Romneya coulteri

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Romneya coulteri
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Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Ranunculales
Family: Papaveraceae
Genus: Romneya
Species:
R. coulteri
Binomial name
Romneya coulteri

Romneya coulteri, the Coulter's Matilija poppy [1] or California tree poppy, is a perennial species of flowering plant in the poppy family Papaveraceae. Native to southern California, USA, and Baja California, Mexico, it grows in dry canyons in chaparral and coastal sage scrub plant communities, sometimes in areas recently burned. [2] It is a popular ornamental plant, kept for its large, showy flowers.

Contents

The specific epithet coulteri commemorates Thomas Coulter, an Irish botanist and explorer. [3]

This herbaceous perennial [4] may exceed 2 m (7 ft) in height, its stem growing from a network of rhizomes. The gray-green, waxy-textured leaves are each divided into a few lance-shaped lobes, the blades growing up to 20 centimeters (7.8 in) long. The inflorescence is a large, solitary flower with six crinkly white petals each up to 10 cm (4 in) long. At the center of the flower is a cluster of many yellow stamens. The fruit is a bristly capsule, 3–4 cm (1–2 in) long, containing many tiny seeds.

This plant often grows aggressively once planted. It spreads clonally by underground rhizomes and can appear several feet away from the original plant. [5]

This plant bears the largest flowers of any species native to California, rivaled only by Hibiscus lasiocarpos . [6] It was nominated for the honor of California state flower in 1890, but the California poppy won the title in a landslide. [7]

In cultivation in the UK, Romneya coulteri and the cultivar 'White Cloud' [8] have gained the Royal Horticultural Society's Award of Garden Merit. [4] [9]

Chemical composition

Protopine is the major alkaloid of this plant, followed by coulteropine and romneine. [10]

Related Research Articles

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Eschscholzia californica, the California poppy, golden poppy, California sunlight or cup of gold, is a species of flowering plant in the family Papaveraceae, native to the United States and Mexico. It is cultivated as an ornamental plant flowering in summer, with showy cup-shaped flowers in brilliant shades of red, orange and yellow. It is also used as food or a garnish. It became the official state flower of California in 1903.

<i>Romneya</i> Genus of flowering plants in the poppy family Papaveraceae

Romneya is a genus of flowering plants belonging to the poppy family (Papaveraceae). There are two species in the genus Romneya, which was named for Irish astronomer John Thomas Romney Robinson. They are known commonly as Matilija poppies, bush poppies, California poppies, or tree poppies. The common name "Matilija" is said to come from the Chumash leader, Chief Matilija. They are also known as the "fried egg flower" or the "fried egg plant" due to their bright yellow stamen, which creates the image of a sunny-side-up egg. They are native to chaparral and coastal scrub habitats in Southern California and Baja California. They are also known to do well in Britain.

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<i>Romneya trichocalyx</i> Species of flowering plants in the poppy family Papaveraceae

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<i>Polygala calcarea</i> Species of flowering plant

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References

  1. USDA, NRCS (n.d.). "Romneya coulteri". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 22 October 2015.
  2. California Native Plant Society Rare Plant Profile
  3. Harrison, Lorraine (2012). RHS Latin for gardeners. United Kingdom: Mitchell Beazley. p. 224. ISBN   9781845337315.
  4. 1 2 "RHS Plantfinder - Romneya coulteri " . Retrieved 10 October 2018.
  5. "Wildflowers, NPS, SAMO NRA - Romneya coulteri detail page". www.smmflowers.org. Retrieved 2017-06-16.
  6. Flora of North America
  7. Clark, C. Genus Eschscholzia: History
  8. "RHS Plantfinder - Romneya coulteri 'White Cloud'" . Retrieved 10 October 2018.
  9. "AGM Plants - Ornamental" (PDF). Royal Horticultural Society. July 2017. p. 88. Retrieved 9 October 2018.
  10. Stermitz, F.R.; Chen, L.; White, J.I. (1966). "Alkaloids of the papaveraceae—II". Tetrahedron. 22 (3): 1095–1102. doi:10.1016/0040-4020(66)80085-6. ISSN   0040-4020.