Difference between revisions of "Ranunculus occidentalis var. occidentalis"
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|distribution=B.C.;Calif.;Nev.;Oreg.;Wash. | |distribution=B.C.;Calif.;Nev.;Oreg.;Wash. | ||
| − | |discussion=<p>L. D. Benson (1948) divided <i>Ranunculus occidentalis </i>var.<i> occidentalis</i> into three varieties. The name <i>R. occidentalis </i>var.<i> occidentalis</i> was applied only to plants from Oregon northward, in which leaves are rarely compound and never have lanceolate ultimate segments, and achenes are always glabrous and have beaks over 1 mm. California plants were treated as <i>R. occidentalis</i> <i></i>var.<i> rattanii</i> (plants with small [5-8 mm] petals from the Coast Ranges) and <i>R. occidentalis</i> var. eisenii (plants with larger petals from the foothills surrounding the Central Valley). Most of those plants from California, however, cannot be distinguished from more northern plants, and forms with small petals are found throughout the range of the variety.</p> | + | |discussion=<p>L. D. Benson (1948) divided <i>Ranunculus occidentalis </i>var.<i> occidentalis</i> into three varieties. The name <i>R. occidentalis </i>var.<i> occidentalis</i> was applied only to plants from Oregon northward, in which leaves are rarely compound and never have lanceolate ultimate segments, and achenes are always glabrous and have beaks over 1 mm. California plants were treated as <i>R. occidentalis</i> <i></i></i>var.<i><i> rattanii</i> (plants with small [5-8 mm] petals from the Coast Ranges) and <i>R. occidentalis</i> var. eisenii (plants with larger petals from the foothills surrounding the Central Valley). Most of those plants from California, however, cannot be distinguished from more northern plants, and forms with small petals are found throughout the range of the variety.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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|publication year= | |publication year= | ||
|special status=Endemic;Selected by author to be illustrated | |special status=Endemic;Selected by author to be illustrated | ||
| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V3/V3_990.xml |
|genus=Ranunculus | |genus=Ranunculus | ||
|subgenus=Ranunculus subg. Ranunculus | |subgenus=Ranunculus subg. Ranunculus | ||
Revision as of 19:56, 24 September 2019
Stems erect to reclining, 1-3(-4) mm thick, hirsute or sometimes glabrous. Basal leaf blades 3-parted or -foliolate, ultimate segments oblong or elliptic to lanceolate or oblanceolate, margins dentate or dentate-lobulate. Flowers: sepals 5, 4-7 mm; petals 5-6, 5-10 × 3-6 mm. Achenes 2.6-3.6(-4) × 1.8-3(-3.2) mm, glabrous or hispid; beak lanceolate, curved, (0.6-)1-1.4 mm.
Phenology: Flowering late winter–spring (Mar–Jun).
Habitat: Grassy slopes of meadows or open woodlands
Elevation: 0-1500 m
Distribution
B.C., Calif., Nev., Oreg., Wash.
Discussion
L. D. Benson (1948) divided Ranunculus occidentalis var. occidentalis into three varieties. The name R. occidentalis var. occidentalis was applied only to plants from Oregon northward, in which leaves are rarely compound and never have lanceolate ultimate segments, and achenes are always glabrous and have beaks over 1 mm. California plants were treated as R. occidentalis var. rattanii (plants with small [5-8 mm] petals from the Coast Ranges) and R. occidentalis var. eisenii (plants with larger petals from the foothills surrounding the Central Valley). Most of those plants from California, however, cannot be distinguished from more northern plants, and forms with small petals are found throughout the range of the variety.
Selected References
None.