Narrow-leaved Purple Coneflower - Echinacea angustifolia
Perennial from a branched, woody taproot. Stems erect, 15–50 cm, mostly unbranched. Herbage hirsute. Leaves basal and alternate on the stem, petiolate; blades linear-lanceolate to oblanceolate, 5–15 cm long, entire. Heads solitary, radiate; involucres hemispheric, 10–15 mm high; phyllaries in 2 to 4 subequal series, ovate with spreading, acuminate tips; receptacle hemispheric with stiff, pointed, dark scales between the flowers. Ray flowers 8 to 21, sterile, light purple; ligules 1–3 cm long, reflexed. Disk flowers perfect, >100, purplish; corolla 5–7 mm long; style appendages acuminate, short-hairy. Pappus a few, short teeth. Achenes tan to brown, 4-angled-obconic, 4–5 mm long, glabrous (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 auricomus
, Bombus pensylvanicus
, Bombus bimaculatus
, Bombus griseocollis
, and Bombus impatiens
(Colla and Dumesh 2010, Williams et al. 2014).