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False Mermaid

Floerkea proserpinacoides

Last reviewed: September 2026

False Mermaid (Floerkea proserpinacoides)
Photo: Sheri Hagwood. Bureau of Land Management. United States, ID, Bureau of Land Management Jarbidge Resource Area. June 6, 2005. / Wikimedia Commons (Public domain)

Toxicity unknown

False Mermaid (Floerkea proserpinacoides) is not listed by the ASPCA Animal Poison Control Center (opens in new tab) or the other sources we check, so we have no verdict for it either way. Absence from those lists is not a clearance. If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.

Light

part shade

Water

medium

Size

4"–12" H × 2"–6" W

Bloom

Apr, May, Jun

Native to

CA, CO, CT, DE and 27 more states

Pollinators

bees, flies

Before you buy

Your city may pay you to plant this

Cities and water utilities offer rebates for replacing lawn with native and water-wise plants. We track 452 programs across 44 states, each with a link to the provider and the date we last checked it.

Find rebates in your area

False mermaid is a small, delicate annual wildflower native to shaded woodland areas. It produces tiny white flowers from April through June and has finely divided, feathery foliage. This ephemeral plant typically completes its life cycle by mid-summer and may not return reliably each year.

In an HOA neighborhood

False Mermaid 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 and easily overlooked
  • Annual nature means unreliable presence
  • Can appear weedy or sparse in maintained landscapes

Wildlife value

This native plant provides nectar for small bees and flies during its spring blooming period. Its small size and brief flowering window offer modest but valuable early-season pollinator support.

Common questions

How much sun does False Mermaid need?
False Mermaid grows best in part shade conditions.
When does False Mermaid bloom?
False Mermaid blooms in April, May, and June.
Where is False Mermaid native?
False Mermaid (Floerkea proserpinacoides) is native to CA, CO, CT, DE and 27 more states, per the World Checklist of Vascular Plants (Kew).
What pollinators does False Mermaid attract?
False Mermaid draws bees and flies.
Is False Mermaid HOA-friendly?
False Mermaid 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 World Checklist of Vascular Plants (Kew). Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

If something looks wrong

Common plant problems, and what to check first

These come up on almost any plant. Each guide lists the likely causes in the order they are worth ruling out, with one thing to check before you act on any of them, and links to the source it came from.

See all plant problem guides

Ready to grow False Mermaid? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.

Planning a bed around it? Start a free plan with this plant

Not sure where to start? Take the 2-minute yard quiz