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ANACARDIACEAE SUMAC or CASHEW FAMILY

John M. Miller & Dieter H. Wilken, except as noted

Shrub, tree; generally dioecious or flowers bisexual and unisexual; resin clear, often weathering black, generally aromatic, latex milky or 0. Leaf: simple to ternate- or odd-pinnate-compound, alternate, deciduous or evergreen; stipules 0. Inflorescence: raceme or panicle; flowers generally many. Flower: generally unisexual, radial; sepals generally 5, base generally ± fused; petals 5, generally > sepals, free; (perianth parts 1–7 in Pistacia); stamens 4–7 or 10, vestigial 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, generally ± flat, sticky or not, hairs short or 0; pulp ± resinous, aromatic or not.
70+ genera, ± 850 species: tropics, warm temperate; some ornamental (Rhus, Schinus), cultivated for fruit (Anacardium, cashew; Mangifera, mango; Pistacia, pistachio). TOXIC: many genera produce contact dermatitis. [Yi et al. 2007 Syst Bot 32:379–391] —Scientific Editors: Bruce G. Baldwin, Thomas J. Rosatti.
Unabridged references: [Pell 2004 Ph.D. Dissertation, Louisiana State Univ, Baton Rouge; Cronquist et al. 1997 Anacardiaceae In: Intermountain Flora 3A:313–317; Wannan & Quinn 1991 Bot J Linn Soc 107:349–385; Wannan & Quinn 1990 Bot J Linn Soc 103:225–252; Ibe & Leis 1979 Bull Torrey Bot Club 106:140–144; Brizicky 1963 J Arnold Arbor 44:60–80]

Key to Anacardiaceae

TOXICODENDRON POISON OAK, POISON IVY
Shrub, vine-like or not; generally dioecious. Leaf: ± resinous; leaflets 3–9, thin to ± leathery, entire, toothed, or lobed. Inflorescence: raceme or panicle, axillary, ± open; flowers pedicelled. Flower: stamens 5, vestigial in pistillate flowers; styles ± fused, stigmas 3. Fruit: generally spheric, papery or leathery in age, cream to brown; pulp resinous.
15 species: America, eastern Asia. (Latin: poisonous tree) TOXIC: resin on leaves, stems, fruits causes severe contact dermatitis; one of the most hazardous plants in California.
Unabridged references: [Yiet al. 2007 Syst Bot 32:379–391; Pell 2004 Ph.D. Dissertation, Louisiana State Univ, Baton Rouge; Cronquist et al. 1997 Anacardiaceae In: Intermountain Flora 3A: 313–317; Wannan & Quinn 1991 Bot J Linn Soc 107:349–385; Wannan & Quinn 1990 Bot J Linn Soc 103:225–252; Ibe & Leis 1979 Bull Torrey Bot Club 106:140–144; Gillis 1971 Rhodora 73:72–159, 161–237, 370–443, 465–540]

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Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Oct 23 2014
Citation for this treatment: [Author of taxon treatment] 2013. Toxicodendron, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=9982, accessed on Oct 23 2014

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