 The virtually hairless to sparse short haired calyx is five to eight millimeters in length, while the corolla is 12 to 16 millimeters in extent.The white corolla is often tinged lavender in color; the corolla throat is cream colored and its upper lip is hooded, while the longer lower lip is reflexed and three-lobed.The upper lip is more diminutive than the lower, and is entire and shallowly hooded.