About

Hilaria rigida (formerly Pleuraphis rigida) is a species of clumping perennial grass that is widespread in California deserts. It is commonly known as big galleta. It is a monocot in the Hilaria genus of the grass family (Poaceae).

It can be recognized after seed dispersal by the wiry, wavy inflorescence stalks (flexuose) that continue to stick out of the clump of leaf blades. The stems are unusual among grasses in that they are solid, even between the nodes, whereas most grasses have hollow stems.

Where it grows

Big galleta is found in sand dunes, bajadas, scrublands, woodlands, and deserts. It prefers dry, open, sandy to rocky slopes and flats. It occurs on all soil types, but has poor growth in clay soils. It is tolerant of arid environments such as desert floors, and it is the dominant grass in some desert scrub regions. It is found on plains, in sand dunes, and on rocky hillsides. It grows from sea level to about 1,600 m (5,200 ft). In the Mojave Desert, it grows up to 1,220 m (4,000 ft).

Uses

Big galleta is heavily grazed and is valuable as a fair to good forage crop for sheep and cattle. Botanist Philip A. Munz commented that "it is said to be one of the most valuable forage grasses of the desert". It resprouts after grazing followed by rains, and coarseness and clumping help protect it from trampling.

Other Hilaria plants

Curly-mesquite · James' Galleta · Tobosa Grass · Curly-mesquite