Jepson Flora Project: Jepson Interchange    

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Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California

  • Up-to-date information about California vascular plants is available from the Jepson eFlora.



Dieter H. Wilken, except as specified

Annual, perennial herb, sometimes aquatic
Leaves generally basal and cauline, generally alternate, simple or compound; petioles at base generally flat, sometimes sheathing or stipule-like
Inflorescence: cyme, raceme, panicle, or flowers solitary
Flower generally bisexual, radial; sepals generally 5, free, early deciduous or withering in fruit, generally green; petals 0–many, free; stamens generally 10–many; pistils 1–many, ovary superior, chamber 1, style 1, generally ± persistent in fruit as beak, ovules 1–many
Fruit: achene, follicle, berry, or utricle-like, 1–many-seeded
Genera in family: ± 60 genera, 1700 species: worldwide, especially n temp, tropical mtns; many ornamental (Adonis, Aquilegia, Clematis, Consolida, Delphinium, Erianthis, Helleborus ), some highly TOXIC (Aconitum, Actaea, Delphinium, Ranunculus )
Reference: [Duncan & Keener 1991 Phytologia 70:24–27]



Annual, perennial herb, sometimes from stolons or caudices, terrestrial or aquatic; roots generally fibrous
Stem prostrate to erect
Leaves basal and generally cauline, generally reduced upwards, generally glabrous; petiole base flat, stipule-like or not; basal and lower cauline petioles generally long; blades simple to dissected or compound, entire to toothed
Inflorescence: cyme, axillary or terminal, 1–few-flowered
Flower radial; sepals generally 5, generally early deciduous, generally glabrous, generally green to yellowish; petals generally 5, generally > sepals, generally white to yellow, shiny; nectar gland near petal base, pocket-like or with flap-like scale; anthers yellow; pistils generally many
Fruit: achene, generally compressed, beaked, generally glabrous; walls thick
Species in genus: ± 250 species: temp worldwide, tropical mtns; some ornamental
Etymology: (Latin: (Pliny) little frog, from generally wet habitats)


R. eschscholtzii Schldl.

Perennial 5–25 cm, scapose or not
Stem generally erect, glabrous; branches 0–few, at base
Leaves: basal and lower cauline (if present) petioles 1–8 cm, blades 1–3 cm, round to reniform, with 3–5(7) lobes > 1/2 way to base, lobes entire to few-toothed or -lobed; upper cauline leaves 0 or 1–2, sessile, deeply 3-lobed to 1-ternate, lobes or leaflets oblong to elliptic, entire
Flower: receptacle glabrous; sepals 3.5–7 mm, hairs 0–sparse; petals 5–12 mm, 5–9 mm wide
Fruits 17–many; cluster narrowly ovoid to subcylindric; body 1.5–2 mm, ± plump, sides ± 1 mm wide, glabrous, back rounded; beak 0.5–1 mm, ± straight
Chromosomes: 2n=56
Ecology: Meadows, rocky slopes, ledges
Elevation: 1800–4000 m.
Bioregional distribution: Klamath Ranges, Cascade Range, High Sierra Nevada, San Bernardino Mountains, San Jacinto Mountains, Great Basin Floristic Province
Distribution outside California: to Alaska, Montana, Colorado, Arizona
Some plants difficult to separate from typical var. of AK and w Can.


var. oxynotus (A. Gray) Jeps.

Leaves: basal and lower cauline (if present) with 3–5(7) lobes > 1/2 way to blade base, middle lobe with 1 tooth or lobe or generally entire, tips obtuse to rounded
Ecology: Habitats and elevations of sp
Bioregional distribution: Cascade Range, High Sierra Nevada, San Bernardino Mountains, San Jacinto Mountains, Great Basin Floristic Province
Distribution outside California: Nevada
Flowering time: Jul–Aug
Scapose plants in SNH with leaf bases not persistent doubtfully belonging to var. e.
Horticultural information: TRY; DFCLT.

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bioregional map for RANUNCULUS%20eschscholtzii%20var.%20oxynotus being generated

Retrieve Jepson Interchange Index to Plant Names entry for Ranunculus eschscholtzii var. oxynotus
Retrieve dichotomous key for Ranunculus
Overlay Consortium of California Herbaria specimen data by county on this map
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