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Over's Goosefoot - Chenopodium capitatum var. parvicapitatum
Other Names:
Chenopodium overi, Chenopodium foliosum, Blitum hastatum
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General Description
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Phenology
Fruiting summer to fall (Clemants and Mosyakin in Flora of North America [FNA] 2003).
Diagnostic Characteristics
Montana has two varieties of
Chenopodium capitatum (Lesica 2022; Clemants and Mosyakin
in Flora of North America [FNA] 2003):
Variety parvicapitatum , native
-In fruit the glomerules are usually green (occasionally red), 5mm or less broad.
-Leaf margins entire to somewhat toothed (crenate).
-Leaf blades are cuneate to truncate at their base.
Variety capitatum , possibly exotic
-In fruit the glomerules are reddish, 6-10mm broad.
-Leaf margins strongly toothed (dentate).
-Leaf blades are truncate to cordate at their base.
Range Comments
In North America: AZ, CA, CO, ID, MT, NV, NM, OR, UT, and WY (Clemants and Mosyakin in FNA 2003). Chenopodium captitatum var. parvicapitatum is thought to be native to North America and introduced into Eurasia (Clemants and Mosyakin in FNA 2003).
Observations in Montana Natural Heritage Program Database
Number of Observations: 3
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Relative Density
Recency
(Observations spanning multiple months or years are excluded from time charts)
Habitat
In North American plants have been found in Quaking Aspen groves, Ponderosa Pine stands, Pinyon Pine-Juniper stands, Douglas-Fir and Quaking Aspen stands, Big Sagebrush habitats, meadows, and riparian habitats (Clemants and Mosyakin in FNA 2003).
Stewardship Responsibility
References
Literature Cited AboveLegend: View Online Publication Flora of North America Editorial Committee. 2003. Flora of North America North of Mexico, Volume 4, Magnoliophyta: Caryophyllidae, Part 1. Oxford University Press, New York. 584 p. Lesica, P., M.T. Lavin, and P.F. Stickney. 2022. Manual of Montana Vascular Plants, Second Edition. Fort Worth, TX: BRIT Press. viii + 779 p.
Additional ReferencesLegend: View Online Publication Do you know of a citation we're missing? Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
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