Three species (G. odorata, G. scabra, G. speciosa) are known in cultivation.[4]Guettarda argentea provides edible fruit.[2] The type species for the genus is Guettarda speciosa.[5]
^ abDavid J. Mabberley. 2008. Mabberley's Plant-Book third edition (2008). Cambridge University Press: UK. ISBN978-0-521-82071-4
^W. Rodger Elliot; David L. Jones; Trevor L. Blake (1990). Encyclopaedia of Australian Plants Suitable for Cultivation: Vol. 5. Port Melbourne: Lothian Press. p. 162. ISBN0-85091-285-7.
^ abAnthony J. Huxley, Mark Griffiths, and Margot Levy (editors). 1992. The New Royal Horticultural Society Dictionary of Gardening. The Macmillan Press Limited, London; The Stockton Press, New York. ISBN978-0-333-47494-5 (set)
^Guettarda In: Index Nominum Genericorum. In: Regnum Vegetabile (see External links below).
^Guettarda in International Plant Names Index. (see External links below).
^Carl Linnaeus. 1753. Species Plantarum (Species plantarum : exhibentes plantas rite cognitas ad genera relatas, cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas / Caroli Linnæe.): 2:991. Holmiae: Impensis Laurentii Salvii: Stockholm, Sweden. (see External links below).
^Umberto Quattrocchi. 2000. CRC World Dictionary of Plant Names volume II. CRC Press: Boca Raton; New York; Washington,DC;, USA. London, UK. ISBN978-0-8493-2676-9. (vol. II).
^Ulrika Manns and Birgitta Bremer. 2010. "Towards a better understanding of intertribal relationships and stable tribal delimitations within Cinchonoideae s.s. (Rubiaceae)". Molecular Phylogenetics and Evolution56(1):21-39. doi:10.1016/j.ympev.2010.04.002
^Guettarda At: World Checklist of Rubiaceae At: Kew Gardens Website. (see External links below).