Smooth sumac Rhus glabra, photographed by Richtid.

Belongs within: Anacardiaceae.

Rhus, the sumacs, is a genus of shrubs and small trees found in subtropical and warm temperate regions of the world. While the fruits of some species are used for spice, others (such as the poison ivy R. toxicodendron) can cause a severe allergic reaction.

Characters (from Flora of China): Deciduous shrubs or trees, polygamous or dioecious. Leaves imparipinnately compound; leaf rachis sometimes winged; leaflets petiolate or sessile, with serrate or entire margin. Inflorescence terminal, paniculate or thyrsoid, floral subtending bracts persistent or deciduous. Flowers functionally unisexual or bisexual, 5-merous. Ovary 1-locular and 1-ovulate; styles 3, often united basally. Drupe globose, slightly compressed, mixed glandular pubescent and pilose, red at maturity; exocarp and mesocarp united; mesocarp glutinous, red.

    |--R. ambigua [incl. R. toxicodendron var. radicans] LO98
    |--R. antigua GT02
    |--R. caudata H03
    |--R. copallina MS06
    |--R. coriaria R-CT01
    |--R. glabra B75
    |--R. glaucescens BBO01
    |--R. javanica [incl. R. semialata] LO98
    |--R. lancea BBO01
    |--R. mysorensis BBO01
    |--R. problematodes CV06
    |--R. sylvestris [=R. silvestris] LO98
    |--R. toxicodendron C55
    |--R. tripartita RBA00
    |--R. verniciflua LO98
    `--R. volkii CV06

*Type species of generic name indicated


[BBO01] Begerow, D., R. Bauer & F. Oberwinkler. 2001. Muribasidiospora: Microstromatales or Exobasidiales? Mycological Research 105 (7): 798-810.

[B75] Bowles, J. B. 1975. Distribution and biogeography of mammals of Iowa. Special Publications, The Museum, Texas Tech University 9: 1-184.

[C55] Candolle, A. de. 1855. Géographie Botanique Raisonée: Ou exposition des faits principaux et des lois concernant la distribution géographique des plantes de l’époque actuelle vol. 2. Librairie de Victor Masson: Paris.

[CV06] Craven, P., & P. Vorster. 2006. Patterns of plant diversity and endemism in Namibia. Bothalia 36 (2): 175-189.

[GT02] Gomez, B., F. Thévenard, M. Fantin & L. Guisberti. 2002. Late Cretaceous plants from the Bonarelli Level of the Venetian Alps, northeastern Italy. Cretaceous Research 23: 671-685.

[H03] Heads, M. 2003. Ericaceae in Malesia: Vicariance biogeography, terrane tectonics and ecology. Telopea 10 (1): 311-449.

[LO98] Lack, H. W., & H. Ohba. 1998. Die Xylothek des Chikusai Kato. Willdenowia 28: 263-276.

[MS06] Muellner, A. N., V. Savolainen, R. Samuel & M. W. Chase. 2006. The mahogany family "out-of-Africa": divergence time estimation, global biogeographic patterns inferred from plastid rbcL DNA sequences, extant, and fossil distribution of diversity. Molecular Phylogenetics and Evolution 40 (1): 236-250.

[R-CT01] Ragusa-di Chiara, S., & H. Tsolakis. 2001. Phytoseiid faunas of natural and agricultural ecosystems in Sicily. In Acarology: Proceedings of the 10th International Congress (R. B. Halliday, D. E. Walter, H. C. Proctor, R. A. Norton & M. J. Colloff, eds) pp. 522-529. CSIRO Publishing: Melbourne.

[RBA00] Rifai, L. B., M. Abu Baker & Z. S. Amr. 2000. Ecology, distribution and status of the rock hyrax, Procavia capensis syriaca, in Jordan. Zoology in the Middle East 21: 19-26.

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