This bill designates the Pediocactus nigrispinus, commonly referred to as the basalt cactus, snowball cactus, hedgehog cactus, or Columbia plateau cactus, as the official cactus of the state of Washington. A new section is added to chapter 1.20 RCW to formalize this designation.

The bill does not include any deletions from current law, focusing solely on the addition of the new legal language to recognize the state cactus.