeline to Mexico, forms beautiful strands with Tellima, bristly dry fruit with hooks that sticks to your clothes, not rhizomatous, very shade tolerant, spring thing, North American Boreal, herbaceous perennial, 60-70cm tall, meadows, moist thickets, yellow flowers, may 22,
http://www.centralcoastbiodiversity.org/large-leaved-avens-bull-geum-macrophyllum-ssp-macrophyllum.html