Erythranthe Unimaculata, Green-Palate Monkeyflower

Erythranthe unimaculata is an early-flowering species, found in moist and riparian habitats. Stems are ascending to erect, branched or (usually) not, around one foot tall but sometimes up to three feet. Stems may be glabrous, or sparsely covered with glandular hairs. Leaves are concentrated around the lower portion of the stem; upper stem leaves are reduced in size, resembling bracts. The lower leaves are broadly lanceolate to elliptic, prominently pinnately veined, usually glabrous, lined with seven to 12 teeth, irregular in outline.

There are between three and 14 flowers per stem, at the leaf nodes, midstem and above. Corollas are pale yellow, the throat darker yellow underneath and above (the palate), becoming greenish as it withers. The throat is flecked with red dots.