Velvet-leaved Gaura - Gaura parviflora
Gaura mollis, Oenothera curtiflora
Taprooted, single-stemmed annual. Stems erect, 30–80 cm, branched above. Herbage glandular, villous. Leaves lanceolate, 3–11 cm long, weakly dentate. Spikes 10–30 cm long. Flowers slightly irregular; hypanthium 2–4 mm long; sepals 1–3 mm long; petals 1–3 mm long. Capsule mostly glabrous, 5–8 mm long, 4-angled, rounded between the angles (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX)
Wagner et al. (2007, Syst. Bot. Monogr. Vol. 83) treat this as Oenothera curtiflora
W.L. Wagner & Hoch.
The following animal species have been reported as pollinators of this plant species or its genus where their geographic ranges overlap: Bombus pensylvanicus
and Bombus impatiens
(Colla and Dumesh 2010).