Common Name: BUTTERCUP FAMILY Habit: Annual, perennial herb, woody vine [shrub], occasionally aquatic. Leaf: generally basal and cauline, alternate or opposite, simple or compound; petioles at base generally flat, occasionally sheathing or stipule-like. Inflorescence: cyme, raceme, panicle, or flowers 1. Flower: generally bisexual, generally radial; sepals 3--6(20), free, early-deciduous or withering in fruit, generally green; petals 0--many, generally free; stamens generally 5--many, staminodes generally 0; pistils 1--many, ovary superior, chamber 1, style 0--1, generally +- persistent as beak, ovules 1--many. Fruit: achene, follicle, berry, +- utricle in Trautvetteria, in aggregate or not, 1--many-seeded. Genera In Family: +- 60 genera, 1700 species: worldwide, especially northern temperate, tropical mountains; many ornamental (Adonis, Aquilegia, Clematis, Consolida, Delphinium, Helleborus, Nigella). Toxicity: some highly TOXIC (Aconitum, Actaea, Delphinium, Ranunculus). Note: Taxa of Isopyrum in TJM (1993) moved to Enemion; Kumlienia moved to Ranunculus. eFlora Treatment Author: Margriet Wetherwax & Dieter H. Wilken, family description, key to genera Scientific Editor: Douglas H. Goldman, Bruce G. Baldwin.
Common Name: BUTTERCUP Habit: Annual to perennial herb, occasionally from stolons or caudices, terrestrial or aquatic; roots generally fibrous. Stem: prostrate to erect. Leaf: basal, cauline, or both, alternate, generally reduced upward; petiole base flat, stipule-like or not; basal, proximal cauline petioles generally long; blades simple to dissected or compound, entire to toothed. Inflorescence: cyme, axillary or terminal, 1--few-flowered. Flower: sepals 3--5(6), generally early-deciduous, generally green to yellow or purple; petals 0--17[(150)], shiny, generally yellow, occasionally white or purple, nectaries near base, pocket-like or with flap-like scale; anthers yellow; pistils generally many. Fruit: achene, compressed or not, +- spheric, disk-like (width 3--15 × depth), or lenticular (width 1--2 × depth), beaked. Etymology: (Latin: diminutive of Rana, frog, from wet habitats) eFlora Treatment Author: Alan T. Whittemore
Ranunculus acris L.
WAIF Habit: Perennial herb 15--45(60) cm, erect, not rooting at nodes. Stem: generally few-branched above base, generally hairy. Leaf: basal, proximal cauline 1.8--5.2 cm, 2.7--9.8 cm wide, 5-angled, deeply 3--5 parted, segments 1--2 × lobed or parted, ultimate segments narrowly elliptic to oblong or lanceolate, toothed or lobed, tip acute to rounded; distal cauline much smaller, deeply parted or compound. Flower: receptacle glabrous; sepals 5, spreading, 4--6 mm, 2--5 mm wide, early-deciduous; petals 5, 8--11 mm, 7--13 mm wide. Fruit: body 2--3 mm, 1.8--2.4 mm wide, disk-like, wall thick, smooth, beak deltate, tip generally 0.2--1 mm, straight or curved, awl-shaped. Ecology: Disturbed areas; Elevation: < 1500 m. Bioregional Distribution: NCo, n SNH; Distribution Outside California: worldwide; native to Eurasia. Flowering Time: Jul Jepson eFlora Author: Alan T. Whittemore Index of California Plant Names (ICPN; linked via the Jepson Online Interchange) Previous taxon: Ranunculus Next taxon: Ranunculus alismifolius
Citation for this treatment: Alan T. Whittemore 2012, Ranunculus acris, in Jepson Flora Project (eds.) Jepson eFlora, https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=40845, accessed on April 19, 2024.
Citation for the whole project: Jepson Flora Project (eds.) 2024, Jepson eFlora, https://ucjeps.berkeley.edu/eflora/, accessed on April 19, 2024.
No expert verified images found for Ranunculus acris.
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