CREATE TABLE table_10477224_1 (species VARCHAR, petal_width VARCHAR, petal_length VARCHAR)

Name the species when petal width is 2.0 and petal length is 4.9
SELECT species FROM table_10477224_1 WHERE petal_width = "2.0" AND petal_length = "4.9"
SELECT "species" FROM "table_10477224_1" WHERE "2.0" = "petal_width" AND "4.9" = "petal_length"