Allium hollandicum

Allium hollandicum, the Persian onion[1][2] or Dutch garlic,[3] is a species of flowering plant native to Iran and Kyrgyzstan[4] but widely cultivated as an ornamental because of its umbels of attractive purple flowers.[5][6][7] It is reportedly naturalized in Saint Louis County, Minnesota.[8][9][10]

Allium hollandicum
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Asparagales
Family: Amaryllidaceae
Subfamily: Allioideae
Genus: Allium
Species:
A. hollandicum
Binomial name
Allium hollandicum
R.M. Fritsch

Allium hollandicum is a bulb-forming perennial with scapes up to 90 cm (35 in) tall. It has long, flat, strap-shaped leaves up to 60 cm (24 in) long. Umbels are relatively small and spherical, up to 10 cm (3.9 in) in diameter, composed of many purple to reddish-purple star-shaped flowers appearing in late spring and early summer.[11][12][13]

The popular cultivar ‘Purple Sensation’ has gained the Royal Horticultural Society’s Award of Garden Merit.[3] It prefers moist, fertile soil in full sun.

References
  1. Great Plant Picks, Allium hollandicum ‘Purple Sensation’
  2. "Battery Conservancy Plant Database, Allium hollandicum 'Purple Sensation' Purple globe onion". Archived from the original on 2014-03-10. Retrieved 2014-03-21.
  3. "RHS Plantfinder - Allium hollandicum 'Purple Sensation'". Royal Horticultural Society. 1993. Retrieved 5 January 2018.
  4. Kew World Checklist of Selected Plant Families
  5. Pacific Bulb Society, Allium Species Two
  6. "Battery Plant Conservancy, New York, Battery Database, Allium hollandicum 'Purple Sensation' Purple globe onion". Archived from the original on 2014-03-10. Retrieved 2014-03-21.
  7. Le Jardin de Sophie, Bruxelles, Allium hollandicum ( = A. aflatunense) ail décoratif (alliacée)
  8. "Anita F. Cholewa. 2011. Annotated Checklist of the Flora of Minnesota" (PDF). Archived from the original (PDF) on 2015-04-17. Retrieved 2014-03-21.
  9. BONAP (Biota of North America Project), floristic synthesis, Allium hollandicum
  10. Fritsch, R.M., Blattner, F.R. & Gurushidze, M. (2010). New classification of Allium L. subg. Melanocrommyum (Webb & Berthel.) Rouy (Alliaceae) based on molecular and morphological characters. Phyton: Annales Rei Botanicae 49: 145-320.
  11. Fritsch, Reinhard M. 1993. Candollea 48(2): 422.
  12. "Royal Horticultural Society, London, Allium hollandicum 'Purple Sensation'". Archived from the original on 2014-02-27. Retrieved 2014-03-21.
  13. Fritsch, R.M., Blattner, F.R. & Gurushidze, M. (2010). New classification of Allium L. subg. Melanocrommyum (Webb & Berthel.) Rouy (Alliaceae) based on molecular and morphological characters. Phyton: Annales Rei Botanicae 49: 145-320.
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