Digitalis lamarckii has basal leaves that are obovate to linear in shape and 5 to 20cm (sometimes to 25cm ) long and 3 to 13mm wide. At the midpoint of the flowering stem, the leaves are 4 to 14mm wide, linear or lanceolate shaped, and hairless. The flowers are arranged in to a raceme that is usually lax with the top of the inflorescence axis having pubescent hairs but hairless below. The corolla is 15 to 30mm (sometimes to 35mm) long. the lower lobe of the corolla is 7 to 14mm long, linear to oblong-obovate in shape and narrowed below, it is whitish in color with light reddish-brown or yellowish-brown veins. The fruits are a capsule 10 to 20mm long.[4]
