Urophysa

Urophysa is a genus of perennial flowering plants belonging to the family Ranunculaceae, endemic to China.

The inflorescences form umbels with 1–3 flowers, each with five blue (or sometimes pinkish-white in U. henryi) sepals and five petals.

[2] The genus Urophysa was named by the German botanist Oskar Eberhard Ulbrich in 1929.

[1][3] The genus name urophysa is derived from Greek οὐρά "tail" and φῦσα "bladder, swelling, inflated, bellows", referring to the small sacs (or short nectar spurs in the case of U. rockii) at the base of the petals.

Both species occur in Sichuan,[5][6] while U. henryi is also native to Guizhou, western Hubei and northwestern Hunan provinces.