Difference between revisions of "Ranunculus arvensis"
Sp. Pl. 1: 555. 1753.
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|publication year=1753 | |publication year=1753 | ||
|special status=Weedy;Introduced | |special status=Weedy;Introduced | ||
| − | |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_78.xml |
|genus=Ranunculus | |genus=Ranunculus | ||
|subgenus=Ranunculus subg. Ranunculus | |subgenus=Ranunculus subg. Ranunculus | ||
Revision as of 19:55, 24 September 2019
Stems erect or ascending, sparsely pilose. Basal and lower cauline leaf blades obovate to rhombic in outline, 3-parted or 3(-5)-foliolate, 1.8-5.2 × 1.6-4.2 cm, leaflets oblanceolate or divided into oblanceolate or linear segments, leaflet base narrowly acuminate, margins entire or distally dentate, apex rounded or acuminate. Flowers pedicellate; receptacle sparsely hispid; sepals 5, spreading, 4-7 × 1-2 mm, strigose; petals 5, 5-8 × 2-4 mm. Heads of achenes discoid, 8-9 mm across; achenes 5-8 per head, 4-6.4 × 2.8-4.4 mm, faces and margin covered with long spines, glabrous; beak lance-subulate, straight, 1.6-3.8 mm.
Phenology: Flowering spring (Mar–Jun).
Habitat: Grasslands, ephemeral pools, disturbed areas
Elevation: 0-1200 m
Distribution
Ark., Calif., D.C., Ga., Idaho, Ill., Kans., La., Miss., Mo., N.J., N.Y., N.C., Oreg., Pa., S.C., Tenn., Utah, Wash., South America, native to Eurasia, Pacific Islands, Australia.
Discussion
Selected References
None.