| Wolffia angusta | |
|---|---|
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Embryophytes |
| Clade: | Tracheophytes |
| Clade: | Spermatophytes |
| Clade: | Angiosperms |
| Clade: | Monocots |
| Order: | Alismatales |
| Family: | Araceae |
| Genus: | Wolffia |
| Species: | W. angusta
|
| Binomial name | |
| Wolffia angusta Landolt, 1980
| |
Wolffia angusta is a species of duckweed (Lemnoideae) in the family Araceae, native to the warmer regions of Australia, New Guinea, and with a disjunct presence in Peninsular Malaysia.2 It has been listed by the Guinness Book of World Records as the smallest flowering plant on record, measuring 0.6 millimetres (0.02 in) long and 0.33 mm (0.01 in) wide.3 However, more recently Wolffia globosa has been described as the smallest, at 0.1–0.2 mm (0.004–0.008 in) in diameter.4 According to Guinness World Records the fruit of Wolffia angusta is the smallest of any flowering plant, only 0.25 mm long, and weighs only 70 μg.5
References
References
- Lansdown, R.V. (2011). "Wolffia angusta". IUCN Red List of Threatened Species. 2011 e.T199685A9117304. doi:10.2305/IUCN.UK.2011-2.RLTS.T199685A9117304.en. Retrieved 20 November 2021.
- "Wolffia angusta Landolt". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 2025-07-04.
- Young, Mark C., ed. (1996). Guinness Book of World Records 1997. Guinness Publishing Ltd. pp. 42. ISBN 0-9652383-0-X.
- Lock, Helen (4 Sep 2013). "Rare bloom for Wolffia Globosa, the world's smallest flowering plant". The Daily Telegraph. London. Retrieved 25 Sep 2016.
- Craig Glenday, ed. (2005). Guinness World Records - 2006. London: Guinness World Records Ltd. p. 96. ISBN 1-904994-02-4.