Goodenia heppleana is an erect, low-lying or prostrate herb with stems up to long and hairy. The leaves at the base of the plant are lance-shaped with the narrower end towards the base, about long and wide. The flowers are arranged in a racemes up to long with leaf-like bracts, each flower on a hairy pedicel long. The sepals are lance-shaped to narrow elliptic, about long, the corolla yellow, hairy on the back, long. The lower lobes of the corolla are long with wings wide. Flowering mainly occurs from February to June and the fruit is a more or less spherical nut about in diameter.