Primula firmipes was initially collected by George Forrest on the Salween/Kiu-chiang divide. P. flexilipes was collected at the same location and P. deleiensis was collected less than 200 kms to the west in the Delei valley. Both are minor variations of P. firmipes. P. erytha was collected with P. deleiensis but is red flowered instead of yellow. The recent book "The Genus Primula L. in India" by Basak, Maiti and Hajra place P. subansirica as a subspecies of P. firmipes. This species is little known, and superficially resembles P. firmipes but differs in that the plant is covered in rusty red hairs.
Primula firmipes has ovate to ovate-oblong or suborbicula leaves, rounded at the apex, with a shallowly cordate base and a crenate-dentate margin. In this it resembles P. florindae but the leaves are much smaller being 1-7 x 1-5cm. The corolla is similar to P. alpicola and a pale yellow in color.
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