Some ecological purists have always argued you should only plant trees from strictly local sources.
Toyota's current Canadian operation is the only plant outside of Japan making Lexus models.
The only plant in the country producing nuclear fuel elements is located at Salwick.
It is the last auto plant operating in California and Toyota's only plant represented by the United Automobile Workers.
It is also the only plant still producing the old Beetles, which are sold only in Mexico.
TTM, based in Redmond, Wash., said it had paid about $2 million for Advanced Circuits, which employs about 700 workers at its only plant, in Chippewa Falls, Wis.
The elm is the only plant in the UK that clones itself, so the hedgerow plants, trimmed into knobbly berms, are all identical in every detail.
This is the only plant in the garden that requires special attention: since it cannot take acidic soil, crushed limestone is carefully worked in wherever it is placed.
Washington's only plant will be shut down in 2020; the only one in Oregon will close in either 2020 or 2025.
When nearby hills turned green with the rains, the farm became carpeted with white wildflowers the only plant that the goats would not eat.
Cascade gives incentive to labels in the Pacific north-west – they're the only plant in the region, and shipping costs decrease when you press locally.
