Baccharis

Belongs within: Astereae.

Baccharis is a New World genus of composite-flowered perennials and shrubs.

Characters (Hickman 1993): Perennial to shrub, dioecious, sometimes aromatic, often more or less sticky-resinous. Stems erect, channeled. Leaves cauline, alternate, simple, reduced to bracts above. Flower heads discoid and disciform, borne in terminal or lateral racemes, panicles or cymes; phyllaries overlapping in several series; receptacle naked or chaffy. Disk florets generally many, functionally staiminate; corollas white to pink-tinged; ovary much reduced; pappus of bristles shorter than involucre. Pistillate florets generally many; corollas thread-like, more or less whitish. Fruit more or less cylindric, 4- to 10-ribbed; pappus of many bristles longer than involucre.

<==Baccharis
    |--B. brachyphyllaH93
    |--B. confertaBT87
    |--B. douglasiiC55
    |--B. dracunculifoliaH01
    |--B. emoryiH93
    |--B. halimifoliaM83
    |--B. heterophyllaBT87
    |--B. linearisB14
    |--B. magellanicaD03
    |--B. myrsinitesJ87
    |--B. neglectaA02
    |--B. palenaeD03
    |--B. pilularis [incl. B. pilularis var. consanguinea]H93
    |--B. plummeraeH93
    |    |--B. p. ssp. plummeraeH93
    |    `--B. p. ssp. glabrataH93
    |--B. polyanthaH49
    |--B. sagittalisD03
    |--B. salicifolia [incl. B. glutinosa, B. viminea]H93
    |--B. sarothroidesH93
    |--B. sergiloidesH93
    |--B. trimeraF11
    |--B. trinervisGJ09
    `--B. vanessaeH93

*Type species of generic name indicated

References

[A02] Anderson, R. S. 2002. Curculionidae Latreille 1802. In: Arnett, R. H., Jr, M. C. Thomas, P. E. Skelley & J. H. Frank (eds) American Beetles vol. 2. Polyphaga: Scarabaeoidea through Curculionoidea pp. 722–815. CRC Press.

[BT72] Baker, E. W., & D. M. Tuttle. 1987. The false spider mites of Mexico (Tenuipalpidae: Acari). United States Department of Agriculture, Technical Bulletin 1706: 1–237.

[B14] Bouchard, P. (ed.) 2014. The Book of Beetles: A lifesize guide to six hundred of nature’s gems. Ivy Press: Lewes (United Kingdom).

[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.

[D03] Dusén, P. 1903. The vegetation of western Patagonia. In: Scott, W. B. (ed.) Reports of the Princeton University Expeditions to Patagonia, 1896–1899 vol. 8. Botany pp. 1–34. The University: Princeton (New Jersey).

[F11] Fraga, R. M. 2011. Family Icteridae (New World blackbirds). In: Hoyo, J. del, A. Elliott & D. A. Christie (eds) Handbook of the Birds of the World vol. 16. Tanagers to New World Blackbirds pp. 684–807. Lynx Edicions: Barcelona.

[GJ09] Gagné, R. J., & M. Jaschhof. 2009. Cecidomyiidae (gall midges). In: Brown, B. V., A. Borkent, J. M. Cumming, D. M. Wood, N. E. Woodley & M. A. Zumbado (eds) Manual of Central American Diptera, vol. 1 pp. 293–314. NRC Research Press: Ottawa.

[H01] Hempel, A. 1901. Descriptions of Brazilian Coccidae. Annals and Magazine of Natural History, series 7, 7: 110–125.

[H93] Hickman, J. C. (ed.) 1993. The Jepson Manual: Higher Plants of California. University of California Press: Berkeley (California).

[H49] Hustache, A. 1949. Nouveaux Barinae Sud Américains. Troisième partie—Centrinina. Boletim do Museu Nacional, nova serie, Zoologia 97: 1–143.

[J87] Judd, W. S. 1987. Floristic study of Morne La Visite and Pic Macaya National Parks, Haiti. Bulletin of the Florida State Museum—Biological Sciences 32 (1): 1–136.

[M83] Myers, R. L. 1983. Site susceptibility to invasion by the exotic tree Melaleuca quinquenervia in southern Florida. Journal of Applied Ecology 20: 645–658.