Jepson Flora Project: Jepson Interchange    

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Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California
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Dieter H. Wilken

Shrub, tree, generally dioecious or flowers bisexual and unisexual, ± resinous, sometimes milky, generally aromatic
Leaves simple or compound, alternate, deciduous or evergreen; stipules 0
Inflorescence: raceme or panicle; flowers generally many
Flower generally unisexual, radial; sepals 5, base generally ± fused; petals 5, generally > sepals, free; stamens 5 or 10, reduced and sterile in pistillate flowers; ovary superior, vestigial or 0 in staminate flowers, subtended by ± lobed, disk-like nectary, chamber generally 1, ovule generally 1, styles 1–3
Fruit drupe-like, glabrous, sticky, or short-hairy; pulp ± resinous, sometimes aromatic
Genera in family: 70+ genera, ± 850 species: tropical, warm temp; some ornamental (Rhus, Schinus ), some cultivated for fruit (Anacardium , cashew; Mangifera , mango)
Reference: [Brizicky 1962 J Arnold Arbor 43:359–375]
TOXIC: many genera produce contact dermatitis.



Shrub, tree, dioecious
Leaves pinnate; leaflets 3–16; lateral generally opposite, membranous, entire to toothed, deciduous
Inflorescence: panicle, axillary or terminal, open to dense
Flower: perianth parts bract-like, generally 1–7, unequal, early deciduous; stamens 4–7, vestigial in pistillate flowers; styles 3, fused at base, generally 0 in staminate flower
Fruit spheric to obovoid; pulp fleshy
Species in genus: ± 11 species: Medit, e Asia, Mex
Etymology: (Ancient Arabic or Persian name)
Reference: [Zohary 1952 Palestine J. Bot 5:187–228]
P. vera , pistachio, generally with 3 leaflets, widely cultivated for food.


P. atlantica Desf.

Tree 3–10 m
Stem: branches spreading to erect
Leaf odd-pinnate; axis winged; leaflets 7–9, tip acute to obtuse
Fruit 6–8 mm, ± obovoid
Ecology: Flats, roadsides, drainages
Elevation: < 100 m.
Bioregional distribution: Sacramento Valley, expected elsewhere
Distribution outside California: native to Mediterranean
Cult for ornamental, escaping; used as rootstock for P. vera. Plants from e ScV and n SNF, with even-pinnate leaves, leaf axis cylindric, leaflets 10–14, are P. chinensis Bunge.

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bioregional map for PISTACIA%20atlantica 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 Pistacia atlantica
Retrieve dichotomous key for Pistacia
Overlay Consortium of California Herbaria specimen data by county on this map
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