Allium macranthum

{{Short description|Species of flowering plant}}

{{Speciesbox

|name=大花韭 da hua jiu

| taxon = Allium macranthum

| parent = Allium subg. Amerallium

| image = Allium macranthum - Flickr - peganum.jpg

| authority = Baker

|synonyms=*Allium oviflorum Regel

• Allium simethis H.Lév.

|synonyms_ref=[http://www.tropicos.org/Name/18406631?tab=synonyms Tropicos][http://www.theplantlist.org/tpl1.1/record/kew-295947 The Plant List]

}}

Allium macranthum is an Asian species of wild onion native to Bhutan, Sikkim, Gansu, Shaanxi, Sichuan and Tibet. It grows in wet places at elevations of 2700–4200 metres.[http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=200027500 Flora of China v 24 p 176 Allium macranthum]Noltie, H.J. (1994). Flora of Bhutan 3(1): 1-456. Royal Botanic Gardens, Edinburgh{{Cite web |url=http://cms.cnr.edu.bt/plantdb/index.php?c=items&s=more&id=71 |title=Digital Flora of Bhutan, Allium macranthum |access-date=2015-04-14 |archive-url=https://web.archive.org/web/20150415011605/http://cms.cnr.edu.bt/plantdb/index.php?c=items&s=more&id=71 |archive-date=2015-04-15 |url-status=dead }}

Allium macranthum has short, thick roots and a cylindrical bulb. Scapes are up to 60 cm tall. Leaves are flat, long, and thin, about the same length as the scapes but less than 2 cm across. Umbels have only a few purple, bell-shaped flowers.[http://www.botanicus.org/page/1897160 Baker, John Gilbert. 1874. Journal of Botany, British and Foreign 12(142): 293.]Regel, Eduard August von. 1884. Trudy Imperatorskago S.-Peterburgskago Botaničeskago Sada 8: 658.[https://www.biodiversitylibrary.org/item/7036#page/297/mode/1up Augustin Abel Hector Léveillé. 1913. Repertorium Specierum Novarum Regni Vegetabilis 12(325–330): 288.][http://www.tropicos.org/Image/56789 line drawing of Allium macranthum, Flora of China Illustrations vol. 24, fig. 170, 1-4 ][http://www.tropicos.org/ImageFullView.aspx?imageid=100178525 photo of herbarium specimen at Missouri Botanical Garden, collected in Bhutan, Allium macranthum]