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Not evaluated (IUCN 3.1)
Psidium cattleianum, named in honour of notable English horticulturist Sir William Cattley, commonly known as Cattley guava or Peruvian guava, is a small tree (2–6 m tall), bearing small red or yellow fruit, which are somewhat sour but sometimes eaten or made into jam. The red-fruited variety is known as strawberry guava; the yellow-fruited variety is known as lemon guava, and in Hawaii as waiawī. Native to Brazil and adjacent tropical South America, it is closely related to common guava (P. guajava), and like that species is a widespread, highly invasive species in tropical areas, especially Hawaiʻi. It tends to form dense, monotypic stands which prevent regrowth of native species, and is very difficult to eradicate; it also provides refuge for fruit flies which cause extensive agricultural damage. As an invasive species, it is sometimes erroneously called Chinese guava.
The fruit can be eaten whole as both the thin skin and soft, juicy interior are edible. Strawberry guavas taste like a passionfruit mixed with strawberry; lemon guavas have a more acidic and spicier flavour. The skin is also edible and tastes a bit like rose petals but is often removed for a sweeter flavour. The seeds are small and white in colour and can be roasted as a substitute for coffee. Its leaves may be brewed for tea.
- USDA-ARS. "GRIN Taxonomy for Plants". Retrieved 9 June 2011.
- Missouri Botanical Gardens. "Tropicos.org". Retrieved 9 June 2011.
- US Forest Service, Institute of Pacific Islands Forestry. "Biological Control of Strawberry Guava in Hawaii". Retrieved 29 June 2012.
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- Photo of ripening lemon guavas. Retrieved 2007-NOV-25.
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