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Ballhead Ipomopsis - Ipomopsis congesta
Ball-head Standing-cypress, Ballhead Gilia,
Perennial with a woody, branched (rarely simple) caudex. Stems simple, prostrate to erect, 4–20 cm. Herbage tomentose to glabrous. Leaves 5–60 mm long, simple or, pinnately lobed into linear segments. Inflorescence terminal and axillary, capitate, minutely-bracteate cymes. Flowers: calyx 3–5 mm long; corolla white, salverform; tube 3–5 mm long barely greater than the calyx; lobes 1–3 mm long; stamens exserted; filaments longer than the anthers. Capsule 2–4 mm long with 1 or 2 seeds per locule (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX
Plants in MT are subspecies congesta, crebrifolia
(Nutt.) A.G. Day, and pseudotypica
(Constance & Rollins) A.G. Day.
OR to ND, south to CA, AZ, NM and CO (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)
Sandy or clay soil of grasslands, sagebrush steppe, badlands, pine woodlands; plains, valleys, montane (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX
The following animal species have been reported as pollinators of this plant species or its genus where their geographic ranges overlap: Bombus occidentalis
(Pyke et al. 2012).
- 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.
- Pyke, G.H., D.W. Inouye, and J.D. Thomson. 2012. Local geographic distributions of bumble bees near Crested Butte, Colorado: competition and community structure revisited. Environmental Entomology 41(6): 1332-1349.
- Additional ReferencesLegend: View Online Publication
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- 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.
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