The Genus Mimulus

Chickweed Monkeyflower, Chickweed Monkey-flower, Chickweed Monkey Flower, Wingstem Monkeyflower, Wing-stem Monkey-flower: Mimulus alsinoides - Yellow flower with large red dot in center of lower lip. All petal tips notched. Corolla strongly 2-lipped. 1-8 inches tall.

Short-flowered Monkey Flower: Mimulus breviflorus (Synonyms: Mimulus breviflorus ssp. breviflorus, Mimulus breviflorus ssp. robustus) - Tiny, thin yellow flower. All 5 petals are nearly the same size and shape, so this one looks like it does not have two lips as the other monkey flowers do. Calyx teeth all roughly the same size and shape. Leaves taper gradually to the petiole. Plants 1-5 inches tall.

Cusick's Monkeyflower, Cusick's Monkey-flower: Mimulus cusickii (Synonym: Eunanus cusickii) - ?

Many-flowered Monkey-flower, Purple-stem Monkey Flower, Purple-stemmed Monkeyflower: Mimulus floribundus (Synonyms: Mimulus deltoides, Mimulus geniculatus, Mimulus membranaceus, Mimulus multiflorus, Mimulus pubescens, Mimulus serotinus, Mimulus subulatus, Mimulus trisulcatus) - Tiny yellow flowers, the corollas slightly 2-lipped but the corolla lobes are nearly the same size and shape. Herbage conspicuously glandular-hairy. Leaves abruptly contracted to the petiole.

Common Monkeyflower, Common Monkey Flower, Seep Monkeyflower, Seep Monkey-flower: Mimulus guttatus (Synonyms: Mimulus guttatus var. arvensis, Mimulus guttatus var. decorus, Mimulus guttatus var. depauperatus, Mimulus guttatus var. grandis, Mimulus guttatus var. gracilis, Mimulus guttatus var. guttatus, Mimulus guttatus var. laxus, Mimulus guttatus var. litoralis, Mimulus guttatus var. lyratus, Mimulus guttatus var. microphyllus, Mimulus guttatus var. nasutus, Mimulus guttatus var. puberulus, Mimulus guttatus var. scouleri, Mimulus langsdorfii, Mimulus laxus, Mimulus longulus, Mimulus lyratus, Mimulus microphyllus, Mimulus nasutus) - Yellow flower with small red dots on lower lip. Corolla strongly 2-lipped. Side petals not notched. Upper calyx tooth conspicuously longer than the others. Plants 3 inches to 3 feet tall.

Columbia Monkey Flower, Jungermann's Monkeyflower, Liverwort Monkeyflower, Liverwort Monkey-flower: Mimulus jungermannioides - Yellow flower. Calyx teeth roughly the same size and shape, or the upper tooth slightly longer than the others. Leaves and stems conspicuously sticky-haired or slimy. Leaves palmately veined.

Great Purple Monkeyflower, Lewis' Monkeyflower, Lewis' Monkey Flower, Purple Monkeyflower, Purple Monkey-flower: Mimulus lewisii - Vibrant pink or occasionally albino flowers.

Musk-flowerMusk Monkeyflower, Musk Monkey Flower, Sticky Monkey-flower: Mimulus moschatus (Synonyms: Mimulus moschatus var. longiflorus, Mimulus moschatus var. moschatus, Mimulus moschatus var. sessilifolius) - Flowers yellow. Leaves and stems conspicuously sticky-haired or slimy. Leaves pinnately veined.

Dwarf Monkeyflower, Dwarf Purple Monkeyflower, Dwarf Purple Monkey Flower: Mimulus nanus var. nanus (Synonyms: Mimulus nanus ssp. cascadensis, Mimulus nanus ssp. nanus) - Flowers magenta or reddish-purple. Corollas conspicuously 2-lipped.

Candelabrum Monkeyflower, Pulsifer's Monkeyflower, Pulsifer's Monkey Flower: Mimulus pulsiferae - Flower yellow. Corollas slighty 2-lipped, the corolla lobes largely the same size and shape. Herbage slightly glandular-pubescent. Leaves taper gradually to petiole or sessile.

Washington Monkeyflower: Mimulus washingtonensis (Synonyms: Mimulus patulus ssp. montanus, Mimulus washingtonensis var. ampliatus, Mimulus washingtonensis var. washingtonensis) - Formerly on muddy banks of the Columbia River. Probably extirpated by flooding the pools behind each of the dams.