Jepson eFlora: Taxon page
Vascular Plants of California
Key to families | Table of families and genera
Previous taxon Index to accepted names and synonyms:
| A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
Next taxon

Ranunculus andersonii

Higher Taxonomy
Family: RanunculaceaeView DescriptionDichotomous Key
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.
Genus: RanunculusView DescriptionDichotomous Key

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.
Species In Genus: +- 300 species: worldwide except lowland tropics; some ornamental. Etymology: (Latin: diminutive of Rana, frog, from wet habitats)
eFlora Treatment Author: Alan T. Whittemore
Ranunculus andersonii A. Gray
Habit: Perennial herb 8--18 cm, erect from short caudex, not rooting at nodes. Leaf: basal, 1.5--3.8 cm, 2.1--3.8 cm wide, cordate, 1--2-ternate, leaflets 2--3 × parted, ultimate segments elliptic to linear, margins entire or few-toothed, tips obtuse to acuminate; cauline 0 or +- like, << basal, +- sessile. Flower: receptacle bristly; sepals 5, spreading, 9--15 mm, 5--9 mm wide, persistent in fruit; petals 5, 12--18 mm, 9--13 mm wide, +- pink-white. Fruit: body 6--12 mm, 4--6 mm wide, wall inflated, papery, longitudinal veins strong, beak 0.2--0.6 mm, deltate or awl-shaped from a deltate base.
Ecology: Dry rocky slopes; Elevation: 1000--2500 m. Bioregional Distribution: SNH, GB, DMtns; Distribution Outside California: to Oregon, Utah. Flowering Time: Mar--May
Synonyms: Beckwithia andersonii (A. Gray) Jeps.
Jepson eFlora Author: Alan T. Whittemore
Jepson Online Interchange

Previous taxon: Ranunculus alismifolius var. lemmonii
Next taxon: Ranunculus aquatilis

Name Search

Botanical illustration including Ranunculus andersonii

botanical illustration including Ranunculus andersonii


Citation for this treatment: Alan T. Whittemore 2012, Ranunculus andersonii, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on March 26, 2019.

Citation for the whole project: Jepson Flora Project (eds.) 2019, Jepson eFlora,, accessed on March 26, 2019.

Ranunculus andersonii
click for enlargement
© 2012 Steve Matson
Ranunculus andersonii
click for enlargement
© 2012 Gary A. Monroe
Ranunculus andersonii
click for enlargement
© 1985 Gary A. Monroe
Ranunculus andersonii
click for enlargement
© 2000 Larry Blakely
Ranunculus andersonii
click for enlargement
© 2017 Steve Matson
Ranunculus andersonii
click for enlargement
© 2017 Steve Matson

More photos of Ranunculus andersonii in CalPhotos

Geographic subdivisions for Ranunculus andersonii:
SNH, GB, DMtns;
Markers link to CCH specimen records. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues. Purple markers indicate specimens collected from a garden, greenhouse, or other non-wild location.
map of distribution 1
(Note: any qualifiers in the taxon distribution description, such as 'northern', 'southern', 'adjacent' etc., are not reflected in the map above, and in some cases indication of a taxon in a subdivision is based on a single collection or author-verified occurence).

View elevation by latitude chart
Data provided by the participants of the Consortium of California Herbaria.
View all CCH records

CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa, if there are more than 1 infraspecific taxon in CA.
Blue line denotes eFlora flowering time.