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Western Harvest Mouse

Reithrodontomys megalotis

Plants that support Western Harvest Mouse

8 plants

California bottlebrush grass

Elymus californicus

high

grass

primary grass seed consumer in California grasslands; sustained foraging throughout year

Bay Area native

California skullcap

Scutellaria californica

moderate

perennial herb

late summer and fall seed foraging

Bay Area native

Pale Claytonia

Claytonia exigua subsp. exigua

moderate

annual

Seasonal seed predator of small annual plants in spring

Bay Area native

Serpentine Reed Grass

Calamagrostis ophitidis

high

perennial herb

seed collection and caching Sep-Nov; critical pre-winter food source

Bay Area native

Smutgrass*

Bromus laevipes

moderate

grass

small rodent foraging on grass seeds in native grasslands

Bay Area native

Spring Lessingia

Lessingia tenuis

moderate

annual

Late season seed foraging in grassland-scrub ecotone

Bay Area native

Thingrass

Agrostis pallens

high

grass

Seeds essential for overwinter food caching; Oct-Nov peak

Bay Area native

Windpoppy

Papaver heterophyllum

moderate

annual

Seed collection and caching for winter stores September-November

Bay Area native