Ranunculus cardiophyllus

Hooker

Fl. Bor.-Amer. 1: 14. 1829.

Common names: Renoncule pédatifide
EndemicIllustrated
Synonyms: Ranunculus cardiophyllus var. coloradensis L. D. Benson Ranunculus cardiophyllus var. subsagittatus (A. Gray) L. D. Benson Ranunculus pedatifidus var. cardiophyllus (Hooker) Britton
Treatment appears in FNA Volume 3.

Stems erect, 11-53 cm, pilose or glabrous, each with 1-5 flowers. Roots cylindric, 1.3-2 mm thick. Basal leaves persistent, blades ovate or elliptic, undivided or innermost 3-5-parted, 2.2-6.9 × 1.8-4.5 cm, base cordate to broadly obtuse, margins crenate with more than 5 crenae, apex rounded to broadly acute. Flowers: pedicels pilose; receptacle canescent; sepals 5-8 × 3-7 mm, abaxially pilose, hairs colorless; petals (0-) 5-10, 6-13 × 4-13 mm; nectary scale ciliate or sometimes glabrous. Heads of achenes ovoid or cylindric, 5-16 × 5-9 mm; achenes 1.8-2.2 × 1.5-2 mm, finely canescent; beak subulate, curved or straight, 0.6-1.2 mm. 2n = 32.


Phenology: Flowering spring–summer (May–Sep).
Habitat: Wet or dry meadows
Elevation: 600-3400 m

Distribution

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Alta., B.C., Sask., Ariz., Colo., Mont., N.Mex., N.Dak., S.Dak., Utah, Wash., Wyo.

Discussion

Ranunculus cardiophyllus is quite variable. Through most of its range, leaves always have rounded marginal crenae and cordate or truncate bases, stems are often densely pilose (but may be sparsely pilose or glabrous), and achene beaks are curved. In plants from Arizona and New Mexico, however, leaves may have obtuse marginal crenae or broadly obtuse bases, stems are never densely pilose, and achene beaks are sometimes straight. Forms showing some or all of these charactersistics are often separated as R. cardiophyllus var. subsagittatus. The characteristics are poorly correlated, however, and taxonomic recognition is not warranted.

Most specimens of Ranunculus cardiophyllus have all of the basal leaves unlobed, but plants with the innermost basal leaf 3-5-lobed are common. A few specimens, mostly from the northern part of its range, have all of the basal leaves 5-parted or -divided. Those plants approach R. pedatifidus in their morphology, and R. cardiophyllus has sometimes been considered a variety of that species.

Selected References

None.

Lower Taxa

None.
... more about "Ranunculus cardiophyllus"
not prolonged +
asymmetrically thick-lenticular +  and compressed-globose +
1.2-2 times as wide as thick +
0.18 cm1.8 mm <br />0.0018 m <br /> - 0.22 cm2.2 mm <br />0.0022 m <br /> +
1.5mm;2mm +
rounded +  and broadly acute +
Alan T. Whittemore +
Hooker +
cordate +  and broadly obtuse +
Ranunculus sect. Marsypadenium +
straight +  and curved +
subulate +
0.06 cm0.6 mm <br />6.0e-4 m <br /> - 0.12 cm1.2 mm <br />0.0012 m <br /> +
elliptic;ovate +
large +  and small +
globose;cylindric +
sometimes;sessile;nearly sessile +
Renoncule pédatifide +
1-50-flowered +
0 cm0 mm <br />0 m <br /> - 25 cm250 mm <br />0.25 m <br /> +
Alta. +, B.C. +, Sask. +, Ariz. +, Colo. +, Mont. +, N.Mex. +, N.Dak. +, S.Dak. +, Utah +, Wash. +  and Wyo. +
600-3400 m +
showy +  and inconspicuous +
sessile +  and aggregate +
cylindric;obovoid;cylindric;obovoid;globose;lenticular;discoid +
Wet or dry meadows +
0.5 cm5 mm <br />0.005 m <br /> - 1.6 cm16 mm <br />0.016 m <br /> +
cylindric;ovoid +
0.5 cm5 mm <br />0.005 m <br /> - 0.9 cm9 mm <br />0.009 m <br /> +
axillary +  and terminal +
2.2 cm22 mm <br />0.022 m <br /> - 6.9 cm69 mm <br />0.069 m <br /> +
1.8 cm18 mm <br />0.018 m <br /> - 4.5 cm45 mm <br />0.045 m <br /> +
reniform +  and linear +
compound +  and simple +
whorled +, opposite +  and alternate +
cauline +  and basal +
parted +  and lobed +
palmate +  and pinnate +
inconspicuous +
distinct +
6mm;13mm +
conspicuous +
linear +  and orbiculate +
reduced +
0.1 cm1 mm <br />0.001 m <br /> - 2.6 cm26 mm <br />0.026 m <br /> +
0.4 cm4 mm <br />0.004 m <br /> - 1.3 cm13 mm <br />0.013 m <br /> +
Flowering spring–summer - May–Sep. +
4 +  and 250 +
Fl. Bor.-Amer. +
cylindric +
0.13 cm1.3 mm <br />0.0013 m <br /> - 0.2 cm2 mm <br />0.002 m <br /> +
not arillate +  and stalked +
again +  and undivided +
parted +  and lobed +
white;yellow;white;yellow;purple;sometimes;green +
deciduous +
distinct +
oblong +  and elliptic ovate or lanceolate +
0.1 cm1 mm <br />0.001 m <br /> - 1.5 cm15 mm <br />0.015 m <br /> +
0.3 cm3 mm <br />0.003 m <br /> - 0.7 cm7 mm <br />0.007 m <br /> +
Endemic +  and Illustrated +
- 5-10-many +
not bulbous-based +
glabrous +  and pilose +
11 cm110 mm <br />0.11 m <br /> - 53 cm530 mm <br />0.53 m <br /> +
persistent +
Ranunculus cardiophyllus var. coloradensis +, Ranunculus cardiophyllus var. subsagittatus +  and Ranunculus pedatifidus var. cardiophyllus +
Ranunculus cardiophyllus +
Ranunculus sect. Epirotes +
species +
perennial +  and annual +
pubescent +, pilose +, sometimes +  and glabrous +
herbaceous +  and woody +