Flowers of pedicularis procera
are creamy yellow in color, crossed by reddish-pink veins, and are subtended by light green bracts, similarly veined, a characteristic that differentiates this species from pedicularis bracteosa
, as this lacks veins. It is also a taller plant, up to 5 feet rather than 2 to 3 feet. The corolla is up to 1.4 inches long, divided into a beaked upper lip which has a few small teeth along its upper margin, and a broader lower lip, split into three rounded lobes. Flowers are produced in a dense, elongated cluster, and they are angled upwards and outwards.
Leaves are mostly cauline, and are divided into narrow leaflets, approximately in pairs, which are lined by sharp teeth, themselves edged by smaller teeth. The unbranched stems are green or reddish in color. The bracts, the upper stems and the green fruits have a covering of short hairs.