Ballhead Ipomopsis - Ipomopsis congesta
Ball-head Standing-cypress, Ballhead Gilia,
MNPS Threat Rank
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 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.
Sandy or clay soil of grasslands, sagebrush steppe, badlands, pine woodlands; plains, valleys, montane (Lesica 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).