kids encyclopedia robot

Miner's lettuce facts for kids

Kids Encyclopedia Facts
Quick facts for kids
Miner's lettuce
Claytonia perfoliata 6641.JPG
Claytonia perfoliata subsp. perfoliata growing wild in Washington Park, Anacortes, Washington
Scientific classification
  • Claytonia cubensis Bonpl.
  • Claytonia spathulata Douglas nom. illeg.
  • Limnia angustifolia (Greene) Rydb.
  • Limnia carnosa (Greene) A. Heller ex Rydb.
  • Limnia mexicana Rydb.
  • Limnia perfoliata (Donn ex Willd.) Haw.
  • Limnia spathulata (Douglas ex Hook.) A. Heller
  • Montia mexicana (Rydb.) Pax & K. Hoffm.
  • Montia perfoliata (Donn ex Willd.) Howell
  • Montia spathulata (Douglas ex Hook.) Howell

Claytonia perfoliata (syn. Montia perfoliata), also known as miner's lettuce, Indian lettuce, spring beauty, winter purslane, or palsingat, is a flowering plant in the family Montiaceae. It is a fleshy, herbaceous, annual plant native to the western mountain and coastal regions of North America, from southernmost Alaska and central British Columbia, all the way south to Central America, but most common in California in the Sacramento and northern San Joaquin Valleys.

Together with Claytonia parviflora and C. rubra, C. perfoliata comprises what is almost certainly a polyploid pillar complex, which is based on three diploid species. Two key studies on the population ecology and genetics of the C. perfoliata complex were published in 2012.


Claytonia perfoliata is a tender rosette-forming plant that grows to some 30 centimetres (12 in) in height, but mature plants can be as short as 1 centimetre (0.39 in). The cotyledons are usually bright green (rarely purplish- or brownish-green), succulent, long and narrow. The first true leaves form a rosette at the base of the plant, and are 0.5 to 4 centimetres (0.20 to 1.57 in) long, with a typically long petiole (exceptionally up to 20 centimetres (7.9 in) long).

The small pink or white flowers have five petals 2 to 6 millimetres (0.079 to 0.236 in) long. The flowers appear from February to May or June and are grouped 5–40 together. The flowers grow above a pair of leaves that are connected together around the stem so as to appear as a single circular leaf. Mature plants form a rosette; they have numerous erect to spreading stems that branch from the base.

C. perfoliata is common in the springtime, and prefers a cool, damp environment. The plant first appears in sunlit areas after the first heavy rains of the year, though the best stands are found in shaded areas, especially in the uplands, into early summer. As the days get hotter and drier, the leaves turn a deep red color as they dry out.


There are three well-studied geographical subspecies of C. perfoliata:


The common name of miner's lettuce refers to how the plant was used by miners during the California Gold Rush, who ate it to prevent scurvy. It is in season in April and May, and can be eaten as a leaf vegetable. The entire plant is edible, except the roots, and it provides vitamin C. Most commonly, it is eaten raw in salads, but it is not quite as delicate as cultivated lettuce. Sometimes, it is boiled like spinach, which it resembles in taste and chemical composition. Caution should be used because wild C. perfoliata can sometimes accumulate toxic amounts of soluble oxalates (also present in spinach).

The plant is known as palsingat or, possibly, lahchumeek in Ivilyuat and it was eaten fresh or boiled as a green by the Ivilyuqaletem (Cahuilla) of Southern California. It, along with Claytonia exigua, are available for gathering in the early Spring.

It has been widely naturalized in western Europe, after being introduced there in the eighteenth century, possibly by the naturalist Archibald Menzies, who brought it to Kew Gardens in London in 1794.


Other names

Claytonia perfoliata is called piyada̠ʼ in the Western Mono language and palsingat in Ivilyuat — two Native American languages of California.

See also

Kids robot.svg In Spanish: Claytonia perfoliata para niños

Black History Month on Kiddle
African-American Ballerinas:
Precious Adams
Lauren Anderson
Janet Collins
kids search engine
Miner's lettuce Facts for Kids. Kiddle Encyclopedia.