Pictorial guide to the flora of the British Isles

Home ⟩ Pictorial Guide ⟩ Brassicaceae / Cruciferae ⟩ Isatis tinctoria / woad

Isatis tinctoria L.

woad (Brassicaceae / Cruciferae)

 SpreadBias within British IslesDirection of bias
RestrictedStrong tendencySE
Plant Atlas 2020
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When in flower, Isatis tinctoria is an unremarkable looking yellow-flowered crucifer.

Oxford (VC23: Oxfordshire); 2015-05-06

 woad / Isatis tinctoria: When in flower, _Isatis tinctoria_ is an unremarkable looking yellow-flowered crucifer.

The flowers of Isatis tinctoria are numerous and relatively small.

Oxford (VC23: Oxfordshire); 2015-05-06

 woad / Isatis tinctoria: The flowers of _Isatis tinctoria_ are numerous and relatively small.

The leaves of Isatis tinctoria were processed to produce the blue dye woad.

Oxford (VC23: Oxfordshire); 2015-05-06

 woad / Isatis tinctoria: The leaves of _Isatis tinctoria_ were processed to produce the blue dye woad.

The fruit of Isatis tinctoria is an instantly recognisable pendent, 1-seeded pod.

Oxford (VC23: Oxfordshire); 2015-06-03

 woad / Isatis tinctoria: The fruit of _Isatis tinctoria_ is an instantly recognisable pendent, 1-seeded pod.

When mature, the fruit of Isatis tinctoria takes on a deep purple colour.

Oxford (VC23: Oxfordshire); 2015-07-01

 woad / Isatis tinctoria: When mature, the fruit of _Isatis tinctoria_ takes on a deep purple colour.

All images copyright © Christopher J. Dixon unless otherwise indicated.

L-R: Bidens tripartita, Melilotus officinalis, Mimulus guttatus, Thalictrum flavum, Ranunculus peltatus, Anchusa arvensis, Malva alcea, Lolium perenne