familyRanunculaceae
genusRanunculus
subgenusRanunculus subg. Ranunculus
sectionRanunculus sect. Echinella
speciesRanunculus trilobus
Ranunculus trilobus
Fl. Atlant. 1: 437. 1799.
Introduced
Treatment appears in FNA Volume 3.
Stems erect or reclining, hispid or sometimes glabrous. Basal and lower cauline leaf-blades cordate-ovate, 3-foliolate, 5-8 × 3-6 (-7) cm, leaflets again cleft or parted, leaflet base obtuse to acute, margins dentate, apex rounded to acute. Flowers pedicellate; receptacle hispid; sepals 5, reflexed, 3-4 × 2 mm, sparsely hispid; petals 5, 4-5 × 2-3 mm. Heads of achenes ovoid, 8-9 × 6-7 mm; achenes 30-60 per head, 2 × 2 mm, faces densely tuberculate, glabrous, margin smooth; beak semicircular, hooked, 0.3 mm.
Phenology: Flowering spring (Apr).
Habitat: Fields and roadsides
Elevation: 0-100 m
Distribution
Introduced; Ala., Fla., La., S.C., Tex., native to Europe
Discussion
Selected References
None.
Lower Taxa
None.
... more about "Ranunculus trilobus"
not prolonged +
flattened +
3-7 times as wide as thick +
2 cm20 mm <br />0.02 m <br /> (?) +
dehiscing +
3-foliolate +
cordate-ovate +
semicircular +
much shorter +
terminal +
absent +
hooked +
0.3 cm3 mm <br />0.003 m <br /> (?) +
compound +
undivided +
lobed +
leaflike +
absent +
sepaloid +
absent +
aggregated +
globose;cylindric +
tuberous +
alternate +
2-16-flowered +
sessile +
small +
abundant +
glabrous +
tuberculate +
filiform +
pedicellate +
symmetric +
bisexual +
3;5 +
cylindric;obovoid;cylindric;obovoid;globose;lenticular;discoid +
ovoid +
true +
compound +
undivided +
obtuse;acute +
dentate +
free +
high +
low +
toothed;crenate;toothed;crenate;entire +
narrow;broad +
absent +
attached +
glabrous +
hypogynous +
yellow +
distinct +
4mm;5mm +
conspicuous +
reduced +
sheathing +
absent +
simple +
Fl. Atlant. +
1799 +
hispid +
tuberous +
tuberous +
basal +
1;many +
petaloid +
spurred +
imbricate +
white;yellow;white;yellow;purple;sometimes;green +
deciduous +
distinct +
? (?) +
reflexed +
hispid +
2 cm20 mm <br />0.02 m <br /> (?) +
veined +
Introduced +
distinct +
(5-)10-many +
absent +
bulbous +
not bulbous-based +
absent +
tuberous +
persistent +
absent +
Ranunculus trilobus +
Ranunculus sect. Echinella +
species +
thick +
rhizomatous +