dcsimg
Image of Heart-Leaf Buttercup
Creatures » » Plants » » Dicotyledons » » Buttercup Family »

Heart Leaf Buttercup

Ranunculus cardiophyllus Hook.

Comments

provided by eFloras
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.

license
cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 3 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
project
eFloras.org
original
visit source
partner site
eFloras

Description

provided by eFloras
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. 2 n = 32.
license
cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 3 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
project
eFloras.org
original
visit source
partner site
eFloras

Distribution

provided by eFloras
Alta., B.C., Sask.; Ariz., Colo., Mont., N.Mex., N.Dak., S.Dak., Utah, Wash., Wyo.
license
cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 3 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
project
eFloras.org
original
visit source
partner site
eFloras

Flowering/Fruiting

provided by eFloras
Flowering spring-summer (May-Sep).
license
cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 3 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
project
eFloras.org
original
visit source
partner site
eFloras

Habitat

provided by eFloras
Wet or dry meadows; 600-3400m.
license
cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 3 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
project
eFloras.org
original
visit source
partner site
eFloras

Synonym

provided by eFloras
Ranunculus cardiophyllus var. coloradensis L. D. Benson; R. cardiophyllus var. subsagittatus (A. Gray) L. D. Benson; R. pedatifidus J. E. Smith var. cardiophyllus (Hooker) Britton
license
cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 3 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
project
eFloras.org
original
visit source
partner site
eFloras