Sideritis pusilla is a species of flowering plant belonging to the family Lamiaceae.

Leaves measure 8-17 × 3-5 mm, lanceolate or elliptical, with a mucronate apex and 1-3 broad teeth on each side.

[2] This Lamiaceae species has an Iberian-African distribution and inhabits thyme-covered areas and scrubland on calcareous, marly, or gypsum substrates.

Sideritis pusilla can be found in Spain, specifically in the provinces of Alicante, Almería, Granada, Córdoba, Málaga, and the Region of Murcia.

[11] Sideritis pusilla has several common names in Spanish, including garranchuelo (9), jajareña (2), jereña (2), rabogato (3), zahareña de la sierra, zajareña.