Allium sanbornii

Allium sanbornii
Allium sanbornii var. congdonii[1]
Scientific classification
Kingdom: Plantae
Clade: Angiosperms
Clade: Monocots
Order: Asparagales
Family: Amaryllidaceae
Subfamily: Allioideae
Tribe: Allieae
Genus: Allium
Species: A. sanbornii
Binomial name
Allium sanbornii
Alph.Wood
Synonyms[2]

Allium sanbornii is a North American species of wild onion known by the common name Sanborn's onion.[2] It is native to northern California and southwestern Oregon.[3] It grows in the serpentine soils of the southern Cascade Range and northern Sierra Nevada foothills.[4][5]

Allium sanbornii produces a reddish-brown bulb up to about 2.5 centimeters long. Scape up to 60 centimeters long, bearing a single cylindrical leaf which is about the same length. The umbel contains as many as 150 small flowers, each with tepals less than a centimeter long, pink to white with darker red midveins. Anthers are yellow or purple; pollen yellow or white.[5][6][7]

Varieties[2][8]


formerly included[2][9]


References

  1. ↑ photo of herbarium specimen at Jepson Herbarium, University of California @ Berkeley, collected in 2005 in Nevada County, California
  2. 1 2 3 4 Kew World Checklist of Selected Plant Families
  3. ↑ Biota of North America Program 2014 county distribution map
  4. ↑ USDA Plants Profile
  5. 1 2 Flora of North America, Allium sanbornii
  6. ↑ Jepson Manual Treatment
  7. ↑ Wood, Alphonso. 1868. Proceedings of the Academy of Natural Sciences of Philadelphia 20(6): 171.
  8. ↑ Calflora Taxon Report 229, Allium sanbornii Alph. Wood, Sanborn's onion
  9. ↑ Denison, S.S. & McNeal, Dale W. 1989. Madroño 36(2): 127-128


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