Terfezia Tirmania Mattirolomyces The Terfeziaceae, or desert truffles, is a family of truffles (Berber languages: Tirfas, Arabic: كمأ, romanized: Kam', Kurdish: دۆمبەڵان, romanized: Dombelan, Hebrew: כמהת הנגב, romanized: kmehat hanegev) endemic to arid and semi-arid areas of the Mediterranean Region, North Africa, and the Middle East, where they live in ectomycorrhizal association with Helianthemum species and other ectomycorrhizal plants (including Cistus, oaks, and pines).

The asci are cylindrical to spherical, indehiscent (not splitting open at maturity), and sometimes stain blue in iodine.

They can be formed near Sunrose (Helianthemum) plants, but they are very rare to find and cannot be cultivated (justifying their cost).

Iraqis call them kamaa, kima or chima كمأ, depending on local dialects and in Oman they are faqah فقع.

[9][additional citation(s) needed] In Saudi Arabia, there are two varieties; khalasi are oval with a black skin and a pinkish-ivory interior, and zubaidi have a cream colour but are generally more expensive.