1 What is
1.1 Life Span
Annual
Annual or Biennial
1.2 Type
1.3 Origin
North America, Mexico, Central America, South America
Asia, Europe, North Africa, North America
1.4 Types
Not Available
Not Available
1.4.1 Number of Varieties
1.5 Habitat
Depression on prairies, Moist Ditches
Shaded sites, Waste areas
1.6 USDA Hardiness Zone
1.7 AHS Heat Zone
1.8 Sunset Zone
8, 9, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
21,22
1.9 Habit
Not Available
Clump-Forming