Ranunculus sardous |
Ranunculus turneri |
|
---|---|---|
hairy buttercup, hairy crowfoot |
turner's buttercup |
|
Roots | never tuberous. |
|
Stems | nearly erect, hispid, base not bulbous. |
erect, never rooting nodally, hirsute, base not bulbous. |
Basal leaf | blades cordate to reniform in outline, 3-parted, 1.3-3 × 1.8-3.8 cm, segments cleft, ultimate segments elliptic to lanceolate, margins toothed, apex acute. |
|
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, 7-9 × 2-4 mm, hirsute; petals 5, yellow, 10-15 × 8-11 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. |
nearly globose, 7-10 mm wide; achenes 2.4 × 2.6-2.7 mm, glabrous, margin forming narrow rib 0.1-0.2 mm wide; beak persistent, lanceolate, strongly hooked or curved, 1.6-2 mm. |
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. |
|
Ranunculus sardous |
Ranunculus turneri |
|
Phenology | Flowering late winter–summer (Mar–Aug). | Flowering summer (Aug). |
Habitat | Roadsides, fields, open woods | Damp meadows |
Elevation | 0-200 m (0-700 ft) | 0 m (0 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]
|
AK; NT; YT; Asia |
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.) |
Of conservation concern. Ranunculus turneri was considered an arctic race of R. acris by E. Hultén (1971). It occurs from the Mackenzie Delta to northeastern Alaska. (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. Ranunculus > sect. Ranunculus |
Sibling taxa | ||
Synonyms | R. parvulus | R. occidentalis var. turneri |
Name authority | Crantz: Stirp. Austr. Fasc. 2: 84. (1763) | Greene: Pittonia 2: 296. (1892) |
Web links |
|