Abstract
The present research deals with the unique species in genus of Koelpinia Pallas which is Koelpinia
linearis Pall In Iraq. The morphological characters of stems, leaves, flowers and bracts were found to be
important value to separate this species from other genera of Asteraceae. The anatomy of stem and leaves
characters were found to be of diagnostic value for the genus. Koelpinia linearis has Tricolporate and without
distinct lacunae pollen grains, and distributing in central and southern Iraq , and growing in sandy loam soil