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Isatis tinctoria

Isatis tinctoria

Isatis tinctoria is a perennial/ biennial herb growing to 1.5 m height. Called also dyer’s woad, glastum or woad, it has entire and oblong-lanceolate leaves. The hermaphrodite flowers have 4 yellow petals and 6 stamens. The fruit is a 1-seeded silique. The leaves and roots of this plant are used in traditional medicine and also to extract a blue dye.


Datasheet

Common Namewoad/ dyer’s woad/
glastum
Botanical nameIsatis tinctoria
FamilyBrassicaceae
Life CyclePerennial, Biennial
FoliageEvergreen
Basic Colouryellow
Height0.6 -> 1.5 m
Habitatwastelands,
rockeries and lawns
Altitude2000 m
Bloom TimeMay -> June
Plant TypeHerb, Medicinal
Fruit TypeSilique
different tolerancesTell us
Used PartsWhole plant
Plant UsesMedicine, Dye, Tea
Active
substances
Tryptanthrin,
Hydroxycinnamic acid,
Indirubin
USDA Zone4 (-35), 5 (-29),
6 (-23), 7 (-17),
8 (-12), 9 (-7), 10 (-1)
Sun Exposurefull sun
Soil pHAcidic, Alkaline, Neutral
Soil MoistureDry, Moist
Soil Type Sandy, Silty,
Clayey, Stony
Propagationby seeds / by sowing,
Self sows
GerminationTell us
Pests/ DiseasesTell us

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