Camassia howellii

Last updated

Howell's camas
Camassia howellii.jpg
herbarium specimen at Smithsonian
collected in Oregon 1889
Status TNC G2.svg
Imperiled  (NatureServe)
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Asparagales
Family: Asparagaceae
Subfamily: Agavoideae
Genus: Camassia
Species:
C. howellii
Binomial name
Camassia howellii
S. Watson 1890
Synonyms [1]
  • Quamasia howellii(S.Watson) Coville


Camassia howellii, commonly known as Howell's camas, is a species of perennial flowering plant in the family Asparagaceae endemic to western Oregon. [2]

Contents

Discovered in 1889, Camassia howellii is now considered to be imperiled due to residential development, mining and grazing. [3]

Distribution

Camassia howellii is found exclusively in the southwestern region of Oregon, almost only in Josephine county, including on Grants Pass and Sexton Mountain. [4] The 12 populations make up a total of 3000 plants. These sites are threatened by human developments. This species is currently under the global conservation status rank G2 Imperiled. [5] Although other species of Camassia are still abundant in the Northwest, this one is not in Oregon.

Camassia howellii thrives in wet meadows in serpentine soil. They are found in eastern Oregon where precipitation levels range from 70 to 100 inches per year and temperatures from 40 to 80 degrees Fahrenheit per year. These perennials are late bloomers usually during the month of May and the flowers will wither in the autumn. [6] The common elevation is between 200 and 700 meters high. [4]

Map of distribution GetMapGif.gif
Map of distribution

Description

Camassia howellii Actinomorphic.jpg
Camassia howellii

Camassia howellii grows from a bulb and has 60 cm long basal leaves which range around 4 to 7 per plant.

The plant's inflorescences reach about 15 to 40 cm (6 to 15.5 in) long which are usually bluish violet. The flowers are actinomorphic made up of five 20 mm (0.79 in) long petals. There can be 100 flowers in a raceme. These flowers sit atop a stem about 50 cm (19.5 in) tall. [3] The flowers are radially symmetrical and are composed of five deep bluish violet petals. The petals range from 10 to 20 mm long and about 3 to 5 mm wide. [7] This species is known to bloom in the month of May. The small bulbs are between 1.5 and 3 centimeters in diameter, and have a brown coat. The few, narrow leaves are between 20 and 60 centimeters in length. The capsule fruit is between 0.5 and 1 centimeter in long, shiny green in color, and has 2 to 5 seeds per fruit. It has smaller capsules and wider spreading pedicels compared to other Camassia species. [4]

Uses

Native Americans and settlers considered Camassia howellii as an important part of their diet. The city of Camas in Washington and many parts of the Northwestern United States was named after this plant due to its large cultivation and consumption by the Native Americans and first white settlers.

In autumn the bulbs were harvested after the flowers dried up and were boiled or pit-cooked. [8] The bulbs were also dried and ground into flour. As the settlers began to expand their territory, they raised cattle which limited the growth of camas in the area.

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<i>Camassia cusickii</i> Species of flowering plant

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References

  1. The Plant List, Camassia howellii S. Watson
  2. Integrated Taxonomic Information System-ITIS Standard Report Page: Camassia howellii
  3. 1 2 NatureServe. 2014. NatureServe Explorer: An online encyclopedia of life [web application]. Version 7.1. NatureServe, Arlington, Virginia. Available http://explorer.natureserve.org. (Accessed: May 3, 2014 )
  4. 1 2 3 "Camassia howellii" (PDF). camhow.pdf. August 2019. Archived from the original (PDF) on September 22, 2022. Retrieved September 25, 2023.
  5. Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
  6. Knight, Linda. Seevers, Joan. 1992. "Special Status Plants of the Medford District BLM". Bureau of Land Management, Medford OR. http://soda.sou.edu/Data/Library1/021106c1.pdf Archived 2014-05-04 at the Wayback Machine
  7. Barkley, Theodore. Flora of North America Camassia howellii
  8. Gould, Frank W. A Systematic Treatment of the Genus Camassia Lindl". The University of Notre Dame, Vol.28, No. 3, Nov., 1942, p. 712-742. https://www.jstor.org/stable/2420901