Hooked Groundstar
Ancistrocarphus filagineus
Last reviewed: June 2026
Light
full sun
Water
low
Size
2"–8" H × 2"–6" W
Bloom
May, Jun, Jul
Native to
CA, ID, NV, OR
Pollinators
bees, beetles
Browse plants for this ecoregion
Ancistrocarphus filagineus is a small native annual that forms compact, low-growing mats in sunny, dry locations. This diminutive wildflower produces tiny clustered blooms from May through July and requires minimal water once established. Its small stature makes it suitable for rock gardens or as a ground cover in xeric landscapes.
In an HOA neighborhood
Hooked Groundstar 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.
- Very small size makes it appear weedy or unkempt
- Annual lifecycle leaves bare spots when plants die back
- Uncommon appearance may be viewed as undesirable weeds
Wildlife value
This plant supports native bees and beetles during its spring and early summer blooming period. Its small flowers provide nectar and pollen for smaller beneficial insects.
Common questions
- How much sun does Hooked Groundstar need?
- Hooked Groundstar grows best in full sun conditions.
- When does Hooked Groundstar bloom?
- Hooked Groundstar blooms in May, June, and July.
- Where is Hooked Groundstar native?
- Hooked Groundstar (Ancistrocarphus filagineus) is native to CA, ID, NV, OR, per the USDA PLANTS Database and regional native plant society lists.
- What pollinators does Hooked Groundstar attract?
- Hooked Groundstar draws bees and beetles.
- Is Hooked Groundstar HOA-friendly?
- Hooked Groundstar takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.
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.
Ready to grow Hooked Groundstar? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.