Gallery

Potentilla arguta flower; photo © Joshua Mayer

Potentilla gracilis flowers; photo © Andrey Zharkikh

Potentilla gracilis leaves; photo © Andrey Zharkikh

Potentilla norvegica flower; photo © Joshua Mayer

Potentilla sp., emersed; photo: S.L. Winterton

Potentilla sp. leaves; photo: S.L. Winterton

Prosperpinaca palustris, emersed; photo: S.L. Winterton

Prosperpinaca palustris, submersed; photo: S.L. Winterton

Prosperpinaca palustris axillary flowers; photo: S.L. Winterton

Prosperpinaca palustris flower; photo: S.L. Winterton

Proserpinaca pectinata stem apex; photo © D. Tenaglia

Ranalisma rostrata, emersed; photo: S.L. Winterton

Ranalisma rostrata, submersed; photo: S.L. Winterton

Ranalisma rostrata flower; photo: S.L. Winterton

Ranunculus aquatilis, submersed; photo: S.L. Winterton

Ranunculus aquatilis submersed leaves; inset top: flower; inset bottom: fruit, Sutter Buttes, California; photos: S.L. Winterton

Ranunculus aquatilis, submersed, with emersed flowers; photo: S.L. Winterton

Ranunculus aquatilis flower; photo: S.L. Winterton

Ranunculus aquatilis flowers; photo © 2003, 2004, 2005 J.K. Lindsey

Ranunculus flagelliformis, emersed; photo: S.L. Winterton

Ranunculus flagelliformis emergent in shallow water; photos: S.L. Winterton

Ranunculus flagelliformis flower; photo: S.L. Winterton

Ranunculus flagelliformis flower; photo: S.L. Winterton

Ranunculus flammula; photo: S.L. Winterton

Ranunculus flammula flower; photo: S.L. Winterton

Ranunculus inundatus, emersed; photo: S.L. Winterton

Ranunculus inundatus, submersed; photo: S.L. Winterton

Ranunculus inundatus flower; photo: S.L. Winterton

Ranunculus muricatus flower; photo: S.L. Winterton

Ranunculus muricatus fruit; photo: S.L. Winterton

Ranunculus sp., emersed; photo: S.L. Winterton

Ranunculus sp. flower; photo: S.L. Winterton