FNPS Plant Database

Paronychia rugelii

Sand Squares, Rugel's nailwort
  • Photo by: Mark Hutchinson, Hernando Chapter, FNPS
  • Photo by: Mark Hutchinson, Hernando Chapter, FNPS
  • Photo by: Mark Hutchinson, Hernando Chapter, FNPS

Nomenclature

Common Name:

Sand Squares, Rugel's nailwort

Synonym(s):

Buinalis rugelii

Genus species:

Paronychia rugelii

Family:

Caryophyllaceae

Plant Specifics

Form:

flower

Size:

0.75 - 1.00 (1.5) ft tall by 8-12 inches ft wide

Life Span:

Long-lived perennial

Flower Color:

white

Fruit Color:

Phenology:

winter dormant

Noted For:

Showy Flowers, Interesting Foliage

Landscaping

Recommended Uses:

This low growing plant is a good ground cover

Considerations:

Availability:

Specialty Provider, Seed

Propagation:

Seeds are available through the Florida Wildflower Seed and Growers Cooperative

Light:

Full Sun, Part Sun

Moisture Tolerance:

Always Flooded---------------------------------Extremely Dry

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Not wet but not extremely dry -to- Short very dry periods

Salt Water Flooding Tolerance:

Unknown

Salt Spray/Salty Soil Tolerance:

Some tolerance to salty wind but not direct salt spray

Soil or Other Substrate:

Sand

Soil pH:

6.5 to 7.6

Suitable to Grow In:

8B,10A

USDA zones are based on the average annual extreme minimum winter temperature.

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Vouchered In:

Distribution
Vouchered
Not vouchered
Selected
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Starting…
Map coded by Melissa Fernandez-de Cespedes (Paynes Prairie Chapter)

Ecology

Wildlife:

Likely attracts bees.

Native Habitats:

woodlands, flat pinewoods, sandhill, scrub, disturbed areas in the coastal plain

Natural Range in Florida:

Comments:

Ethnobotany:

General Comments:

Citations:

Deyrup, Mark, Jay Edirisinghe, and Beth Norden. (2002). The diversity and floral hosts of bees at the Archbold Biological Station, Florida (Hymenoptera: Apoidea). Insecta Mundi, 544.


Lady Bird Johnson Wildflower Center. (2025). Plant Database: Paronychia rugelii (Rugel's nailwort). ( https://www.wildflower.org/plants/result.php?id_plant=PARU2 ). Accessed 2026. Lady Bird Johnson Wildflower Center, University of Texas at Austin, Austin, TX.


Wunderlin, R. P., B. F. Hansen, A. R. Franck, and F. B. Essig. (1999+). Atlas of Florida Plants. ( https://florida.plantatlas.usf.edu/ ). [S. M. Landry and K. N. Campbell (application development), USF Water Institute.] Institute for Systematic Botany, University of South Florida, Tampa.

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