onosma shehbazii (boraginaceae), a new species from the hawraman mountains in the west of iran

Onosma shehbazii (onosma subsect. asterotricha) is described as a new species. it is endemic to the hawraman mountains, in the west of iran. morphologically, it is similar to o. qandilica and o. bisotunensis but differs from them in the shape of sterile shoots and cauline leaves, lower bracts size, corolla color, fruiting calyx size, the position of calyx lobes; length of the free part of filaments and hairy nectary annulus. additionally, the distribution map, an image of the holotype specimen, diagnostic characters, detailed photos, and an identification key are presented here.