Kingdom Plantae Clade Monocots Family Amaryllidaceae Rank Species | Clade Angiosperms Order Asparagales Subfamily Allioideae | |
Similar Allium fibrillum, Allium obtusum, Allium parvum | ||
Allium macrum, the rock onion, is an American species of wild onion native to the eastern and central parts of the US States of Oregon and Washington. It grows on gravelly soils at elevations up to 1400 m.
Allium macrum produces round to egg-shaped bulbs up to 2 cm long. Flowers are white with a green stripe running the length of each tepal. Anthers and pollen are yellow.
References
Allium macrum Wikipedia(Text) CC BY-SA