Allium macrum
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Asparagales
Family: Amaryllidaceae
Subfamily: Allioideae
Genus: Allium
Species:
A. macrum
Binomial name
Allium macrum
Synonyms[1]

Allium equicaeleste H.St. John

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.[2][3] It is a perennial herb.[4]

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.[2][5][6][7]

References

  1. ↑ Tropicos
  2. 1 2 Flora of North America v 26 p 267, Allium macrum
  3. ↑ BONAP (Biota of North America Program) floristic synthesis, Allium macrum
  4. ↑ "Lady Bird Johnson Wildflower Center - The University of Texas at Austin". www.wildflower.org.
  5. ↑ Hitchcock, C. H., A.J. Cronquist, F. M. Ownbey & J. W. Thompson. 1969. Vascular Cryptogams, Gymnosperms, and Monocotyledons. 1: 1–914. In C. L. Hitchcock Vascular Plants of the Pacific Northwest. University of Washington Press, Seattle.
  6. ↑ Watson, Sereno. 1879. Proceedings of the American Academy of Arts and Sciences 14: 233.
  7. ↑ St. John, Harold. 1931. Proceedings of the Biological Society of Washington 44(10): 31–32.
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