Lepidium montanum

Lepidium montanum

taxobox
name = "Lepidium montanum"


regnum = Plantae
unranked_divisio = Angiosperms
unranked_classis = Eudicots
unranked_ordo = Rosids
ordo = Brassicales
familia = Brassicaceae
genus = "Lepidium"
species = "L. montanum"
binomial = "Lepidium montanum"
binomial_authority = Nutt.|

"Lepidium montanum" is a species of flowering plant in the mustard family known by the common name mountain pepperweed. It is native to western North America from Oregon to Montana to northern Mexico, where it can be found in a number of habitats, often on salty or gravelly soils. There are several varieties, many of which are difficult to distinguish. This is a short, spreading, shrublike biennial herb producing a rounded form up to about 40 centimeters tall and greater in width. The leaves near the base of the plant are up to 15 centimeters long and are divided into several toothed lobes; those further up on the stem are shorter and often undivided. The plant flowers abundantly in rounded to cylindrical inflorescences a few centimeters wide. Each small flower has white to cream-colored petals about 2 millimeters long and two to six stamens. The fruit is an oval-shaped capsule a few millimeters long.

Varieties of the species include:
*var. "alpinum" - alpine pepperweed, Wasatch pepperwort - endemic to UtahUtah Division of Wildlife Resources. (1998). [http://dwrcdc.nr.utah.gov/ucdc/ViewReports/plantrpt.pdf Endemic and Rare Plants of Utah: An Overview of their Distribution and Status] . Pg. 75.]
*var. "claronense" - mountain pepperweed, Casto Canyon pepperwort - endemic to Utah
*var. "coloradense" - endemic to Colorado
*var. "neeseae" - Elizabeth's pepperweed, Neese's pepperwort - endemic to Utah
*var. "nevadense" - Pueblo Valley peppergrass - native to Oregon and NevadaNevada Natural Heritage Program. (2001). [http://heritage.nv.gov/atlas/lepidmontanevad.pdf Rare Plant Fact Sheet] .]

External links

* [http://ucjeps.berkeley.edu/cgi-bin/get_JM_treatment.pl?2240,2504,2528 Jepson Manual Treatment]
* [http://plants.usda.gov/java/profile?symbol=LEMO2 USDA Plants Profile]
* [http://calphotos.berkeley.edu/cgi/img_query?query_src=photos_index&where-taxon=Lepidium+montanum+var.+cinereum Photo gallery - var. "cinereum"]

References


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Look at other dictionaries:

  • Lepidium montanum — Lepidium montanum …   Wikipédia en Français

  • Lepidium montanum — Lep …   Wikipédia en Français

  • Lepidium montanum — ID 46181 Symbol Key LEMO2 Common Name mountain pepperweed Family Brassicaceae Category Dicot Division Magnoliophyta US Nativity Native to U.S. US/NA Plant Yes State Distribution AZ, CA, CO, ID, MT, NM, NV, OR, UT, WY Growth Habit Subshrub,… …   USDA Plant Characteristics

  • Lepidium montanum var. montanum — ID 46193 Symbol Key LEMOM Common Name mountain pepperweed Family Brassicaceae Category Dicot Division Magnoliophyta US Nativity Native to U.S. US/NA Plant Yes State Distribution AZ, CA, CO, ID, MT, NM, NV, OR, UT, WY Growth Habit Subshrub,… …   USDA Plant Characteristics

  • Lepidium montanum var. alpinum — ID 46182 Symbol Key LEMOA Common Name alpine pepperweed Family Brassicaceae Category Dicot Division Magnoliophyta US Nativity Native to U.S. US/NA Plant Yes State Distribution UT Growth Habit Subshrub, Forb/herb Du …   USDA Plant Characteristics

  • Lepidium montanum var. canescens — ID 46183 Symbol Key LEMOC Common Name mountain pepperweed Family Brassicaceae Category Dicot Division Magnoliophyta US Nativity Native to U.S. US/NA Plant Yes State Distribution AZ, CA, NM, NV, OR, UT Growth Habit Subshrub, Forb/herb …   USDA Plant Characteristics

  • Lepidium montanum var. cinereum — ID 46185 Symbol Key LEMOC4 Common Name mountain pepperweed Family Brassicaceae Category Dicot Division Magnoliophyta US Nativity Native to U.S. US/NA Plant Yes State Distribution AZ, CA, NV, UT Growth Habit Forb/herb, Subshrub …   USDA Plant Characteristics

  • Lepidium montanum var. claronense — ID 46188 Symbol Key LEMOC5 Common Name mountain pepperweed Family Brassicaceae Category Dicot Division Magnoliophyta US Nativity Native to U.S. US/NA Plant Yes State Distribution UT Growth Habit Forb/herb, Subshrub …   USDA Plant Characteristics

  • Lepidium montanum var. coloradense — ID 46189 Symbol Key LEMOC6 Common Name mountain pepperweed Family Brassicaceae Category Dicot Division Magnoliophyta US Nativity Native to U.S. US/NA Plant Yes State Distribution CO Growth Habit Forb/herb, Subshrub …   USDA Plant Characteristics

  • Lepidium montanum var. glabrum — ID 46190 Symbol Key LEMOG Common Name mountain pepperweed Family Brassicaceae Category Dicot Division Magnoliophyta US Nativity Native to U.S. US/NA Plant Yes State Distribution AZ Growth Habit Subshrub, Forb/herb …   USDA Plant Characteristics

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