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Bransford, W.D. and Dolphia
Mimulus guttatus DC.
Yellow monkeyflower, Golden monkeyflower, Seep monkeyflower, Common monkeyflower
Synonyms: Mimulus nasutus
USDA Symbol: MIGU
USDA Native Status: Native to U.S.
An extremely variable, leafy plant ranging from spindly and tiny to large and bushy, with yellow bilaterally symmetrical flowers on slender stalks in upper leaf axils. Seep monkey-flower or golden monkey-flower grows as an annual or perennial and is known for its spikes of snapdragon-like flowers topping leafy, 2-3 ft. stems. The bright-yellow flowers, spotted with purple on the lower lip, appear against soft, light-green, broadly rounded and toothed leaves.
In this large genus of several look-alikes with yellow corollas, Common Monkeyflower is distinguished by the longer upper tooth on the angular calyx.
Plant CharacteristicsDuration: Annual Habit: Herb Leaf:
Green Fruit: Size Class:
Bloom InformationBloom Color: Yellow
Bloom Time: Mar , Apr , May , Jun , Jul , Aug
AK , AZ , CA , CO , CT , DE , ID , MI , MT , ND , NE , NM , NV , NY , OR , PA , SD , UT , WA , WY Canada: BC Native Distribution:
AK & Yukon, s. through w. U.S. to n. Mex.; also n. MI Native Habitat:
Stream banks; wet places to 10,000 ft. USDA Native Status: L48(N), AK(N), CAN(N)
Growing ConditionsWater Use:
High Light Requirement:
Part Shade Soil Moisture:
Moist CaCO3 Tolerance:
Medium Soil Description:
Moist soils. Conditions Comments:
Golden monkey flower is a perennial
in warm zones and a half-hardy annual
in colder places. Light afternoon shade will prolong the bloom period.
BenefitConspicuous Flowers: yes
PropagationDescription: Broadcast seed in spring or fall. One plant spreads widely. Divide dormant rootstocks in fall or winter or when growth begins in spring. Can also be increased by cuttings.
Seed Collection: Not Available
Seed Treatment: Seeds germinate without pretreatment.
Commercially Avail: yes
From the National Suppliers Directory
According to the inventory provided by Associate Suppliers, this plant is available at the following locations:
Oregon Native Plant Nursery
- Woodburn, OR
From the National Organizations Directory
According to the species list provided by Affiliate Organizations, this plant is either on display or available from the following:
Santa Barbara Botanic Garden
- Santa Barbara, CANative Seed Network
- Corvallis, OR
Recommended Species Lists
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Record Modified: 2012-05-02
Research By: TWC Staff