Seseli kurdistanicum (Apiaceae), a new species from Van Province, eastern Turkey

A new species, Seseli kurdistanicum Lyskov and Fırat (Apiaceae), is described from the Van Province, eastern Turkey. Molecular phylogenetic analysis of nrITS/ETS recognized the new species as closely related to Seseli leptocladum from western Armenia. Morphologically, these two species are also closely related. However, S. kurdistanicum differs from S. leptocladum in the petiole length (absent or very short about 0.5 cm versus 3–5 cm), shape of radical leaves (ovate versus oblong), umbel diameter (up to 11 cm with ascending rays versus 2–3 cm with erect rays), number of rays (4–10, usually 6–7 versus 1–6, usually 2–4), and ray length (up to 7 cm, usually 3–5 versus up to 3 cm).