This is a leap, but I am going to guess you mean "Washington Bent Grass", an old, old cultivar of bentgrass. A close cultivar - and the genus is the same - would be Agrostis oregonensis."Agrostis" is a grass, closely related to "poa"the generic lawn grass.
banana
Pumpkins are a cultivar of a squash of the genus Cucurbita (winter squash) which naturally diversified into several variants. It was grown by ancient people such as the Zuni for several thousands of years.
A pakalolo is a cultivar of marijuana which is said to be the world's best, or a person who smokes this cultivar.
Australian Cultivar Registration Authority was created in 1963.
Plants are classified according to the family, genus and species. We can also include the variety, subspecies or cultivar to help identify a plant. The more you go down the group, the lesser are the differences.
Greenroe Lucas is a 2012 daylily cultivar and there is an Alexander Lucas pear cultivar.
"Group" is not a taxonomic rank, such as Life, Domain, Kingdom, Phylum, Class, Order, Family, Genus, and Species. The other possible use of "group" is in reference to Cultivar Group, but an Oak Tree is not a Cultivar. Please restate the question.
An arbequina is a Spanish olive cultivar.
The scientific name for the Rose flower Glowing Peace is Rosa 'Glowing Peace'. It belongs to the genus Rosa and is a hybrid tea rose cultivar.
A greengage is a cultivar of plum.
A Cultivar Sword Fern.