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   » » Wiki: Montia Howellii
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Montia howellii
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Montia howellii is a species of flowering plant in the family known by the common names Howell's miner's lettuce and Howell's montia. It is native to western North America from to northern , where it grows in moist to wet habitat, including and meadows. It sometimes grows in shallow standing water such as puddles. The species is known from fossilized seeds recovered from sediments of the Pleistocene Tomales Formation and from a small paleoflora at San Bruno.Mason, Herbert L. 1932. Pleistocene Flora from San Bruno. Carnegie Institute of Washington Publication No. 415, pages 25-44Mason, Herbert L. 1934. Pleistocene Flora from the Tomales Formation. Carnegie Institute of Washington Publication No. 415, pages 81-179. Further, Daniel Axelrod discussed Montia howellii as one of the biogeographically significant species comprising the Millerton Palaeoflora at Tomales.Axelrod, D. I. 1983. New Pleistocene Conifer Records, Coastal California. University of California Publications Geological Sciences Volume 127. Berkeley: University of California Press, 31 pp


Description
It is a small, low, mat-forming annual herb growing up to about 9 centimeters in maximum length. The linear or lance-shaped, sometimes grasslike, leaves are alternately arranged and measure up to 2.5 centimeters in length. The bears 2 to 6 minute flowers with oval green no more than 2 millimeters long and white petals less than a millimeter in length. The flower is usually , self-fertilizing and sometimes never even opening.


Conservation
This species is believed to be in decline in California, and is ranked as "vulnerable" to extinction overall by . Threats to the species include grazing, and .


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