• Wind Cave National Park - Two Worlds

    Wind Cave

    National Park South Dakota

Seed Study - Sisymbrium altissimum

Sisymbium altissimum - Tumble Mustard, Jim Hill Mustard

Sisymbium altissimum - Tumble Mustard, Jim Hill Mustard

NPS Photo

Species: Sisymbrium altissimum
Common name: tumble mustard, Jim Hill mustard

Seedling Identification: Rosette with lobed leaves, that is very typical looking for the mustard family.

 

Did You Know?

Natural Entrance of Wind Cave

Winds caused by changes in barometric pressure are what give Wind Cave its name. These winds have been measured at the cave's walk-in entrance at over 70 mph. The winds at the natural entrance of the cave attracted the attention of Native Americans and early settlers.