familyRanunculaceae
genusRanunculus
subgenusRanunculus subg. Ranunculus
sectionRanunculus sect. Echinella
speciesRanunculus platensis
Ranunculus platensis
in K. Sprengel, Syst. Veg. 5: 586. 1828.
Introduced
Treatment appears in FNA Volume 3.
Revision as of 23:03, 27 May 2020 by imported>Volume Importer
Stems decumbent, sparsely pilose. Basal and lower cauline leaf blades reniform, 3-parted, 0.8-1.7 × 1.2-2 cm, segment base cordate, margins dentate or lobulate, apex rounded-obtuse. Flowers sessile; receptacle glabrous or pilose; sepals 3, spreading, 1-2 × 0.5-1 mm, hirsute; petals 3, 1-2 × 0.5-0.8 mm. Heads of achenes hemispheric, 2-2.5 × 3-3.5 mm; achenes 10-15 per head, 1.3-1.7 × 1-1.3 mm, faces and proximal margin finely papillate, each papilla crowned with hooked bristle, otherwise glabrous; beak semicircular to deltate, curved, 0.2-0.5 mm.
Phenology: Flowering winter–spring (Feb–Apr).
Habitat: Weed in disturbed areas, usually near coast
Elevation: 0-200 m
Distribution
Introduced; Ala., Fla., Ga., La., Miss., N.C., Tex., native to South America (s Brazil, Uruguay, and Argentina).
Discussion
Selected References
None.
Lower Taxa
None.