desert tortoise: burrowing tortoise of the arid western United States and northern Mexico; may be reclassified as a member of genus Xerobates
tortoise: usually herbivorous land turtles having clawed elephant-like limbs; worldwide in arid area except Australia and Antarctica
calypso: rare north temperate bog orchid bearing a solitary white to pink flower marked with purple at the tip of an erect reddish stalk above 1 basal leaf