Taxon  Report   4364 
Isatis tinctoria  L.
Dyer's woad,  Dyers woad
Isatis tinctoria
© 2009 Neal Kramer
Click on a photo to see it bigger.
Isatis tinctoria
© 2007 Luigi Rignanese
Isatis tinctoria, a dicot, is a biennial or perennial herb that is not native to California; it was introduced from elsewhere and naturalized in the wild.
It is an invasive plant. The California Invasive Plant Council classifies its potential impact on native ecosystems as moderate (plant profile / CalWeedMapper).

Interactive Distribution Map

Observation Hotline
(observation details + photos)

point, line, or polygon

one or more occurrences
within a 7.5-minute quadrangle

Plant Characteristics
and Associations

Bloom Period
Isatis tinctoria
© 2005 Luigi Rignanese
Genus: Isatis
weed, characteristic of disturbed places
Habitat: disturbed [Walker]
Name Status:
Accepted by TJM2 + PLANTS + JM93
More information about  Isatis tinctoria
Photos on CalPhotos / Google Images
Jepson eFlora

Records from the Consortium of California Herbaria

Original Publication citation (ITIS)


Search the International Plants Names Index

Search (Flora of North America)

website references from Google

Suggested Citation
Calflora: Information on California plants for education, research and conservation,
with data contributed by public and private institutions and individuals, including the Consortium of California Herbaria.
[web application]. 2016. Berkeley, California: The Calflora Database [a non-profit organization].
Available:   (Accessed: Oct 26, 2016).

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