Search Field Guide
Advanced Search
MT Gov Logo
Montana Field Guide

Montana Field Guides

Golden Tickseed - Coreopsis tinctoria

Native Species

Global Rank: G5
State Rank: S4

Agency Status
MNPS Threat Rank:
C-value: 6

External Links

General Description
Glabrous, taprooted annual or biennial. Stems erect, usually branched, 20–80 cm. Leaves cauline, opposite, petiolate; blades ovate, 2–10 cm long, 1 to 2 times deeply divided into 3 to 7 well-separated, long, linear to oblanceolate segments. Inflorescence open, corymbiform, linear-bracted; peduncles 1–10 cm long. Heads radiate; involucres campanulate; phyllaries ovate, dimorphic in 2 series; outer ca. 2 mm long; inner purplish, 5–9 mm long, striate; receptacle flat with scales between the flowers. Ray flowers sterile, 8, yellow; ligules 6–15 mm long with a dark base. Disk flowers perfect, purple to brown; corolla 2–3 mm long, 4-lobed, tube shorter than the throat; style branch appendages short, blunt. Pappus absent or inconspicuous. Achenes oblong, flattened, 1–3 mm long, glabrous (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range

Range Comments
Throughout temperate North America (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database
Number of Observations: 25

(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)

Moist soil along rivers, streams, ponds; plains, valleys (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

The following animal species have been reported as pollinators of this species or genera where their geographic ranges overlap: Bombus impatiens (Colla and Dumesh 2010).

  • Literature Cited AboveLegend:   View Online Publication
    • Colla, S.R. and S. Dumesh. 2010. The bumble bees of southern Ontario: notes on natural history and distribution. Journal of the Entomological Society of Ontario 141: 39-68.
    • Great Plains Flora Association (McGregor, R.L., coordinator, and T.M. Barkley, R.E. Brooks, and E.K. Schofield - eds.). 1986. Flora of the Great Plains. Lawrence, KS: Univ. Press Kansas. 1392 pp.
    • 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?
    • Rundquist, V.M. 1973. Avian ecology on stock ponds in two vegetational types in north-central Montana. Ph.D. Dissertation. Bozeman, MT: Montana State University. 112 p.
    • Warren, J.W. 1958. Bionomic investigations of Aedes nigromaculis (Ludlow) (Dipters: Culcidae) with special reference to oviposition. Ph.D. Dissertation. Bozeman, MT: Montana State University. 65 p.
  • Web Search Engines for Articles on "Golden Tickseed"
Login Logout
Citation for data on this website:
Golden Tickseed — Coreopsis tinctoria.  Montana Field Guide.  .  Retrieved on , from