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Lewisia leeana

Higher Taxonomy
Family: MontiaceaeView DescriptionDichotomous Key

Habit: Annual to perennial herb; generally fleshy. Stem: 1--many, generally glabrous. Leaf: simple, alternate or opposite. Inflorescence: axillary or terminal; cyme, raceme, panicle, umbel, or flower 1. Flower: bisexual, radial; sepals generally 2(9), free; petals (1)2--19, free or +- fused; stamens 1--many, epipetalous or not, anthers pink, rose, or yellow; ovary superior, chamber 1, ovules 1--many, placenta basal or free-central; styles (0)1--8, generally fused at base, branched. Fruit: capsule, circumscissile or 2--3-valved. Seed: 1--many, shiny or +- pebbly or sculptured, black or gray, generally with oil-filled appendage as food for ants.
Genera In Family: +- 22 genera, +- 230 species: generally temperate America, Asia, Australia, Europe, Kerguelen Is, New Zealand, southern Africa, poorly represented in Europe; some cultivated (Lewisia, Calandrinia). Note: All CA genera previously included in Portulacaceae; details of flowers, seeds require 20× magnification.
Unabridged Note: May include Hectorellaceae.
eFlora Treatment Author: John M. Miller, except as noted
Scientific Editor: Thomas J. Rosatti.
Genus: LewisiaView DescriptionDichotomous Key

Habit: Perennial herb generally from short, thick, +- branched taproot; tuberous root generally 0 (or spheric). Stem: prostrate to erect, scape-like or branched. Leaf: generally in basal rosette and cauline, simple, entire or not; base wide; margin generally +- translucent. Inflorescence: +- scapose; cyme, panicle, raceme, or +- umbel; stems 1--many, generally leafless but bracted, disjointing in age or not, 1--many flowered; pedicel 0--30 mm. Flower: sepals 2--8, free, persistent; petals 4--19, white, cream, yellow, orange, pink, rose, purple, overlapped in bud, often with pink or dark purple veins; stamens 1--50; styles 2--8, fused at base, stigmas 2--8, thread-like. Fruit: 6--9 mm, spheric or ovoid, circumscissile near middle or below, translucent. Seed: 1--50, dark, generally shiny, smooth or finely tubercled, 1--4 mm in size.
Species In Genus: 18 species: western North America, 16 in flora. Etymology: (Captain Meriwether Lewis, of Lewis & Clark Expedition, 1774--1809) Note: Many hybrids, cultivated, including Lewisia ×whiteae Purdy in California; Lewisia columbiana (A. Gray) B.L. Rob. not in California.
Unabridged Note: Many hybrids, cultivars (Mathew 1989), including Lewisia ×whiteae Purdy in California, as well as Lewisia columbiana (Howell ex A. Gray) B.L. Rob. from Douglas Co., Oregon north to British Columbia; Lewisia maguirei A.H. Holmgren endemic to Nevada; Lewisia sacajaweana B.L. Wilson & E. Rey-Vizgirdas restricted to Idaho; Lewisia tweedyi, endemic to northern Cascades of Washington, British Columbia now placed in Cistanthe.
eFlora Treatment Author: John M. Miller & Lauramay T. Dempster

Lewisia leeana (Porter) B.L. Rob.
Leaf: many, dense-rosetted, 1.5--6 cm, +- linear, +- cylindric, entire, +- fleshy, tapered to narrow base, tip blunt. Inflorescence: stems 1--several, 8--24 cm, each with open, rounded, many-flowered, panicle-like cyme; flowers well exserted from leaves; bracts among flowers and below, lanceolate, entire or increasingly gland-toothed distally; pedicel 3--15 mm. Flower: sepals 2, +- 1/3 × corolla, ovate or +- round, +- gland-toothed; petals 6--8, 5--6.5 mm, obovate, white, pink, purple, or magenta, tip generally rounded; stamens 4--8; stigmas 2. Fruit: 4--5 mm. Seed: 1--2, 2--2.5 mm. Chromosomes: n=14.
Ecology: Granite, serpentine cliffs, rocky slopes, conifer forest; Elevation: 1300--3350 m. Bioregional Distribution: KR, NCoRH, CaR, c&s SNH; Distribution Outside California: southwestern Oregon. Flowering Time: Jun--Aug Note: Lewisia leeana hybridizes with Lewisia cotyledon (see Lewisia ×whiteae).
Synonyms: Calandrinia leeana Porter; Lewisia eastwoodiana Purdy; Oreobroma leeanum (Porter) Howell; Lewisia leana, orth. var.
eFlora Treatment Author: John M. Miller & Lauramay T. Dempster
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botanical illustration including Lewisia leeana


Citation for this treatment: John M. Miller & Lauramay T. Dempster 2016. Lewisia leeana, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on May 29, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora,, accessed on May 29, 2016.

Lewisia leeana
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© 2011 Steve Matson
Lewisia leeana
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© 2011 Steve Matson
Lewisia leeana
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© 2014 Julie Kierstead Nelson
Lewisia leeana
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© 2013 Julie Kierstead Nelson
Lewisia leeana
click for enlargement
© 2011 Steve Matson
Lewisia leeana
click for enlargement
© 1991 Julie Kierstead Nelson

More photos of Lewisia leeana in CalPhotos

Geographic subdivisions for Lewisia leeana:
KR, NCoRH, CaR, c&s SNH;
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.
Blue line denotes eFlora flowering time.