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Watsonia (plant)

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Watsonia
Watsonia fulgens
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Asparagales
Family: Iridaceae
Subfamily: Crocoideae
Tribe: Watsonieae
Genus: Watsonia
Mill.
Type species
Watsonia meriana
Species

58 species (see text).

Synonyms[1]
  • Lemonia Pers.
  • Lomenia Pourr.
  • Meriana Trew
  • Warneria Mill. ex L.

Watsonia (bugle lily) is a genus of plants in the family Iridaceae, subfamily Crocoideae. Watsonias are native to southern Africa (South Africa, Lesotho, Eswatini).[1] The genus is named after Sir William Watson, an 18th-century British botanist.[2]

Diversity

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Watsonia field

There are 56 accepted species in southern Africa, with two varieties and about 112 names either unresolved or regarded as synonyms.[3] All are perennial herbs growing from corms and producing erect spikes of showy flowers. Most are fynbos plants, adapted to a Mediterranean-type climate, but some occur along the eastern and inland areas of the country and adapted to a wider range of conditions, mainly continental climate with summer rainfall. Many species occur mainly in the mountains, though some occur in sandy flats and marshy areas.

Cultivation

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The most commonly cultivated species is the pink-flowered Watsonia borbonica and its white mutant 'Arderne's White'. These were crossed with Watsonia meriana and other species in the early 20th century by breeders including John Cronin in Australia and Luther Burbank in California to produce a wide range of cultivars. Watsonia has been eclipsed in popularity by Gladiolus and other bulbs, and is now neglected by the nursery industry.

Distribution

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Native to South Africa, Watsonia species were introduced as garden ornamentals to Australia in the mid-19th century and were widely grown by the 1940s.

In the South-West of Western Australia, six species have become naturalised from garden escapes along rivers, wetlands and seasonally wet ground. In places Watsonia spp. have displaced native understorey flora; concentrations of them create a fire hazard in summer.[4]

Watsonia meriana var. bulbillifera is also a weed in New Zealand, Réunion and Mauritius.[5]

Systematics

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The genus comprises 58 species.

See also

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Notes

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  1. ^ a b Kew World Checklist of Selected Plant Families
  2. ^ Manning, John; Goldblatt, Peter (2008). The Iris Family: Natural History & Classification. Portland, Oregon: Timber Press. pp. 135–38. ISBN 978-0-88192-897-6.
  3. ^ The Plant List (2010). Version 1. Published on the Internet; [1] (accessed 1 September 2012)
  4. ^ Environmental Weeds Action Network (Western Australia)
  5. ^ "Wild Watsonia - Department of Primary Industry". 2007. Retrieved 8 May 2009.

References

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  • Goldblatt, P. (1989) The Genus Watsonia. Ann. Kirstenbosch Bot. Gard. 19. (National Botanic Gardens: Cape Town).

Hussey, BMJ; Keighery GJ; Cousens RD; Dodd J; Lloyd SG (1997). Western Weeds: A Guide to the Weeds of Western Australia. Perth: Plant Protection Society of WA. ISBN 0-646-32440-3.

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