Search Field Guide
Advanced Search
MT Gov Logo
Montana Field Guide

Montana Field Guides

Snake River Cat's-eye - Cryptantha spiculifera
Other Names:  Cryptantha macounii

Native Species

Global Rank: G4?
State Rank: S4

Agency Status


External Links

General Description
Perennial with a branched caudex. Stems erect, 3–20 cm. Herbage strigose, hispid. Leaves basal and cauline, petiolate, linear-oblanceolate, acute, 1–6 cm long, becoming sessile above. Inflorescence leafy-bracteate below. Flowers: calyx hirsute, hispid, 5–8 mm long in fruit; corolla 5–9 mm long, 6–8 mm across the limb; fornices ochroleucus. Nutlets 1 to 4, ovate to lance-ovate, ridged-rugose, 2–3 mm long; scar closed. (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Diagnostic Characteristics
Cryptantha macounii has been separated from Cryptantha spiculifera based on the length of the nutlets (Lesica et al. 2012). The length of the nutlets is continuous and varies within a population; therefore, Lesica et al. (2012) has chosen to retain the name of C. spiculifera. However, if the two taxa are officially separated then the Montana plants would be C. macounii.

Species Range

Range Comments
Central Washington and E Oregon to NE California and N Nevada, E throughout Snake River Plains of Idaho, and N through EC Idaho to W Montana.

Observations in Montana Natural Heritage Program Database
Number of Observations: 36

(Click on the following maps and charts to see full sized version) Map Help and Descriptions
Relative Density



(Observations spanning multiple months or years are excluded from time charts)

Sandy or stony soil of ridges, open slopes in grasslands, sagebrush steppe; plains, valleys, montane (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

  • 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
    Do you know of a citation we're missing?
    • Harvey, S.J. 1990. Responses of steppe plants to gradients of water soil texture and disturbance in Montana, U.S.A. Ph.D. Thesis. Bozeman, MT: Montana State University. 34 p.
    • Quire, R.L. 2013. The sagebrush steppe of Montana and southeastern Idaho shows evidence of high native plant diversity, stability, and resistance to the detrimental effects of nonnative plant species. M.Sc. Thesis. Bozeman, MT: Montana State University. 124 p.
    • Seipel, T.F. 2006. Plant species diversity in the sagebrush steppe of Montana. M.Sc. Thesis. Bozeman, MT: Montana State University. 87 p.
  • Web Search Engines for Articles on "Snake River Cat's-eye"
Login Logout
Citation for data on this website:
Snake River Cat's-eye — Cryptantha spiculifera.  Montana Field Guide.  .  Retrieved on , from