Jepson Flora Project: Jepson Interchange    

link to manual TREATMENT FROM THE JEPSON MANUAL (1993) previous taxon | next taxon
Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California
For up-to-date information about California vascular plants, visit the Jepson eFlora.



Niall F. McCarten

Trees, shrubs, dioecious or monoecious
Stem generally erect, < 15 m
Leaves simple or compound; cauline, generally alternate, deciduous, petioled; leaf axis often winged, glabrous to densely hairy
Inflorescence: panicle or flower solitary
Flower radial; disk ring- or cup-shaped; sepals 3–5; petals 0–5; stamens generally 1–2 X number of petals; ovary superior, chambers 2–5, style 0 or 1
Fruit: drupe or capsule; stones 1–5, each 1-seeded
Genera in family: 17 genera; 500 species: worldwide especially tropical; some cultivated (Boswellia, frankincense; Commiphora, myrrh; Bursera ).



Trees, aromatic
Stem < 10 m; bark smooth, shedding
Inflorescence: panicle
Flower: sepals 5; petals 5, arising from disk; stamens 10; ovary chambers 3
Fruit: valves 2–3
Species in genus: 60 species: tropical Am
Etymology: (J. Burser, born 1500's)


B. microphylla A. Gray


Stem < 4 m; branches spreading, generally red; mature bark white
Flower: sepals ± 5 mm; petals ± 4 mm, white to cream
Leaf pinnately compound, 2–8 cm, glabrous; leaflets 7–33, 5–10 mm
Fruit: valves 3; stone yellow
Ecology: Rocky slopes
Elevation: < 700 m.
Bioregional distribution: w edge Sonoran Desert (San Diego Co.)
Distribution outside California: to Arizona, Mexico
Flowering time: Early Summer
Population highly localized. B. hindsiana (Benth.) Engler (some leaves simple) has been reported but not confirmed from PR (s San Diego Co.).
See the CNPS Inventory for information about endangerment and rarity.
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bioregional map for BURSERA%20microphylla being generated
YOU CAN HELP US make sure that our distributional information is correct and current. If you know that a plant occurs in a wild, reproducing state in a Jepson bioregion NOT highlighted on the map, please contact us with that information. Please realize that we cannot incorporate range extensions without access to a voucher specimen, which should (ultimately) be deposited in an herbarium. You can send the pressed, dried collection (with complete locality information indicated) to us (e-mail us for details) or refer us to an accessioned herbarium specimen. Non-occurrence of a plant in an indicated area is difficult to document, but we will especially value your input on those types of possible errors (see automatic conversion of distribution data to maps).

Retrieve Jepson Interchange Index to Plant Names entry for Bursera microphylla
Retrieve dichotomous key for Bursera
Overlay Consortium of California Herbaria specimen data by county on this map
Show other taxa with the same California distribution | Read about bioregions | Get lists of plants in a bioregion
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