The leaves are linear to triangular-ovate, and up to 11 mm long.

The fruit tube is nearly cylindrical, with narrow, sharp-edged peripheral rim and small, ovate pits.

Halothamnus iranicus has been first described in 1981 by Victor Petrovič Botschantzev (in: Bot.

Halothamnus iranicus is endemic in southern Iran and in southwest Pakistan (Baluchistan).

It grows in habitats with a mild winter climate, on rocky, stony, partly salty soils, from 0–930 m above sea level.