Ranunculus sardous |
Ranunculus hystriculus |
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hairy buttercup, hairy crowfoot |
waterfall false buttercup |
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Stems | nearly erect, hispid, base not bulbous. |
erect from short caudices, not rooting nodally, glabrous, not bulbous-based. |
Leaves | basal leaf blades semicircular or reniform in outline, shallowly 5-7-lobed, 1.2-4.6 × 1.8-6.6 cm, ultimate segments semicircular, margins crenate, apex rounded or weakly apiculate; cauline leaves 0-2, scalelike. |
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Flowers | pedicellate; receptacle pilose; sepals 5, reflexed, 3-8 × 1.5-3 mm, pilose; petals 5, 7-10 × 4-8 mm. |
receptacle glabrous; sepals spreading, white or pale yellow, 6-13 × 3-6 mm, glabrous; petals 8-12, greenish, 2-4 × 0.6-1.6 mm. |
Heads of achenes | globose or ovoid, 5-8 × 6-7 mm; achenes 15-35 per head, 2-3 × 2-3 mm, faces sparsely papillate or sometimes smooth, glabrous, margin smooth; beak oblong to deltate, curved, 0.4-0.7 mm. |
ovoid, 6-7 × 6-8 mm; achenes 3.8-4.2 × 0.8-1 mm, canescent; beak persistent, filiform, 1.2-1.4 mm, hooked distally. |
Basal | and lower cauline leaf blades ovate to cordate, 3-foliolate, 2-6 × 2-6 cm, leaflets again parted, leaflet base truncate to acute, margins crenate-dentate to crenate-lobulate, apex rounded to obtuse. |
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Tuberous | roots absent. |
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Ranunculus sardous |
Ranunculus hystriculus |
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Phenology | Flowering late winter–summer (Mar–Aug). | Flowering winter–summer (Feb–Jul). |
Habitat | Roadsides, fields, open woods | Wet places near streams, especially around waterfalls |
Elevation | 0-200 m (0-700 ft) | 300-2300 m (1000-7500 ft) |
Distribution |
AL; AR; CA; FL; GA; IL; KS; KY; LA; MD; MO; MS; NC; NJ; NY; OK; OR; PA; RI; SC; TN; TX; VA; BC; native to Europe; Pacific Islands; Australia [Introduced in North America]
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CA
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Discussion | Ranunculus sardous was collected in New Brunswick and Ontario in the 1800s, but it apparently has not persisted in those provinces. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Ranunculus hystriculus is endemic to the west slope of the Sierra Nevada. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 3. | FNA vol. 3. |
Parent taxa | Ranunculaceae > Ranunculus > subg. Ranunculus > sect. Echinella | Ranunculaceae > Ranunculus > subg. Cyrtorhyncha > sect. Pseudaphanostemma |
Sibling taxa | ||
Synonyms | R. parvulus | Kumlienia hystriculus |
Name authority | Crantz: Stirp. Austr. Fasc. 2: 84. (1763) | A. Gray: Proc. Amer. Acad. Arts 7: 328. (1867) |
Web links |
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