Wurmbea dioica

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Early Nancy
Wurmbea dioica flowers.jpg
Near Goulburn, male flowers above female flowers
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Liliales
Family: Colchicaceae
Genus: Wurmbea
Species:
W. dioica
Binomial name
Wurmbea dioica
(R.Br.) F.Muell. [1]
Synonyms [1]

Wurmbea dioica, commonly known as early Nancy, [2] is a species of plant in the family Colchicaceae and is endemic to Australia. It is a herb with three linear to thread-like leaves and usually two to seven white flowers with a purple or greenish nectary band.

Contents

Description

Wurmbea dioica is a herb that typically grows to a height of 3.5–40 cm (1.4–15.7 in) and has three linear to thread-like or tapering leaves 10–350 mm (0.39–13.78 in) long and 0.2–6 mm (0.0079–0.2362 in) wide with a sheathing base. Individual plants may have male-only, female-only or both male and female flowers and sometimes bisexual flowers. There are up to fifteen flowers on each plant, each with six elliptic white tepals 3.5–11.5 mm (0.14–0.45 in) long. Each tepal has a purple to greenish or white nectary band one-quarter to half the length from its base. The stamens are half to two-thirds as long as the tepals and the anthers are about 1 mm (0.039 in) long and red or purple. Flowering occurs mainly from June to November and the fruit is a capsule 5–10 mm (0.20–0.39 in) long. [2] [3] [4] [5]

Taxonomy

This species was first formally described in 1810 by Robert Brown who gave it the name Anguillaria dioica and published the description in Prodromus Florae Novae Hollandiae et Insulae Van Diemen . [6] [7] In 1877, Ferdinand von Mueller changed the name to Wurmbea dioica in Fragmenta Phytographiae Australiae . [8]

The names of three subspecies are accepted by the Australian Plant Census:

Distribution and habitat

Wurmbea dioica is widespread and common in all six Australian states and the Australian Capital Territory but is not known from the Northern Territory. It grows in a wide variety of habitats. Subspecies dioica is the most common subspecies, occurring in all eastern states, South Australia and the Australian Capital Territory. Subspecies brevifolia is found in Victoria and South Australia, growing in drier places that subsp. dioica, and subsp. alba is restricted to Western Australia where it grows in winter-wet swamps and around granite rocks. [10] [12] [14] [15]

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References

  1. 1 2 "Wurmbea dioica". Australian Plant Census. Retrieved 7 September 2020.
  2. 1 2 Harden, Gwen J. "Wurmbea dioica". Royal Botanic Garden Sydney. Retrieved 7 September 2020.
  3. ↑ Messina, Andre. "Wurmbea dioica". Royal Botanic Gardens Victoria. Retrieved 7 September 2020.
  4. ↑ "Wurmbea dioica". State Herbarium of South Australia. Retrieved 7 September 2020.
  5. ↑ Vaughton, Glenda; Ramsey, Mike (June 1998). "Floral display, pollinator visitation and reproductive success in the dioecious perennial herb Wurmbea dioica (Liliaceae)". Oecologia. Springer-Verlag. 115 (1): 93–101. Bibcode:1998Oecol.115...93V. doi:10.1007/s004420050495. PMID   28308473. S2CID   8747199.
  6. ↑ "Anguillaria dioica". APNI. Retrieved 7 September 2020.
  7. ↑ Brown, Robert (1810). Prodromus Florae Novae Hollandiae et Insulae Van Diemen. London: typis R. Taylor et socii,1810. p. 273. Retrieved 7 September 2020.
  8. ↑ "Wurmbia dioica". APNI. Retrieved 7 September 2020.
  9. ↑ "Wurmbea dioica subsp. alba". Australian Plant Census. Retrieved 7 September 2020.
  10. 1 2 "Wurmbea dioica subsp. alba". FloraBase . Western Australian Government Department of Parks and Wildlife.
  11. ↑ "Wurmbea dioica subsp. brevifolia". Australian Plant Census. Retrieved 7 September 2020.
  12. 1 2 Messina, Andre. "Wurmbea dioica subsp. brevifolia". Royal Botanic Gardens Victoria. Retrieved 7 September 2020.
  13. ↑ "Wurmbea dioica subsp. dioica". Australian Plant Census. Retrieved 7 September 2020.
  14. 1 2 Conran, John G. "Wurmbea dioica subsp. dioica". Royal Botanic Gardens Victoria. Retrieved 7 September 2020.
  15. ↑ Bates, Robert J. (2007). "A review of South Australian Wurmbea (Colchicaceae- Liliaceae): keys, new taxa and combinations, and notes" (PDF). Journal of the Adelaide Botanic Gardens. 21: 77–79. Retrieved 7 September 2020.
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