Bitterroot (Lewisia rediviva) is a small perennial herb in the family Montiaceae. Its specific epithet rediviva ("revived, reborn") refers to its ability to regenerate from dry and seemingly dead roots.[1]
The genus Lewisia was moved in 2009 from the purslane family (Portulacaceae) with adoption of the APG III system, which established the family Montiaceae.
Description
Flower in University of California Botanical Garden
Lewisia rediviva is a low-growing perennial plant with a fleshy taproot and a simple or branched base. The flower stems are leafless, 1–3 centimetres (3⁄8–1+1⁄8in) tall, bearing at the tip a whorl of 5–6 linear bracts which are 5–10mm long. A single flower appears on each stem with 5–9 oval-shaped sepals.[2] They range in color from whitish to deep pink or lavender. Flowering occurs from April through July.[3] The petals (usually about 15) are oblong in shape and are 18–35 millimetres (3⁄4–1+3⁄8in) long.[2] At maturity, the bitterroot produces egg-shaped capsules with 6–20 nearly round seeds.[2]
The thick roots come into season in spring[4] and can survive extremely dry conditions. If collected early enough in the season,[5] they can be peeled, boiled, and made into a jelly-like food.[4]
French trappers knew the plant as racine amère (bitter root).[8] Native American names include spetlum/sp̓eƛ̓m̓ or spetlem ("hand-peeled"), nakamtcu (Ktanxa: naqam¢u),[9] and mo'ôtáa-heséeo'ôtse (Cheyenne, "black medicine").[10]
The roots were consumed by tribes such as the Shoshone and the Flathead Indians as an infrequent delicacy. Traditionally, the Ktunaxa cooked bitterroot with grouse. For the Ktunaxa, bitterroot is eaten with sugar; other tribes prefer eating it with salt.[11] The Lemhi Shoshone believed the small red core found in the upper taproot had special powers, notably being able to stop a bear attack.[8] Plains Indians peeled and boiled the root prior to its consumption.[5]
L. rediviva var. rediviva, Glass Mountain, Owens Valley, California
Meriwether Lewis ate bitterroot in 1805 and 1806 during the Lewis and Clark Expedition. The specimens he brought back were identified and given their scientific name, Lewisia rediviva, by a German-American botanist, Frederick Pursh.[8]
Based on Lewis and Clark's manuscript, Pursh labeled it "spatlum"; this apparently was actually a Salishan name for "tobacco".[12]
The bitterroot was selected as the Montana state flower in 1895.[13]
Three major geographic features – the Bitterroot Mountains (running north–south and forming the divide between Idaho and Montana), the Bitterroot Valley, and the Bitterroot River (which flows south–north, terminating in the Clark Fork river in the city of Missoula) – owe the origins of their names to this flower.[8][14]
References
William Curtis (1801). The Curtis's botanical magazine. p.123. The specific name rediviva is given by Pursh in consequence of the root, long preserved in the herbarium, and apparently dead, having been planted, revived in a garden in Philadelphia.
Klinkenberg, Brian, ed. (2014). "Lewisia rediviva". E-Flora BC: Electronic Atlas of the Plants of British Columbia [eflora.bc.ca]. Lab for Advanced Spatial Analysis, Department of Geography, University of British Columbia, Vancouver. Archived from the original on 2016-03-04. Retrieved 2015-04-23.
Sullivan, Steven. K. (2015). "Lewisia rediviva". Wildflower Search. Retrieved 2015-04-23.
"Lewisia rediviva". PLANTS Database. United States Department of Agriculture; Natural Resources Conservation Service. 2015. Archived from the original on 2013-07-03. Retrieved 2015-04-23.
Giblin, David, ed. (2015). "Lewisia rediviva". WTU Herbarium Image Collection. Burke Museum, University of Washington. Retrieved 2015-04-23.
Bureau of American Ethnology (1910). Handbook of American Indians. p.624. its supposed name was obtained from Lewis's manuscript by Pursh, who gives it as spatlum (Spatlum Aboriginorum). The name, which is Salishan, is here a misapplication, since spatlûm in the Comox dialect (spätlûm in the Kwantlin) is the name for
Montana. Dept. of Public Instruction (1929). Montana Educational Directory. p.30. The Montana state flower, adopted by act of the Legislative Assembly, approved February 27, 1895, is the Bitter Root (Lewisia rediviva).
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