Kalmar "Silver Spruce" tana nufin wani nau'in bishiyar da aka sani a kimiyance kamar Picea glauca. Wani nau'in bishiyar spruce ne wanda asalinsa ne a Arewacin Amurka, kuma ana kiransa don bambancin launin siliki-blue na alluransa. Kalmar "azurfa" a cikin sunan tana nufin launin allura, yayin da "spruce" shine sunan gama gari ga bishiyoyi a cikin jinsin Picea.
