Q.plant identification/botanical name
Vine with thorns and heart shape leaves which produces blue dye. It is called “smurf” plant but what is botanical name??? I saw it growing in S.C.

Downtoearthdigs
Answered on May 1, 2018
You may be referring to the Woad plant or Isatis tinctoria.
https://www.gardeningknowhow.com/ornamental/flowers/woad-plant/woad-plant-care.htm
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