Directory       News       Site Map       Home
    Jepson eFlora: Taxon page
Key to families | Table of families and genera

Previous taxon Indexes to all 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 |
Previous taxon


Robert E. Preston & Elizabeth McClintock

Shrub, tree; generally dioecious. Stem: occasionally thorny; bark often bitter. Leaf: generally alternate, simple, entire, or pinnately compound, leaflets subentire to toothed near base. Inflorescence: panicle, raceme, or flowers 1. Flower: unisexual, inconspicuous; sepals generally 4–5, generally fused at base, generally erect; petals generally 5, free, generally spreading; stamens generally 10, generally on disk, filaments often with a basal scale; pistils 1–8, ovaries superior, 1–2-chambered, 1-ovuled [if pistil 1, chambers generally 2–5, 1-ovuled], styles free or partly fused. Fruit: winged achenes or drupes [berry, nut], in clusters [not].
22 genera, 100 species: tropics, warm temperate; some cultivated. [Clayton et al. 2007 Int J Plant Sci 168:1325–1339] Bark, leaves used traditionally to treat malaria, other ailments. —Scientific Editor: Thomas J. Rosatti.
Unabridged references: [Brizicky 1962 J Arnold Arbor 43:173–186; Fernando & Quinn 1995 Taxon 44:177–181]

Key to Simaroubaceae

Plant ± dioecious, with a few bisexual flowers. Leaf: generally ± odd-pinnate, ill-smelling when crushed, deciduous. Inflorescence: large panicle, terminal. Flower: calyx lobes 5–6; petals 5–6; stamens 10–12; ovaries very compressed, adherent near middle, styles ± free but twisted together. Fruit: 1–5, ± pendent, seed near middle.
5 species: southeastern Asia, Australasia. (Moluccan: sky tree) [Corbett & Manchester 2004 Int J Plant Sci 165:671–690]

Previous taxon: Simaroubaceae
Next taxon: Ailanthus altissima


Name search

Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora,, accessed on Nov 30 2015
Citation for this treatment: [Author of taxon treatment] 2013. Ailanthus, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on Nov 30 2015

Copyright © 2014 Regents of the University of California
We encourage links to these pages, but the content may not be downloaded for reposting, repackaging, redistributing, or sale in any form, without written permission from The Jepson Herbarium.

Markers link to CCH specimen records. If the markers are obscured, reload the page [or change window size and reload]. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.
map of distribution 1

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