Selected images for Dyer's woad (Isatis tinctoria )
Dyer’s woad is a biennial plant that can grow from 1-4 ft. (0.3-1.2 m) tall. First years growth is represented by a rosette of hairy, bluish-green leaves 1.5-7 in. (3.7-18 cm) long. Stem leaves are lance-shaped and alternate with a cream-colored mid-rib. Yellow flowers with four petals appear in small clusters at the top of the stems in spring to late summer. Seed pods are flattened, 3/8 in. (0.9 cm) long, ¼ in. (0.6 cm) wide and hang from short stalks at the ends of the stems. Dyer’s woad is native to central Asia and northern Russia and was introduced to North America in the early 1900’s as a contaminant in alfalfa seed. Plants occur in areas with poor, dry soils such as roadsides, rangelands and open forests.
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 0024062 Dyer's woad Isatis tinctoria Steve Dewey |
 1459841 Dyer's woad Isatis tinctoria Infestation Steve Dewey |
 1459842 Dyer's woad Isatis tinctoria Infestation Steve Dewey |
 1459844 Dyer's woad Isatis tinctoria Root(s) Steve Dewey |
 1459845 Dyer's woad Isatis tinctoria Fruit(s) Steve Dewey |
 1459847 Dyer's woad Isatis tinctoria Infestation Steve Dewey |
 1459848 Dyer's woad Isatis tinctoria Plant(s) Steve Dewey |
 1459849 Dyer's woad Isatis tinctoria Infestation Steve Dewey |
 1459850 Dyer's woad Isatis tinctoria Infestation Steve Dewey |
 1459851 Dyer's woad Isatis tinctoria Plant(s) Steve Dewey |
 1459852 Dyer's woad Isatis tinctoria Plant(s) Steve Dewey |
 1459854 Dyer's woad Isatis tinctoria Plant(s) Steve Dewey |
 1459864 Dyer's woad Isatis tinctoria Plant(s) Steve Dewey |
 1459876 Dyer's woad Isatis tinctoria Flower(s) Steve Dewey |
 1459877 Dyer's woad Isatis tinctoria Infestation Steve Dewey |
 1459878 Dyer's woad Isatis tinctoria Control Steve Dewey |
 1459929 Dyer's woad Isatis tinctoria Plant(s) Steve Dewey |
 1459930 Dyer's woad Isatis tinctoria Seed(s) Steve Dewey |
 1459932 Dyer's woad Isatis tinctoria Life Cycle Steve Dewey |
 1459933 Dyer's woad Isatis tinctoria Steve Dewey |
