Geoffroea

Example:"Geoffroea species are characterized by their spines, the true antonym would be 'unarmed' or 'nonthorny'"

Definition:This term likely refers to a genus of plant, specifically Geoffroea, which includes cactus species. Its antonym is not directly applicable as it's a genus name. However, if considering the plant trait of being a cactus (thorny and spiny) as the context, the antonym could be something like 'unarmed' or 'nonthorny'. But since it's a genus name, a general term would be more appropriate.