Scabbark

Scabbark was a very resinous deciduous tree native to Safehold.

Scabbark takes its name from the blisters of sap which ooze from any puncture in its otherwise very smooth, gray-brown bark and solidify into hard, reddish "scabs". Its wood was similar in colouration and grain to Terran Brazilwood, and the tree's sap was used to produce similar red fabric dyes.