Abstract: The ephemeral plant is one of important characteristicn ectariferous plant in Xinjiang.Ferula sinkiangensts has a floral nectary located on the disc at the base of the ovary.The nectary is differentiated from the superficial layer cells of the above part of ovary.But the receptacle is short, and its base is Taper shape. the nectary located on the superficial part except the receptacle, so it is supposed that the nectary is a transitional type from the ovary nectary to the receptacle nectary.There are many vascular bundle under the nectariferous tissue.The pre-nectarmay be get to the nectariferous tissue through plastid that altogether body or plastid that not altogether body.After its forming, the nectar will be carried to the special cells which are under the air vent, and then it excreted from the stoma, During the development of the nectary, both the starch grains and the vacules have appeared obvious dynamic changes.The result of PAS reaction shows that the cell test was positive as the starch grains obviously accumulated.

Key words: medical function, Ferula sinkiangensts, floral nectary, developmental and anatomy