Freesia

From Wikipedia, the free encyclopedia
Jump to: navigation, search
For the manga, see Freesia (manga).
Freesia
Freesia.jpg
Cultivated freesias
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Monocots
Order: Asparagales
Family: Iridaceae
Subfamily: Ixioideae
Genus: Freesia
Eckl. ex Klatt
Type species
Freesia refracta
(Jacquin) Klatt
Synonyms[1]

Freesia is a genus of flowering plants in the family Iridaceae, first described as a genus in 1866. It is native to the eastern side of southern Africa, from Kenya south to South Africa,[1] most species being found in Cape Province.[citation needed] Species of the former genus Anomatheca are now included in Freesia.[1] The plants commonly known as "freesias", with fragrant funnel-shaped flowers, are cultivated hybrids of a number of Freesia species. Some other species are also grown as ornamental plants.

Description[edit]

They are herbaceous plants which grow from a corm 1–2.5 cm diameter, which sends up a tuft of narrow leaves 10–30 cm long, and a sparsely branched stem 10–40 cm tall bearing a few leaves and a loose one-sided spike of flowers with six tepals. Many species have fragrant narrowly funnel-shaped flowers, although those formerly placed in the genus Anomatheca, such as F. laxa, have flat flowers.

Freesias are used as food plants by the larvae of some Lepidoptera species including Large Yellow Underwing.[citation needed]

Systematics[edit]

The genus was named in honor of Friedrich Heinrich Theodor Freese (1795–1876), German physician.[2]

Species[1]
  1. Freesia andersoniae L.Bolus - Cape Province, Free State
  2. Freesia caryophyllacea (Burm.f.) N.E.Br. (syn. F. elimensis L.Bolus, F. parva N.E.Br., F. xanthospila (DC.) Klatt) - Heuningrug region in Cape Province
  3. Freesia corymbosa (Burm.f.) N.E.Br. (syn. F. armstrongii W.Watson, F. brevis N.E.Br.) - Cape Province
  4. Freesia fergusoniae L.Bolus - Cape Province
  5. Freesia fucata J.C.Manning & Goldblatt - Hoeks River Valley in Cape Province
  6. Freesia grandiflora (Baker) Klatt - Zaire, Tanzania, Malawi, Mozambique, Zambia, Zimbabwe, Swaziland, northeastern South Africa
  7. Freesia laxa (Thunb.) Goldblatt & J.C.Manning (syn. F. cruenta (Lindl.) Klatt) - from Rwanda + Kenya south to Cape Province; naturalized in Madeira, Mauritius, Réunion, Australia, Florida, Argentina
  8. Freesia leichtlinii Klatt (syn. F. middlemostii F.Barker, F. muirii N.E.Br.) - Cape Province; naturalized in Corsica, California, Florida, Argentina
  9. Freesia marginata J.C.Manning & Goldblatt - Cape Province
  10. Freesia occidentalis L.Bolus (syn. F. framesii L.Bolus) - Cape Province
  11. Freesia praecox J.C.Manning & Goldblatt - Cape Province
  12. Freesia refracta (Jacq.) Klatt (syn. F. hurlingii L.Bolus) - Cape Province; naturalized in France, Canary Islands, Madeira, Bermuda, St. Helena
  13. Freesia sparrmanii (Thunb.) N.E.Br. - Langeberg in Cape Province
  14. Freesia speciosa L.Bolus (syn. F. flava (E.Phillips & N.E.Br.) N.E.Br.) - Cape Province
  15. Freesia verrucosa (B.Vogel) Goldblatt & J.C.Manning (syn. F. juncea (Pourr.) Klatt) - Cape Province
  16. Freesia viridis (Aiton) Goldblatt & J.C.Manning - Namibia, Cape Province

Species of the former genus Anomatheca are now included in Freesia:[1]

Cultivation and uses[edit]

The plants usually called "freesias" are derived from crosses made in the 19th century between F. refracta and F. leichtlinii. Numerous cultivars have been bred from these species and the pink- and yellow-flowered forms of F. corymbosa. Modern tetraploid cultivars have flowers ranging from white to yellow, pink, red and blue-mauve. They are widely cultivated and readily increased from seed. Due to their specific and pleasing scent, they are often used in hand creams, shampoos, candles, etc.[citation needed]

They can be planted in the fall in USDA Hardiness Zones 9-10 (i.e. where the temperature does not fall below about −7 °C (20 °F)), and in the spring in Zones 4-8.[3]

Freesia laxa (formerly called Lapeirousia laxa or Anomatheca cruenta) is one of the other species of the genus which is commonly cultivated. Smaller than the scented freesia cultivars, it has flat rather than cup-shaped flowers.[4][5]

Extensive 'forcing' of this bulb occurs in Half Moon Bay in California where several growers chill the bulbs in proprietary methods to satisfy cold dormancy which results in formation of buds within a predicted number of weeks – often 5 weeks at 55°F.[citation needed]

References[edit]

  1. ^ a b c d e Search for "Freesia", World Checklist of Selected Plant Families, Royal Botanic Gardens, Kew, retrieved 2012-08-13 
  2. ^ Manning, John; Goldblatt, Peter (2008). The Iris Family: Natural History & Classification. Portland, Oregon: Timber Press. pp. 149–52. ISBN 0-88192-897-6. 
  3. ^ Live to garden: Freesia
  4. ^ Mathew, Brian (1987), The Smaller Bulbs, London: B.T. Batsford, ISBN 978-0-7134-4922-8 , p. 9
  5. ^ Innes, Clive (1985), The World of Iridaceae, Ashington, UK: Holly Gate International, ISBN 978-0-948236-01-3 , p. 18
  • Goldblatt, P. (1982) Systematics of Freesia Klatt (Iridaceae) J. South African Bot. 48:39-93.

External links[edit]