Olsynium douglasii

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Olsynium douglasii
Olsynium douglasii 37688.JPG
Olsynium douglasii var. douglasii in Anacortes Community Forest Lands
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Asparagales
Family: Iridaceae
Genus: Olsynium
Species:
O. douglasii
Binomial name
Olsynium douglasii
Synonyms [1]
  • Eriphilema grandiflora(Raf.) Herb.
  • Olsynium grandiflorumRaf.
  • Sisyrinchium douglasiiA.Dietr.
  • Sisyrinchium grandiflorumDouglas ex Lindl.
  • Sisyrinchium inalatumA.Nelson

Olsynium douglasii is a species of flowering plant in the iris family (Iridaceae). Common names include Douglas' olsynium, [2] Douglas' grasswidow, [3] grass-widow, blue-eyed grass, purple-eyed-grass, and satin flower, [4] It is the only species in the genus Olsynium in North America, the remaining 11 species being from South America. It was formerly treated in the related genus Sisyrinchium . Despite the common names, it is not a true grass (Poaceae).

Contents

It is a bulb forming herbaceous perennial, growing 10–40 cm (3.9–15.7 in) tall. The leaves are slender, linear, 10–30 cm (3+7811+34 in) long and 1.5–3 mm broad, usually with pale longitudinal stripes. The showy flowers appear in early spring and are bell-shaped to star-shaped, 15–25 mm long, with six purple [5] tepals (sometimes pale or white). The anthers are dark yellow to orange and the filaments bearing them are fused only on the lower part.

It is native to western North America, from southern British Columbia south to northern California, and east to northwest Utah. It grows in open areas usually in full sun. [6]

There are two varieties:

This species has won the Royal Horticultural Society's Award of Garden Merit. [7] [8]

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References

  1. "Olsynium douglasii (A.Dietr.) E.P.Bicknell — The Plant List". www.theplantlist.org.
  2. "Olsynium douglasii". Integrated Taxonomic Information System.
  3. USDA, NRCS (n.d.). "Olsynium douglasii". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 22 July 2015.
  4. "Douglas' Blue-eyed Grass - Olsynium douglasii var. douglasii - Common names - Encyclopedia of Life". Encyclopedia of Life.
  5. Taylor, Ronald J. (1994) [1992]. Sagebrush Country: A Wildflower Sanctuary (rev. ed.). Missoula, MT: Mountain Press Pub. Co. p. 72. ISBN   0-87842-280-3. OCLC   25708726.
  6. . Washington Burke Museum.
  7. "RHS Plantfinder - Olsynium douglasii" . Retrieved 14 April 2018.
  8. "AGM Plants - Ornamental" (PDF). Royal Horticultural Society. July 2017. p. 69. Retrieved 14 April 2018.