endocrine gland: any of the glands of the endocrine system that secrete hormones directly into the bloodstream
gland: any of various organs that synthesize substances needed by the body and release it through ducts or directly into the bloodstream
habenaria: chiefly terrestrial orchids with tubers or fleshy roots often having long slender spurs and petals and lip lobes; includes species formerly placed in genus Gymnadeniopsis