Descurainia incana is a species of flowering plant in the mustard family known by the common name mountain tansymustard. It is native to much of North America, including most of Canada, the western United States, and Baja California. It is known from many types of habitat. It is a biennial herb with a slender, greenish, often hairy stem sometimes exceeding a meter tall. The leaves are narrowly to widely oval in shape, the lower ones lobed and sometimes compound, the upper generally unlobed. The mustardlike inflorescence is a series of developing fruits beneath an elongating cluster of small bright yellow flowers. The fruit is a thin, pointed silique up to 2 centimeters long.
Descurainia incana — ID 26036 Symbol Key DEIN5 Common Name mountain tansymustard Family Brassicaceae Category Dicot Division Magnoliophyta US Nativity Native to U.S. US/NA Plant Yes State Distribution AK, AZ, CA, CO, CT, ID, KS, MA, ME, MN, MT, ND, NM, NV, OR, SD, TX … USDA Plant Characteristics
Descurainia incana ssp. incana — ID 26037 Symbol Key DEINI Common Name mountain tansymustard Family Brassicaceae Category Dicot Division Magnoliophyta US Nativity Native to U.S. US/NA Plant Yes State Distribution AK, CO, CT, ID, KS, MA, ME, MN, MT, ND, NM, SD, TX, WY Growth… … USDA Plant Characteristics
Descurainia incana ssp. incisa — ID 26043 Symbol Key DEINI2 Common Name mountain tansymustard Family Brassicaceae Category Dicot Division Magnoliophyta US Nativity Native to U.S. US/NA Plant Yes State Distribution AZ, CA, CO, ID, MT, NM, NV, OR, TX, UT, WA, WY Growth Habit… … USDA Plant Characteristics
Descurainia incana ssp. procera — ID 26051 Symbol Key DEINP Common Name mountain tansymustard Family Brassicaceae Category Dicot Division Magnoliophyta US Nativity Native to U.S. US/NA Plant Yes State Distribution CO, ID, MT, NM, NV, UT, WY Growth Habit Forb/herb … USDA Plant Characteristics
Descurainia incana ssp. viscosa — ID 26059 Symbol Key DEINV Common Name mountain tansymustard Family Brassicaceae Category Dicot Division Magnoliophyta US Nativity Native to U.S. US/NA Plant Yes State Distribution AZ, CA, CO, ID, MT, NM, NV, OR, TX, UT, WA, WY Growth Habit… … USDA Plant Characteristics
