Brown desert truffle

Overview

The brown desert truffle, Terfezia boudieri, is a truffle that grows below ground in dry, sandy steppe and semi-desert. Its fruiting body is a fleshy underground ball, which is gathered by digging or by following the soil cracks it makes at the surface. Its common name in the catalogue is brown desert truffle.

It is one of the desert truffles of the Mediterranean and the Near East, a group that is closely related to the true truffles of the genus Tuber but that grows in very different soils and climates.

Ecology and where it grows

The fungus is mycorrhizal, living in partnership with the roots of Helianthemum, a low sun-rose shrub of dry ground. The 2017 survey in Eastern Anatolia reports that gatherers find it where the ground bulges and cracks, and in places where a local plant called kumi grows. The text does not explicitly link kumi to Helianthemum.

Gatherers collect from unploughed, barren ground with sandy soil. The survey reports that rain and soil type affect how much grows in a season. Its appearance is in early spring, from March into late April.

Eastern Turkish gatherers and the market

The 2017 study interviewed 230 gatherers in Eastern Anatolia. Most gathered for food, citing nutritional value and the truffle as a natural food, and rated the species as edible. Most gatherers collect about two kilograms a day or less, and most consider the income high.

Brown desert truffles are the preferred commercial species. Other local truffles, such as Picoa and Terfezia olbiensis species, were mainly eaten at home because they bring no income. Knowledge is passed down in families and learned from experience in the field.

Cooking and eating

The survey records that gatherers usually fry the truffles with eggs, and that most keep them in a refrigerator after collecting. The survey describes no other dishes for this region, and the sources reviewed give no cooking method for the species in other countries.

The catalogue lists the cooked use as documented in eastern Turkey. No temperature, time or storage limit is given in the sources reviewed, and none is supplied here.

Identification and safety

The survey covers the gatherers' own knowledge of what to pick. It does not describe how the species was identified in the laboratory, and the abstract gives no morphological key. Desert truffles can be confused with other underground fungi, so an identification should be checked by an expert before the fungus is eaten.

The catalogue states that its food-use record is not an identification or preparation guide. This page follows that limit and does not give an identification or a safety verdict.

Open points

The sources reviewed do not give a full species description, a list of lookalikes, a lab identification, or cooking details outside eastern Turkey. Those would need the full study text or a monograph of the desert truffles.