[1][2] The plant may grow four to eight flowers, each up to 13 inches in diameter.

The flowers are a glossy bright golden yellow with brown barring.

Larger petals are yellow with the lower half red-brown.

The pseudobulbs are gray-green in color, and grow from 4 to 10 cm, each with two leaves.

Rossioglossum grande prefers hot, wet summers and cool, dry winters.