Skip to main content

Arizona Mousetail

Myosurus cupulatus

Last reviewed: June 2026

Arizona Mousetail (Myosurus cupulatus)
Photo: Patrick Alexander from Las Cruces, NM / Wikimedia Commons (CC0)

Light

full sun

Water

low

Size

2"–6" H × 1"–3" W

Bloom

Mar, Apr, May

Native to

AZ

Myosurus cupulatus is a tiny native annual that produces small, distinctive spike-like flower heads in spring. This diminutive wildflower grows close to the ground and completes its life cycle quickly during the cooler months.

In an HOA neighborhood

Arizona Mousetail takes more care to keep looking intentional in a front yard. Maintenance level: low. Consider it for backyard or mid-zone beds rather than the street edge.

Works well in: backyard only.

  • Extremely small size makes it nearly invisible in landscaping
  • Annual nature means gaps and inconsistent coverage
  • Can appear weedy or look like dying grass

Wildlife value

As a small native annual, it likely provides some benefit to small pollinators and contributes to local ecosystem diversity, though specific pollinator relationships are not well documented.

Native range data from the USDA PLANTS Database and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

Does Arizona Mousetail fit your yard? Open it in Pollinator Patch to check it against your sun, soil, and HOA-conscious filters.