[Buttercups and Crowsfeet: The Genus Ranunculus West of the Cascade Mountains]

Lesser Celandine

Ranunculus ficaria

Synonym: Ranunculus ficaria var. bulbifera

Lesser Celandine: Ranunculus ficaria (Synonym: Ranunculus ficaria var. bulbifera)

Lesser celandine spreading aggressively in disturbed soils along Johnson Creek to the west of Linneman Junction in southwestern Gresham, OR..............April 9, 2011.

Underside of the flower of Lesser Celandine: Ranunculus ficaria (Synonym: Ranunculus ficaria var. bulbifera) - Close-up of the flower of Lesser Celandine: Ranunculus ficaria (Synonym: Ranunculus ficaria var. bulbifera)

Leaf blade of Lesser Celandine: Ranunculus ficaria (Synonym: Ranunculus ficaria var. bulbifera) - Lesser Celandine: Ranunculus ficaria (Synonym: Ranunculus ficaria var. bulbifera)

Additional close-up photos of lesser celandine as seen along Johnson Creek to the west of Linneman Junction in southwestern Gresham, OR..............April 9, 2011.

Close-up of the tubers of Lesser Celandine: Ranunculus ficaria (Synonym: Ranunculus ficaria var. bulbifera)

A close-up of the underground tubers of lesser celandine as seen in the webmaster's garden in Gresham, Oregon..........February 5, 2012. Unfortunately, the tubers allow this weedy species to spread quickly in disturbed areas.

Lesser Celandine: Ranunculus ficaria

Lesser celandine (var. purpurea) blooming in the webmaster's garden where it slowly spreads. Variety bulbifera (with green leaves) spreads much more rampantly and can be considered an extremely invasive weed.

Paul Slichter