Английская Википедия:Claytonia perfoliata

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Claytonia perfoliata, commonly known as miner's lettuce, rooreh, Indian lettuce, or winter purslane, is a flowering plant in the family Montiaceae. It is an edible, fleshy, herbaceous, annual plant native to the western mountain and coastal regions of North America.

Description

Claytonia perfoliata is a tender rosette-forming plant that grows to some Шаблон:Convert in height,Шаблон:R but mature plants can be as short as Шаблон:Convert. 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 Шаблон:Convert long, with a typically long petiole (exceptionally up to Шаблон:Convert long).

The small pink or white flowers have five petals Шаблон:Convert 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.

Taxonomy

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

Subspecies

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

• Claytonia perfoliata subsp. perfoliata: Pacific coastal United States and Canada (British Columbia)
• Claytonia perfoliata subsp. intermontana: interior western United States
• Claytonia perfoliata subsp. mexicana: coastal southern California and Arizona, all the way south to Mexico to Guatemala

Other names

C. perfoliata is called 'piyada̠' in the Western Mono language and 'palsingat' in Ivilyuat — two Native American languages of California or 'rooreh' in (Ohlone language)

Distribution and habitat

The species is native to Mexico and western north America as far north as British Columbia.

It has been introduced into and is widely naturalized in western Europe, Argentina and New Zealand It was introduced to Europe in the 18th century, possibly by the naturalist Archibald Menzies, who brought it to Kew Gardens in London in 1794.Шаблон:RШаблон:R It was first recorded in the wild in Britain in South Hampshire in 1849 and is still spreading. As of 2019 sightings of this plant have been found as far inland as Arkansas.

Uses

Файл:Salade de pourpier.JPG

Miner's lettuce served as a salad

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.Шаблон:RШаблон:RШаблон:R It is in season in April and May, and can be eaten as a leaf vegetable.Шаблон:R The entire plant is edible, except the roots, and it provides vitamin C.Шаблон:R 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).Шаблон:R

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, is available for gathering in the early spring.Шаблон:R

External links

• Flora North America Claytonia perfoliata
• Calflora database: Claytonia perfoliata (Miner's lettuce)
• Jepson Flora Project: Claytonia perfoliata
• Plants of British Columbia: Claytonia perfoliata