Cordylanthus tenuis subsp. pallescens
Syst. Bot. Monogr. 10: 55. 1986.
Stems sparsely puberulent and/or glandular-puberulent and, often, pilose. Leaves yellow-green, entire or 3-lobed, lobes linear to linear-lanceolate. Inflorescences 4–6-flowered; bracts yellow-green, 3-lobed or entire, sparsely pilose with long hairs. Flowers: corolla 10–15 mm. 2n = 28.
Phenology: Flowering Jun–Sep.
Habitat: Open volcanic alluvium.
Elevation: 900–1200 m.
Subspecies pallescens grows in Siskiyou County near Black Butte and the town of Weed (B. L. Wilson et al. 2014). It is similar to subsp. viscidus, differing in its yellow-green color and inflorescences with four to six pale flowers.