Ranunculus pensylvanicus |
Ranunculus hebecarpus |
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bristly buttercup, bristly crowfoot, Pennsylvania buttercup, renoncule de pennsylvanie |
delicate buttercup, downy buttercup, pubescent fruit buttercup |
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Roots | never tuberous. |
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Stems | erect, never rooting nodally, hispid, base not bulbous. |
erect, pilose. |
Basal leaf | blades broadly cordate in outline, 3-foliolate, 1.6-7 × 3-9 cm, leaflets cleft, usually deeply so, ultimate segments narrowly elliptic, margins toothed, apex acute. |
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Flowers | receptacle hirsute; sepals reflexed ca. 1 mm above base, 3-5 × 1.5-2 mm, ± hispid; petals 5, yellow, 2-4 × 1-2.5 mm. |
pedicellate; receptacle glabrous; sepals 5, spreading, 1.1-1.8 × 0.5-1 mm, pilose; petals 0-5, 1.3-2 × 0.3-0.7 mm. |
Heads of achenes | cylindric, 9-12 × 5-7 mm; achenes 1.8-2.8 × 1.6-2 mm, glabrous, margin forming narrow rib 0.1-0.2 mm wide; beak persistent, broadly lanceolate or nearly deltate, straight or nearly so, 0.6-0.8 mm. |
discoid, 4-6 × 3 mm; achenes 4-9 per head, 1.7-2.3 × 1.7-2 mm, faces and margin papillose, each papilla crowned with hooked bristle, otherwise glabrous; beak lanceolate, hooked distally, 0.5-0.7 mm. |
Basal | and lower cauline leaf blades cordate-reniform, deeply 3-parted, 0.6-2.3 × 1.2-3.5 cm, segments undivided or 2-4-lobed, base shallowly cordate, margins entire or 2-4-dentate, apex of ultimate segments acute. |
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2n | = 16. |
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Ranunculus pensylvanicus |
Ranunculus hebecarpus |
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Phenology | Flowering late spring–summer (Jun–Aug). | Flowering spring (Mar–May). |
Habitat | Stream banks, bogs, moist clearings, depressions in woodlands | Grasslands, open woodlands, and chaparral |
Elevation | 0-1700 m (0-5600 ft) | 50-900 m (200-3000 ft) |
Distribution |
AK; AZ; CO; CT; DC; DE; IA; ID; IL; IN; MA; MD; ME; MI; MN; MT; ND; NE; NH; NJ; NM; NY; OH; PA; RI; SD; VT; WA; WI; WV; WY; AB; BC; MB; NB; NF; NS; NT; ON; PE; QC; SK
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CA; ID; OR; WA; Mexico (Baja California)
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Discussion | Ojibwa tribes used Ranunculus pensylvanicus as a hunting medicine; the Potawatomi used it as an astringent for miscellaneous diseases (D. E. Moerman 1986). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Ranunculus hebecarpus is native to western North America. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 3. | FNA vol. 3. |
Parent taxa | Ranunculaceae > Ranunculus > subg. Ranunculus > sect. Ranunculus | Ranunculaceae > Ranunculus > subg. Ranunculus > sect. Echinella |
Sibling taxa | ||
Name authority | Linnaeus f.: Suppl. Pl., 272. (1782) | Hooker & Arnott: Bot. Beechey Voy., 316. (1838) |
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