Biology:Olsynium douglasii

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Short description: Species of flowering plant

Olsynium douglasii
Olsynium douglasii 37688.JPG
Olsynium douglasii var. douglasii in Anacortes Community Forest Lands
Scientific classification edit
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Asparagales
Family: Iridaceae
Genus: Olsynium
Species:
O. douglasii
Binomial name
Olsynium douglasii
(A.Dietr.) E.P.Bicknell
Synonyms[1]
  • Eriphilema grandiflora (Raf.) Herb.
  • Olsynium grandiflorum Raf.
  • Sisyrinchium douglasii A.Dietr.
  • Sisyrinchium grandiflorum Douglas ex Lindl.
  • Sisyrinchium inalatum A.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).

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 7⁄8–11 3⁄4 in) long and 1.5–3 mm broad. The showy flowers appear in early spring and are bell-shaped to star-shaped, 15–25 mm long, with six purple[5] tepals.

It is native to western North America, from southern British Columbia south to northern California , and east to northwest Utah.[6]

There are two varieties:

  • Olsynium douglasii var. douglasii. Coastal western North America. Flower filaments with a narrow base
  • Olsynium douglasii var. inflatum. Interior western North America. Flower filaments with an inflated base

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

References

  1. ↑ "Olsynium douglasii (A.Dietr.) E.P.Bicknell — The Plant List". http://www.theplantlist.org/tpl1.1/record/kew-326228. 
  2. ↑ "Olsynium douglasii". Integrated Taxonomic Information System. https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=507253. 
  3. ↑ "Olsynium douglasii". Natural Resources Conservation Service PLANTS Database. USDA. https://plants.usda.gov/core/profile?symbol=OLDO. 
  4. ↑ "Douglas' Blue-eyed Grass - Olsynium douglasii var. douglasii - Common names - Encyclopedia of Life". http://eol.org/pages/1248475/names/common_names. 
  5. ↑ Taylor, Ronald J. (1994) (in en). Sagebrush Country: A Wildflower Sanctuary (rev. ed.). Missoula, MT: Mountain Press Pub. Co. pp. 72. ISBN 0-87842-280-3. OCLC 25708726. https://www.worldcat.org/oclc/25708726. 
  6. ↑ [1]. Washington Burke Museum.
  7. ↑ "RHS Plantfinder - Olsynium douglasii". https://www.rhs.org.uk/Plants/65445/i-Olsynium-douglasii-i/Details. 
  8. ↑ "AGM Plants - Ornamental". Royal Horticultural Society. July 2017. p. 69. https://www.rhs.org.uk/plants/pdfs/agm-lists/agm-ornamentals.pdf. 

External links

Wikidata ☰ Q15296159 entry




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