Ornithogalum adseptentrionesvergentulum
Ornithogalum adseptentrionesvergentulum is a species of flowering plant in the family Asparagaceae, native to the Cape Provinces of South Africa. This monocot from the Great Karoo desert is one of the world's smallest bulb species, under  tall, and yet it has the longest valid plant name. The specific epithet means "inclined towards the north". References

adseptentrionesvergentulum
Endemic flora of the Cape Provinces
Plants described in 1996