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Duncan M. Porter

Tree [shrub]; generally dioecious or monoecious. Stem: generally erect, < 15 m. Leaf: simple or compound, cauline, generally alternate, deciduous, petioled; leaf axis often winged; hairs dense to 0. Inflorescence: generally panicle or flowers 1. Flower: radial; generally unisexual, disk ring- or cup-shaped; sepals 3–5, generally united below; petals [0–2]3–5; stamens generally 1–2 × number of petals; ovary superior, chambers 2–5, style 0 or 1. Fruit: drupe or capsule; stones 1–5, 1-seeded.
18 genera, ± 700 species: worldwide especially tropics; some cultivated (Boswellia, frankincense; Commiphora, myrrh; Bursera, Protium, copal). [Weeks et al. 2005 Molec Phylogen Evol 35:85–101] —Scientific Editor: Thomas J. Rosatti.

Tree, aromatic; dioecious. Stem: < 10 m; bark smooth, shedding. Inflorescence: panicle. Flower: petals inserted beneath disk; stamens 10; ovary chambers 2–3. Fruit: drupe-like when young, capsule-like in age, valves [2]3.
± 100 species: tropics, subtropical America. (Joachim Burser, German physician, botanist, 1583–1639) [Porter 1974 Madroño 22:273–276]

Previous taxon: Burseraceae
Next taxon: Bursera microphylla


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Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora,, accessed on Nov 27 2015
Citation for this treatment: [Author of taxon treatment] 2013. Bursera, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on Nov 27 2015

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