At present only a limited number of cultivated varieties are on the market.
A number of varieties have been developed since then by various developers.
Two years ago, I walked our land and tried to count the number of varieties, concluding there were at least 14.
The number of varieties continues to grow, each made from a certain region's particular specialty ingredients.
The species is highly variable and a number of varieties have been named.
This plant is variable in appearance, and there are a number of varieties.
However, a number of international varieties are also in cultivation.
A number of varieties and forms have been published since then, but none are currently maintained.
The park has a number of unusual varieties of trees.
The trick is to grow a number of different varieties.