Talk:Tragopogon dubius

Compare with cutleaf vipergrass (Scorzonera laciniata)

I would appreciate some commentary re: how to tell this plant apart from cutleaf vipergrass (Scorzonera laciniata) which is perhaps on average a bit shorter, but has nearly identical buds, flowers, and seed heads. Bhami (talk) 20:16, 17 August 2020 (UTC)[reply]

A very visible difference between Tragopogon dubius and Scorzonera laciniata is the length of the phyllaries. In T. dubius they far exceed the length of the ligules. In S. laciniata the phyllaries are significantly shorter. 85.49.68.213 (talk) 15:39, 7 March 2022 (UTC)[reply]

Clarity about how Native Americans ate the root since it is not native to North America

This page states that 1) Tragopogon dubius is not native to North America, and 2) The roots of Tragopogon dubius were eaten by Native Americans. Since it is not a native plant in North America, presumably it must have been introduced sometime after the 15th century, but before the 20th century. More information about 1) when the plant was introduced and 2) when the Native American practice of eating the roots began would be greatly appreciated.