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Scarlet Monkeyflower

Erythranthe cardinalis

The scarlet monkeyflower is a spreading perennial herb most noticeable when in bloom. The fiery red-orange flowers have a deep funnel, apparently made of fused petals, the lower lip of which curls out around the funnel’s edge. The long, pollen-bearing stamens extend above the upper lip. The flowers, about 2 inches long, are born high above the downy, toothed leaves on long, sticky haired stems. The plant is composed of many mounding clusters of stems, reaching 2-3 ft when fully grown.



Basic Information

  • Member of Phrymaceae family

  • Close relative to the Yellow Monkeyflower, Erythranthe guttata

  • Occasional populations of yellow-flowered Erythranthe cardinalis (which lack anthocyanin pigments in their petals) are found in the wild

Habitat

  • Native to the West Coast, Southwestern United States and Baja California

  • Found primarily in moist, low-elevation areas, such as along stream banks and wetlands


Ecological Role

  • Blooms are a favorite of hummingbirds


Reproduction

  • Long bloom period, flowering continuously from spring to fall

  • The scarlet monkeyflower’s blooms and large nectar load attract hummingbirds

  • The hummingbirds' foreheads transfer the pollen between flowers


Alternative Names

  • Cardinal Monkey Flower, Crimson Monkeyflower

  • The scientific name is often interchangeable with Mimulus cardinalis


Historical Uses

  • The Karok used an infusion of the plant to wash newborn babies

  • The Kawaiisu consumed the tender stalks raw


Additional Information

  • Commonly cultivated for horticulture

  • In the area where it overlaps with its sister species, Erythranthe lewisii, reproductive isolation is maintained almost exclusively through pollinator preference

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