Taraxacum pankhurstianum

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Taraxacum pankhurstianum
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Taraxacum
Species:
T. pankhurstianum
Binomial name
Taraxacum pankhurstianum
A.J.Richards & Ferguson-Smyth (2012)

Taraxacum pankhurstianum, also known as the St Kilda dandelion, [1] is a species of dandelion that was identified as new in 2012 after being cultivated at the Royal Botanic Garden Edinburgh from seeds collected two years previously on the island of Hirta, the largest island in the St Kilda archipelago, on the western edge of Scotland. [2]

Contents

The species was named for Richard Pankhurst, a retired staff member at the garden who suggested that the seeds be collected. [1]

It was described in A. J. Richards & C. C. Ferguson-Smyth, New Journal of Botany 2(1): 16. 2012 [31 May 2012]. [3]

Description

It is the presence of unique hairy exterior bracts on the flower bud that led botanists to believe it is a new species of Asteraceae, the largest family of flowering plants. The St Kilda dandelion is also much smaller than the common dandelion. [1]

History

The plant has, so far, only been found on the island of Hirta which was abandoned by its last residents in 1930. [1] [2] Botanists believe it may be endemic to the area and among the rarest plants in Scotland's flora. [4] It may be rare on St Kilda because it is eaten by animals including sheep and perhaps, some birds. [1]

The flower may have originated in Iceland and been carried to Hirta by birds, or the Vikings. [2]

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St Kilda is an isolated archipelago situated 64 kilometres (40 mi) west-northwest of North Uist in the North Atlantic Ocean. It contains the westernmost islands of the Outer Hebrides of Scotland. The largest island is Hirta, whose sea cliffs are the highest in the United Kingdom; three other islands were also used for grazing and seabird hunting. The islands are administratively a part of the Comhairle nan Eilean Siar local authority area.

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Hirta is the largest island in the St Kilda archipelago, on the western edge of Scotland. The names Hiort and Hirta have also been applied to the entire archipelago. Now without a permanent resident population, the island had nearly all of St Kilda's population of about 180 residents in the late 17th century and 112 in 1851. It was abandoned in 1930 when the last 36 remaining inhabitants were evacuated to Lochaline on the mainland.

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<span class="mw-page-title-main">Stephen Blackmore</span> British botanist

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Richard John Pankhurst (1940–2013) was a British computer scientist, botanist and academic. From 1963 to 1966 he worked at CERN, then from 1966 to 1974 on computer-aided design at Cambridge University, and from 1974 to 1991 at the Natural History Museum as curator of the British herbarium. In 1991, he became a Principal Scientific Officer at the Royal Botanic Garden Edinburgh.

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References

  1. 1 2 3 4 5 Royal Botanical Garden Edinburgh. "New Dandelion Found". Archived from the original on 26 September 2017. Retrieved 29 June 2012.
  2. 1 2 3 BBC News. "New species of dandelion discovered on St Kilda island" . Retrieved 29 June 2012.
  3. Richards, A J; Ferguson-Smyth, C C (2012). "Taraxacum pankhurstianum(Asteraceae), a new dandelion endemic to St Kilda, Outer Hebrides, Scotland". New Journal of Botany. 2 (1): 16–19. doi:10.1179/2042349712Y.0000000006. ISSN   2042-3489.
  4. UK Press Association. "New species of dandelion found" . Retrieved 29 June 2012.