Flora of North America species comparison

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Ranunculus alismifolius var. alismifolius

Ranunculus alismifolius var. davisii
Photo is of parent taxon

plantain-leaf buttercup, water-plantain buttercup
Photo is of parent taxon

Davis' buttercup
Roots

not or scarcely fusiform-thickened proximally.

fusiform-thickened proximally.
Stems

20-70 cm × 3.5-8 mm, glabrous.

13-32 cm × 1-2 mm, glabrous or hirsute.
Leaves

blade lanceolate, 5.8-14.1 × 1.2-2.9 cm, base acuminate or sometimes acute, margins serrulate.

blade broadly to narrowly lanceolate, 3.5-7.2 × 0.5-1.6 cm, base broadly acute, margins entire.
Flowers

petals 4-6, 7-11 × 4-8 mm.

petals 5-6, 5-7 × 3-6 mm.

Ranunculus alismifolius var. alismifolius

Ranunculus alismifolius var. davisii
Phenology Flowering spring (Apr–Jun). Flowering late spring–summer (Jun–Aug).
Habitat Wet meadows, bogs, shallow water of streams and ponds Meadows and bogs
Elevation 0-1700 m (0-5600 ft) 1300-2600 m (4300-8500 ft)
Distribution
from FNA
CA; ID; MT; OR; WA; BC
[BONAP county map]
from FNA
ID; MT; NV; OR; WY
[BONAP county map]
Source FNA vol. 3. FNA vol. 3.
Parent taxa Ranunculaceae > Ranunculus > subg. Ranunculus > sect. Flammula > Ranunculus alismifolius Ranunculaceae > Ranunculus > subg. Ranunculus > sect. Flammula > Ranunculus alismifolius
Sibling taxa
R. alismifolius var. alismellus, R. alismifolius var. davisii, R. alismifolius var. hartwegii, R. alismifolius var. lemmonii, R. alismifolius var. montanus
R. alismifolius var. alismellus, R. alismifolius var. alismifolius, R. alismifolius var. hartwegii, R. alismifolius var. lemmonii, R. alismifolius var. montanus
Name authority unknown L. D. Benson: Amer. Midl. Naturalist 40: 179. (1948)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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(If the plant you're looking for doesn't show up in the auto-complete list, that means it either isn't described in Flora of North America yet, or it's listed under a synonym. And please note that Flora of North America is still missing several plant families, including Apiaceae, Boraginaceae, and Polemoniaceae.)

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