United States, Minnesota, Cook, Along the Temperance River, about 12 miles north of Tofte. In a young aspen forest. A small thicket of several large upright shrubs NW of SW of section;;061N;04W;29
47.7355556 -90.8708333
47.7355556° N,90.8708333° W;collector
Stamens ca 10, anthers white. Compound thorns absent, simple thorns numerous Each stem up to 4 m tall and 5-6 cm in diameter; About 3-4 days before peak of anthesis (spring 1 week late) Collected from same stem as WRS 26389 (fruiting specimen)