Jepson eFlora: Taxon page
Vascular Plants of California
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Higher Taxonomy
Family: SimaroubaceaeView DescriptionDichotomous Key

Habit: 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].
Genera In Family: 22 genera, 100 species: tropics, warm temperate; some cultivated. Note: Bark, leaves used traditionally to treat malaria, other ailments.
eFlora Treatment Author: Robert E. Preston & Elizabeth McClintock
Scientific Editor: Thomas J. Rosatti.
Habit: 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.
Species In Genus: 5 species: southeastern Asia, Australasia. Etymology: (Moluccan: sky tree)
Jepson eFlora Author: Robert E. Preston & Elizabeth McClintock
Reference: Corbett & Manchester 2004 Int J Pl Sci 165:671--690
Index of California Plant Names (ICPN; linked via the Jepson Online Interchange)

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Citation for this treatment: Robert E. Preston & Elizabeth McClintock 2012, Ailanthus, in Jepson Flora Project (eds.) Jepson eFlora, /eflora/eflora_display.php?tid=9895, accessed on February 25, 2020.

Citation for the whole project: Jepson Flora Project (eds.) 2020, Jepson eFlora,, accessed on February 25, 2020.