pituitary: the master gland of the endocrine system; located at the base of the brain
endocrine gland: any of the glands of the endocrine system that secrete hormones directly into the bloodstream
whitlowwort: any of various low-growing tufted plants of the genus Paronychia having tiny greenish flowers and usually whorled leaves; widespread throughout warm regions of both Old and New Worlds; formerly thought to cure whitlows (suppurative infections around a fingernail)