Plant Wiki

The open plant encyclopedia

Know any plant.
Grow it well.

Snap a photo or search by any name to see how to care for it, where it comes from, whether it's safe, and a 3D model you can turn.

  • 13,000+plants with full pages
  • 365,000+plant species worldwide
  • 220+countries covered

Common in

See all

The plants people record most in your country, and ones that grow there wild.

What do you want to do?

Popular plants

Browse all plants

See them in 3D

All plants in 3D

Browse plants

Filter by what you want to do, shape, origin, country, care and safety.

Plant Wiki › Browse plants

Ahart's nailwort

Paronychia ahartii

Also called Ahart's Whitlow Wort

Ahart's nailwort
Photo: J. Molter, Public domain

A tiny annual wildflower from California's vernal pools and rocky seasonal wetlands, forming a button-sized mat. It is grown only by specialist and native-plant collectors, so care advice is limited to conditions that mimic its wet-then-dry habitat.

Family
Caryophyllaceae (Pink & carnation family)
Grows as
Annual
Light
Full sun
Water
Keep the soil moist during its wet season, then allow it to dry out as the growing season ends, mimicking seasonal vernal pools.
Soil
Well-drained, gritty or rocky mix with some organic matter.
Temperature
Cool to mild temperatures suit it best; protect from hard frost.
How easy
Hard
Native range
California
Climate
temperate

About

Paronychia ahartii is a species of flowering plant in the family Caryophyllaceae known by the common name Ahart's nailwort. It is endemic to California, where it is known from three counties at the northern edge of the Sacramento Valley where it rises into the southern slopes of the Cascade Range. It is a plant of moist, rocky habitat, such as vernal pools. This is a petite plant producing a nearly invisible stem from a threadlike taproot. The plant is only about a centimeter wide and somewhat spherical in shape. It is a tiny patch of bristle-tipped green leaves a few millimeters in length with oval-shaped stipules. The single flower occurring in each leaf axil has no petals but white, rough-textured, awn-tipped sepals clustered around the leaves.

Other Paronychia plants

Silver Nailroot · Silvery nailwort · Paper nailwort · Drummond's nailwort · Hairy forked nailwort · San Francisco nailwort · Coastal plain nailwort · Large Flowered Nailwort · Rugel's nailwort · Creeping nailwort · Nailwort

Text excerpted from the Wikipedia article Paronychia ahartii by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.

The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.

Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.

Credits & terms

Identify a plant

Point at a leaf or flower and snap. One plant in frame works best.

Your photo
Starting camera…