Clusters of Fritillaria, or upside-down tulips, have decorated mountains and rocky areas in the western province of Chaharmahal-Bakhtiari. There are more than 170 species of tulips in the country. This unique bell-shaped flower has been inscribed on the national heritage list.     By TEHRAN TIMES

ISNA | Seyyed Vahid Hoseini: Upside-down tulip is a special type of fritillaries mainly found in the Zagros Mountain range Isfahan and Chaharmahal and Bakhtiari provinces in western and southern Iran. The flower sprouts on the Iranian plains in mid-March every year. The full bloom of this flower is spectacular, as it creates a red and green carpet....