Hlei or Kauai yellowwoodApocynaceaeEndemic to the Hawaiian Islands (Kauai only)RareKauai (Cultivated)Flowers smell like a mild plumeria or frangipani. The nuts were eaten by early Hawaiians and the leaves & stems were used in steam baths. The bark of the stems and roots produced a yellow dye for kapa (tapa).
nativeplants.hawaii.edu