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Longflower tobacco
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Asterids
Order:	Solanales
Family:	Solanaceae
Genus:	Nicotiana
Species:	N. longiflora
Binomial name
Nicotiana longiflora Cav.

Nicotiana longiflora, the longflower tobacco or long-flowered tobacco, is a species of tobacco native to South America that is sometimes cultivated for its tubular flowers that emit a very sweet odour at night.

This plant has been a significant source of disease resistance in flue-cured and burley tobacco. Some of the disease impacted by resistance from this species are: black shank, cyst nematode, root-knot nematode, and wildfire. The resistance form N. longiflora imparts near immunity to race 0 black shank, but no resistance to race 1. One of the varieties still in use today is 14 x L8, the second most popular burley tobacco variety in the U.S.

References

1. NRCS. "Nicotiana longiflora". PLANTS Database. United States Department of Agriculture (USDA). Retrieved 29 January 2016.
2. BSBI List 2007 (xls). Botanical Society of Britain and Ireland. Archived from the original (xls) on 2015-06-26. Retrieved 2014-10-17.

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