Trillium albidum

Trillium albidum
Mendocino County, California
Scientific classification
Kingdom:Plantae
Clade:Angiosperms
Clade:Monocots
Order:Liliales
Family:Melanthiaceae
Genus:Trillium
Species: T. albidum
Binomial name
Trillium albidum
J. D. Freeman, 1975
Synonyms[1]
  • Trillium parviflorum V.G.Soukup (syn of Trillium albidum subsp. parviflorum)

Trillium albidum, known by the common names giant white wakerobin,[2] white toadshade, and sweet trillium, is a species of flowering plant endemic to the western United States, native from northern California through Oregon to Washington.

It occurs in forests, woodlands, scrub, and chaparral habitat, becoming common in some areas.[3][4][5]

Description

Trillium albidum is a rhizomatous perennial herb with one or more erect stems growing 20 to 70 centimetres (7.9 to 27.6 in) ers in height. There is a whorl of three large leaves generally described as bracts,[3] each measuring up to 20 centimeters in length. They are green and mottled with brownish or darker green spots.

Each stem produces one flower, which is held on top of the bracts. The fragrant flower has three lance-shaped green sepals and three wider white or pink- or purple-tinged petals measuring up to 11 centimetres (4.3 in) long.

Varieties

Named varieties include:[1]

  • Trillium albidum subsp. albidum — north west-central California, + southwestern Oregon
  • Trillium albidum subsp. parviflorum (V.G.Soukup) K.L.Chambers & S.C.Meyers — Washington, northwestern Oregon

References

  1. 1 2 Kew World Checklist of Selected Plant Families
  2. ↑ "Trillium albidum". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 15 December 2015.
  3. 1 2 Flora of North America Vol. 26: Pages 94, 106, 107, 113.
  4. ↑ Biota of North America Program 2013 county distribution map
  5. ↑ Calflora taxon report, University of California, Trillium albidum Freeman giant white wakerobin


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