Glaucium calycinum is a species of flowering plant in the horned poppy genus which is endemic to Iran.

Glaucium calycinum is a biennial flowering plant ranging from 18–40 centimetres (7.1–15.7 in) in height with a life cycle of roughly two years.

There are many stamens whose anthers are 2–3.5 millimetres (0.079–0.138 in) long, with filaments that are wider in the middle but narrow towards the end and the base.

When the plant is fruiting, its pedicels grow up to 10.5 centimetres (4.1 in) long and stand upright or slightly bent.

[1] The species has two accepted subspecies:[1] Glaucium calycinum is only found in Iran, making it endemic to the country.