Siderasis
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Clade: Commelinids
Order: Commelinales
Family: Commelinaceae
Subfamily: Commelinoideae
Tribe: Tradescantieae
Subtribe: Dichorisandrinae
Genus: Siderasis
Raf.
Species:
S. fuscata
Binomial name
Siderasis fuscata
(Lodd.) H.E.Moore
Synonyms[1]
  • Pyrrheima Hassk.
  • Siderasis acaulis Raf.
  • Tradescantia fuscata G.Lodd.
  • Pyrrheima loddigesii Hassk.
  • Pyrrheima fuscatum (G.Lodd.) Backer
  • Tradescantia hirsutissima Pohl ex Seub.
  • Pyrrheima minus Hassk.
  • Pyrrheima loddigesii var. minus (Hassk.) C.B.Clarke

Siderasis is a genus of monocotyledonous flowering plants in the dayflower family, first described in 1837. It consists of a single known species, Siderasis fuscata, endemic to the State of Rio de Janeiro in southeastern Brazil, though it is also naturalized on the Island of Java in Indonesia.[2][3][4]

Common English names of Siderasis fuscata are "bears ears" for their leaves being covered in many tiny "hairs" and their broad oval shape and "brown spiderwort" because the color mix of its foliage sometimes is perceived as "chocolate-colored".

a potted Siderasis fuscata, showing the size and shape of the leaves, the middle line and here looking brownish

The upper sides of the leaves are green with silvery and reddish hues and a lighter stripe down the middle; their undersides are reddish purple.

Siderasis fuscata planted between other leavy vegetation of different colourings showing its green and purple and furry "hairs"
Siderasis fuscata in another light looking more yellowish green and lighter reddish purple and showing its low growing habitus

Its flowers have three blueish purple petals; for their similarity to Tradescantiaflowers, Siderasis had formerly been included in Tradescantiae.

In warmer climates, Siderasis can be planted in parks and gardens; in temperate regions it is kept by botanical gardens in glass houses and used as houseplants.[5][6][7][8]

References

  1. ↑ Kew World Checklist of Selected Plant Families
  2. ↑ "World Checklist of Selected Plant Families: Royal Botanic Gardens, Kew". apps.kew.org. Retrieved 2016-02-20.
  3. ↑ Giulietti & al. (2009). Plantas raras do Brasil: 1-496. Conservação International, Belo Horizonte, Mato Grosso, Brazil
  4. ↑ Forzza, R. C. 2010. Lista de espécies Flora do Brasil http://floradobrasil.jbrj.gov.br/2010. Jardim Botânico do Rio de Janeiro, Rio de Janeiro
  5. ↑ "PlantFiles Pictures: Brown Spiderwort (Siderasis fuscata) by TexGal". Dave's Garden. Retrieved 2016-02-20.
  6. ↑ "Catalog - Brown Spiderwort". www.accentsforhomeandgarden.com. Retrieved 2016-02-20.
  7. ↑ "Greenhouse Siderasis Fuscata Brown Spiderwort - all greenhouse siderasis fuscata brown spiderwort sites of biology resources online, Page 2". www.biologydir.com. Retrieved 2016-02-20.
  8. ↑ Exotic Angel Plants, Hermann Engelmann Greenhouses, Apopka Florida USA


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