Morrow’s honeysuckle

(Lonicera morrowii)

Conservation Status
Morrow’s honeysuckle
  IUCN Red List

not listed


NNA - Not applicable

SNA - Not applicable


not listed

Weed Status

Restricted Noxious Weed

Morrow’s honeysuckle is listed as an invasive terrestrial plant by the Minnesota Department of Natural Resources.

Wetland Indicator Status
  Great Plains

UPL - Obligate upland


FACU - Facultative upland

  Northcentral & Northeast

FACU - Facultative upland


Morrow’s honeysuckle is an erect, 3 to 10 tall, perennial shrub that rises from shallow roots. It sometimes forms dense thickets.

The branches are straight and hollow. They are light green and covered with soft, fine, short hairs when young. Older branches have shaggy, grayish-brown bark.

The leaves are opposite, untoothed, oval or oblong, and 1 to 2 long. They are bluish-green on the upper surface and downy on the underside.

The flowers occur in pairs arising from leaf axils. They are white but turn yellow with age.

The fruit is a red berry.




3 to 10


Flower Color


White, turning yellow


Similar Species


Aside from northern bush honeysuckle, all honeysuckles native to Minnesota are vine-like, not shrubs, and have twining branches.

Tatarian honeysuckle (Lonicera tatarica) is also a non-native species. It has white or pink flowers that do not turn yellow with age. Its leaves are entirely hairless.


Deciduous woodland borders, savannas, thickets, fence rows, urban vacant lots, railroads, roadsides. Full sun to partial shade.




May to June


Pests and Diseases


Honeysuckle aphid (Hyadaphis tataricae) causes a witches’ broom of stunted leaf and stem growth at the end of shoots.


Defense Mechanisms


Morrow’s honeysuckle plant is thought to be allelopathic, releasing a toxin in the soil that inhibits the growth of other species.


The red dye rhodoxanthin, in the fruit of Morrow’s honeysuckle, is responsible for an unusual orange hue in the wax spots of cedar waxwings in the last 35 years.


Distribution Map



2, 3, 4, 5, 7, 8, 22, 24, 28, 29, 30.




Native to Japan and South Korea. Introduced and naturalized in North America.





  Kingdom Plantae (green algae and land plants)  
  Subkingdom Viridiplantae (green plants)  
  Infrakingdom Streptophyta (land plants and green algae)  
  Superdivision Embryophyta (land plants)  
  Division Tracheophyta (vascular plants)  
  Subdivision Spermatophytina (seed plants)  
  Class Magnoliopsida (flowering plants)  
  Subclass Caryophyllidae  
  Superorder Asteranae  


Dipsacales (honeysuckles, moschatels, and allies)  


Caprifoliaceae (honeysuckle)  
  Subfamily Caprifolioideae  


Lonicera (honeysuckles)  
  Subgenus Lonicera  
  Section Lonicera  

Subordinate Taxa






Lonicera insularis


Common Names


Asian fly honeysuckle

Morrow’s honeysuckle















The release of a chemical toxin by one plant to inhibit the growth or germination of nearby competing plants.



The upper angle where the leaf stalk meets the stem.

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    Morrow’s honeysuckle   Morrow’s honeysuckle  
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    Morrow’s honeysuckle   Morrow’s honeysuckle  
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Location: Cass County

Morrow’s honeysuckle  

Baker Park Reserve

Banning State Park

Bertram Chain of Lakes Regional Park

Blaine Wetland Sanctuary

Blue Devil Valley SNA

Blue Mounds State Park

Brownsville Bluff SNA

Bunker Hills Regional Park

Bur Oak WMA

Camden State Park

Cannon River Trout Lily SNA

Carley State Park

Carver Park Reserve

Cedar Mountain SNA

Chamberlain Woods SNA

Charles A. Lindbergh State Park

Cherry Grove Blind Valley SNA

Chimney Rock SNA

Cleary Lake Regional Park

Cottonwood River Prairie SNA

Crow-Hassan Park Reserve

Crystal Spring SNA

Des Moines River SNA

Dodge Nature Center

Falls Creek SNA

Flandrau State Park

Franconia Bluffs SNA

Frontenac State Park

Gneiss Outcrops SNA

Great River Bluffs State Park

Hardscrabble Woods / MG Tusler Sanctuary

Hastings Sand Coulee SNA

Hole-in-the-Mountain Prairie

Hyland Lake Park Reserve

Iron Horse Prairie SNA

John Peter Hoffman Spring Brook Valley WMA

Kasota Prairie

Keller Regional Park

King’s and Queen’s Bluff SNA

Lake Byllesby Regional Park

Lake Elmo Park Reserve

Lake Louise State Park

Lake Maria State Park

Lebanon Hills Regional Park

Leif Mountain

Minnesota Valley NWR, Wilkie Unit

Minnesota Valley State Recreation Area, Lawrence Unit

Mississippi River County Park

Monson Lake State Park

Murphy-Hanrehan Park Reserve

Myre-Big Island State Park

Nerstrand Big Woods State Park

Northern Tallgrass Prairie NWR, Hoffman Unit

Ordway Prairie

Oronoco Prairie SNA

Oxbow Park & Zollman Zoo

P.N. and G.M. Nelson Wildlife Sanctuary

Paul Bunyan Savanna

Pin Oak Prairie SNA

Pine Bend Bluffs SNA

Prairie Creek WMA, Koester Prairie Unit

Racine Prairie SNA

Rice Lake Savanna SNA

Rice Lake State Park

Ripley Esker SNA

Ritter Farm Park

River Terrace Prairie SNA

Robert Ney Memorial Park Reserve

Rock Ridge Prairie SNA

St. Croix Savanna SNA

Sand Prairie Wildlife Management and Environmental Education Area

Savage Fen SNA

Savanna Portage State Park

Seven Mile Creek County Park

Seven Springs WMA

Sibley State Park

Split Rock Creek State Park

Spring Creek Prairie SNA

Spring Lake Park Reserve

Springbrook Nature Center

Sunfish Lake Park

Swedes Forest SNA

Thompson County Park

Tiedemann WMA

Tribute WMA

Vermillion Highlands Research Recreation and WMA

Whitetail Woods Regional Park

Whitewater State Park

Wild River State Park

William O’Brien State Park

Wood-Rill SNA

Woodbury WMA

Woodland Trails Regional Park

Yellow Bank Hills SNA







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