Oxytropis campestris

Oxytropis campestris
Oxytropis campestris
Conservation status

Secure (NatureServe)
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Rosids
Order: Fabales
Family: Fabaceae
Subfamily: Faboideae
Tribe: Galegeae
Genus: Oxytropis
Species: O. campestris
Binomial name
Oxytropis campestris
(L.) DC.

Oxytropis campestris is a plant native to the Northwestern United States and all Canada, sometimes grown as an ornamental plant.

It is found in prairies, woods, and meadows, and prefers gravelly and rocky slopes, where it grows most abundantly. The plant has numerous variants.

Contents

Description

Oxytropis campestris blooms flowers from May to July. These are racemes that are capitate or oblong, 4 to 15 cm in length. The plants have 8 to 32 flowers that rise from a scape. The actual flowers have five lobes and form a calyx tube. They are of a cream to yellowish color, but sometimes of pink, blue, or purple, with hairs that are usually black. The keel petals are pointed, and often have purple blotches.

The plant also produces fruit which matures from July to September. These are legumes which are oblong-ovate 1.5 to 2 cm in length. They are mostly sessile and dehiscent from the tip. The fruit has membranous and contains many seeds.

The plant grows perennially, with an acaulescent forb reaching 20 to 50 cm in height and has a taproot.

Leaves grow alternately in a pinnate fashion and are usually 8 to 40 cm long. The leaves are dimorphic, with primary leaves short ovate leaflets, and secondary leaves with 11 to 33 leaflets. These secondary leaflets are 1 to 2.5 cm long.

Toxicity

The Oxytropis campestris plant is poisonous and may cause loco disease in livestock. From this it derives the common name field locoweed or some other variations. It is therefore worthless as food and is consumed only when other forage is not available.[1]

Conservation

Though this plant is common in general, one variety, var. chartacea, is a rare taxon limited to two counties in the state of Wisconsin. It is federally listed as a threatened species of the United States.[2][3]

See also

Notes

  1. ^ Stubbendieck, James; Hatch, Stephan L; Butterfield, Charles H (February 1, 1992). North American Range Plants. U of Nebraska Press. ISBN 0-8032-9205-8. p. 357.
  2. ^ USFWS. Determination of threatened status for Oxytropis campestris var. chartacea. Federal Register September 28, 1988.
  3. ^ USFWS. Oxytropis campestris var. chartacea Five-year Review. 2009.

References


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Look at other dictionaries:

  • Oxytropis campestris — ID 58617 Symbol Key OXCA4 Common Name field locoweed Family Fabaceae Category Dicot Division Magnoliophyta US Nativity Native to U.S. US/NA Plant Yes State Distribution AK, CO, ID, ME, MN, MT, ND, OR, SD, UT, WA, WI, WY Growth Habit Forb/herb …   USDA Plant Characteristics

  • Oxytropis campestris var. chartacea — ID 58618 Symbol Key OXCAC Common Name field locoweed Family Fabaceae Category Dicot Division Magnoliophyta US Nativity Native to U.S. US/NA Plant Yes State Distribution WI Growth Habit Forb/herb Duration …   USDA Plant Characteristics

  • Oxytropis campestris var. columbiana — ID 58620 Symbol Key OXCAC2 Common Name field locoweed Family Fabaceae Category Dicot Division Magnoliophyta US Nativity Native to U.S. US/NA Plant Yes State Distribution MT, WA Growth Habit Forb/herb Duration …   USDA Plant Characteristics

  • Oxytropis campestris var. cusickii — ID 58622 Symbol Key OXCAC3 Common Name Cusick s locoweed Family Fabaceae Category Dicot Division Magnoliophyta US Nativity Native to U.S. US/NA Plant Yes State Distribution CO, ID, MT, OR, UT, WA, WY Growth Habit Forb/herb …   USDA Plant Characteristics

  • Oxytropis campestris var. dispar — ID 58627 Symbol Key OXCAD Common Name field locoweed Family Fabaceae Category Dicot Division Magnoliophyta US Nativity Native to U.S. US/NA Plant Yes State Distribution MN, ND Growth Habit Forb/herb Duration …   USDA Plant Characteristics

  • Oxytropis campestris var. johannensis — ID 58630 Symbol Key OXCAJ Common Name Johann s locoweed Family Fabaceae Category Dicot Division Magnoliophyta US Nativity Native to U.S. US/NA Plant Yes State Distribution ME Growth Habit Forb/herb Duration …   USDA Plant Characteristics

  • Oxytropis campestris var. jordalii — ID 58632 Symbol Key OXCAJ3 Common Name Jordal s locoweed Family Fabaceae Category Dicot Division Magnoliophyta US Nativity Native to U.S. US/NA Plant Yes State Distribution AK Growth Habit Forb/herb Duration …   USDA Plant Characteristics

  • Oxytropis campestris var. roaldii — ID 58635 Symbol Key OXCAR3 Common Name Roald s locoweed Family Fabaceae Category Dicot Division Magnoliophyta US Nativity Native to U.S. US/NA Plant Yes State Distribution AK Growth Habit Forb/herb Duration …   USDA Plant Characteristics

  • Oxytropis campestris var. spicata — ID 58638 Symbol Key OXCAS3 Common Name field locoweed Family Fabaceae Category Dicot Division Magnoliophyta US Nativity Native to U.S. US/NA Plant Yes State Distribution CO, MT, ND, SD, WA, WY Growth Habit Forb/herb …   USDA Plant Characteristics

  • Oxytropis campestris var. varians — ID 58643 Symbol Key OXCAV Common Name field locoweed Family Fabaceae Category Dicot Division Magnoliophyta US Nativity Native to U.S. US/NA Plant Yes State Distribution AK Growth Habit Forb/herb Duration …   USDA Plant Characteristics

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