: Lonicera insularis
: Morrow's bush honeysuckle
: Common in urban areas and also occurs in rural areas where it was recommended for wildlife until its invasive traits became apparent; forms dense thickets; reduces tree and shrub regeneration, decreases overall plant diversity.
: Deciduous upright to spreading shrub growing up to 1.8 m (6 ft) tall; shallow roots.
: Simple, opposite, elliptical to oblong, 3-6 cm (1-2.4 in) long, gray-green, softly hairy beneath, leaf out early, long growing season.
: Multiple stems; numerous arching branches; older branches often hollow; bark is gray or tan, shaggy.
: Small, white in color, tubular, paired, hairy, fragrant, borne on hairy stalks (0.5-1.5 cm long) arising from the leaf axils; blooms May through June.
Fruit and seeds
: Fruits are red and paired, dispersed by birds.
: Sun and shade tolerant; occurs in a variety of soil and moisture conditions; commonly found along roadsides and on disturbed sites; invades forest, savannas, and prairies.
: By seeds dispersed by birds.
: Natives Canadian fly honeysuckle (L. canadensis
), Twinberry honeysuckle (L. involucrate
), Swamp fly honeysuckle (L. oblongifolia
) and Mountain fly honeysuckle (L. villosa
) are comparatively short and sparse and lack hollow stems on older branches. Non-native privet species (Ligustrum spp.
) have flowers and berries at the ends of their branches, not in the leaf axils.
Monitoring and rapid response
: Monitor sunny, upland sites and open forests in spring as non-native honeysuckle leafs out before natives. Begin control efforts in highest quality areas; hand pull or dig small plants, removing all roots; target large, fruit-bearing plants for control/removal; foliar spray may be effective for large populations where few natives are present; treat cut stumps with herbicide; basal bark treatment is also effective, spray bottom 18 inches of all stems. Where fuel is present, prescribed fire may provide effective control of seedlings in fire adapted communities.
: The Michigan Natural Features Inventory
(MNFI) has partnered with MISIN to provide the information in this fact sheet. Species images and/or information were used with permission from "A Field Identification Guide to Invasive Plants in Michigan's Natural Communities
" and "A Field Guide to Invasive Plants of Aquatic and Wetland Habitats for Michigan