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Red Sage - Kochia americana
State Rank Reason (see State Rank above)
The species is at the periphery of its range in Beaverhead County where it is known from one large extant population on BLM and private lands, two historical locations and two other locations that need additional survey work. Agricultural conversion has significantly reduced available habitat. Additional impacts to K. americana from agriculture, grazing and/or invasive weeds are possible.
Red Sage is a perennial subshrub having a woody base and simple or branched, herbaceous stems that are up to 5 dm high. The alternate, fleshy, linear leaves are 5-25 mm long. Foliage is sparsely long-hairy. Small clusters of 2-5 tiny, sessile flowers are borne in the axils of the upper leaves. The 5 hairy calyx lobes are 1-2 mm long, surround the ovary and 5 stamens, and completely cover the 1-seeded fruit. Petals are lacking.
Flowering from June-August.
Some species of Suaeda are also subshrubs with linear, succulent leaves, but their flowers and leaves are glabrous.
In MT in Beaverhead County; OR to MT south to CA, NM and TX (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).
Observations in Montana Natural Heritage Program Database
Number of Observations:
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(Observations spanning multiple months or years are excluded from time charts)
Saline or alkaline soil in valleys and foothills.
Ecological Systems Associated with this Species
Threats or Limiting Factors
STATE THREAT SCORE REASON
Reported threats to Montana's populations of Red Sage (Kochia americana) are currently assigned as unknown. Land-use conversion to agricultural purposes has eliminated most of the potential habitat where Red Sage may have colonized. But, existing risks, are not well known. Concern that remaining habitat may be at risk of land use conversion, or knowledge that non-native plants are impacting Red Sage populations must be substantiated before a threat rank can be assigned (MTNHP Threat Assessment 2021).
- Literature Cited AboveLegend: View Online Publication
- Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
- Additional ReferencesLegend: View Online Publication
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- Blackwell, W.H. Jr., M.D. Baechle, and G. Williamson. 1978. Synopsis of Kochia (Chenopodiaceae) in North America. Sida 7(3):248-254.
- Heidel, B.L. and J. Vanderhorst. 1996. Sensitive plant species surveys in the Butte District, Beaverhead and Madison Counties. Unpublished report to the Bureau of Land Management. Montana Natural Heritage Program, Helena, Montana.
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