Flower-of-an-Hour - Hibiscus trionum
Venice Mallow, Bladder Hibiscus
Hirsute annual. Stems erect, branched, 10–60 cm. Leaf blades orbicular, divided nearly to the base; lobes 3 to 7, 1–4 cm long. Flowers axillary, subtened by linear bracts; calyx veiny, inflated, 8–14 mm long, with short, acute lobes; petals whitish with a purple base,15–40 mm long. Schizocarp 1–3 cm high, hirsute with 5 sections (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 pensylvanicus
and Bombus griseocollis
(Colla and Dumesh 2010).