Virescence is the abnormal development of green pigmentation in plant parts that are not normally green, like shoots or flowers (in which case it is known as floral virescence). Virescence is closely associated with phyllody (the abnormal development of flower parts into leaves) and witch's broom (the abnormal growth of a dense mass of shoots from a single point). They are often symptoms of the same disease affecting the plants, typically those caused by phytoplasmas. The term chloranthy is also sometimes used for floral virescence, though it is more commonly used for phyllody.
- Masters, M.T. (1869). Vegetable Teratology, an Account of the Principal Deviations from the Usual Construction of Plants. Robert Hardwicke. p. 240–281.
- Hogenhout, S.A.; Šeruga Musić, M. (2010). "Phytoplasma Genomics, from Sequencing to Comparative and Functional Genomics – What Have We Learnt?". In Weintraub, P.G; Jones, P. (eds.). Phytoplasmas: Genomes, Plant Hosts and Vectors. CABI. pp. 19–37. ISBN 9781845935306.
- Shastri, V. (2005). Academic Dictionary Of Biology. Isha Books. ISBN 9788182051874.
- "Virescent". Academic Dictionaries and Encyclopedias. Retrieved 10 November 2012.
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