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Key to families | Table of families and genera

Specimen numbers are hyperlinked to records in the Consortium of California Herbaria data view where possible. Taxa are hyperlinked to entries in the Jepson Interchange via the "[Online Interchange]" link.



John M. Miller, except as noted

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.
± 22 genera, ± 230 species: generally temperate America, Asia, Australia, Europe, Kerguelen Is, New Zealand, southern Africa, poorly represented in Europe; some cultivated (Lewisia, Calandrinia). [Ogburn & Edwards 2009 Amer J Bot 96:391–408] All California genera previously included in Portulacaceae; details of flowers, seeds require 20× magnification. —Scientific Editor: Thomas J. Rosatti.
Unabridged references: [Applequist et al. 2006 Syst Bot 31:310–319; Nyffeler et al. 2008 Haseltonia 14: 26–36]
Unabridged note: May include Hectorellaceae.

Key to Montiaceae

1. Fruit circumscissile, dehiscing near middle or below ..... LEWISIA

1' Fruit 2–3-valved, dehiscing longitudinally from top

2. Stigmas 2–3; fruit 2–3-valved, cap-like

3. Petals 2–4; stamens 1–3, anthers pink, rose, or yellow ..... CALYPTRIDIUM

3' Petals 5; stamens 5–10, anthers yellow ..... CISTANTHE

2' Stigmas 3; fruit 3-valved, not cap-like

4. Cauline leaves alternate

5. Inflorescence not 1-sided; petals red; ovules many; seeds 6–many ..... CALANDRINIA

5' Inflorescence generally 1-sided; petals white to pink; ovules 3; seeds 1–3 ..... MONTIA (2)

4' Cauline leaves ± opposite

6. Cauline leaves generally 2, free, ± fused on 1 side, or fused into ± disk; ovules, seeds 3–6 ..... CLAYTONIA

6' Cauline leaves > 2, free; ovules 3, seeds 1–3 ..... MONTIA (2)


Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, [accessed on month, day, year]
Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on [month, day, year].
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