Ranunculus occidentalis var. brevistylis
Ranunculus occidentalis var. dissectus
western buttercup
western buttercup
erect to reclining, 2-3 mm thick, pilose or glabrous.
erect to spreading, 1-3 mm thick, hirsute or sometimes glabrous.
3-parted, ultimate segments elliptic or narrowly elliptic, margins dentate.
3-parted or sometimes 3-foliolate, ultimate segments lanceolate or oblanceolate, margins entire or sparsely dentate.
sepals 5, 5-7 mm;
petals 5-6, 8-12 × 3-8 mm.
sepals 5, 4-6 mm;
petals 5-6, 6-10 × 3-6 mm.
3-3.4 × 2.6-3 mm, glabrous;
beak lanceolate, curved, 1.2-1.4 mm.
2.6-3.6 × 2-2.8 mm, glabrous;
beak lance-subulate, straight, 1.2-2.2 mm.
= 28.
Ranunculus occidentalis var. brevistylis
Ranunculus occidentalis var. dissectus
Ranunculus occidentalis var. brevistylis may be difficult to distinguish from var. occidentalis; the two have sometimes been combined. The pubescence character distinguishing them is well correlated with geography, however, so I am provisionally maintaining both of them.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Ranunculus occidentalis var. dissectus is found in the Great Basin, Klamath region, and southern Cascade Mountains. As noted below, it is very similar to var. howellii.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
BC
PNW Herbaria
WildflowerSearch
iNaturalist
USDA Plants Database
CA
OR
Flora NW
