According to observations of naturalists and beekeepers.
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Common hackberry is most common in the midwestern United States. It is sparingly distributed in Manitoba, Ontario, and Quebec, rare along the Atlantic coast from Massachusetts to Virginia, occasional in Tennessee, North Carolina, and Georgia, and restricted to Hemphill County in the Texas panhandle.
Common hackberry tolerates a range of climatic and soil conditions. Although most common along rivers and streams, it also occurs in open woodlands, rocky hillsides, limestone outcrops, and sand barrens throughout its North American range.
This plant is present in at least 45 states/provinces in this country.
Common hackberry typically grows as a broad tree measuring around 50 feet (15 m) tall and 20 inches (50 cm) in diameter; however, size and growth form can vary with site conditions. Common hackberry trees may reach 110 feet (35 m) tall and 6 feet (1.8 m) in diameter. Common hackberry bark is thick, deeply furrowed, and develops warty cork projections with age.
Common hackberry is symmetrical and open-branched, with larger branches 26 to 33 feet (8-10 m) above ground. The crown is ascending with spreading branches, which droop at the tips. Common hackberry is sensitive to mites (Eriophyes spp.), which cause witches' brooms or thick clusters of branches and twigs. It produces simple leaves, which are arranged alternately, measure 1.2 to 6.7 inches (3-17 cm) long, and are about twice as long as they are wide. Leaves have serrated margins with 10 to 40 teeth per side, at least on the upper half. Leaves are triangular with uneven sides, long tapered tips, and 3 prominent veins from the same basal point. Common hackberry trees produce both male and female flowers. Pistillate and staminate flowers are usually solitary but also occur in clusters of up to 3. Pistillate flowers are borne in the axils of new leaves, and staminate flowers are borne at the ends of new branches. Common hackberry produces solitary, single-seeded drupes that are 8 to 11 mm in diameter.
Common hackberry produces flowers at the same time as leaves, which is typically in April or May. Flowers are typical in early April in the southern part of the common hackberry's range and in late May in the northern part of its range. Fruits are often ripe in September or October but remain on the tree until winter or spring.
Cercis canadensis (aka: Eastern redbud, Redbud, Cersis Reniformis)
Malus angustifolia (aka: American crab apple, Buncombe crab apple, Crabtree, Narrowleaf crab, Narrowleaf crab apple, Southern crab, Southern crab apple)
Aronia arbutifolia (aka: Red chokeberry)
Salix discolor (aka: Pussy willow, American pussy willow, Glaucous willow, Large pussy willow)
Pyrus communis (aka: European pear, Common pear)
Celtis laevigata (aka: Hackberry, Sugarberry, Lowland hackberry, Sugar hackberry, Arizona sugarberry, Netleaf hackberry, Small's hackberry, Southern hackberry, Texas sugarberry)
Acer negundo (aka: Boxelder, Western boxelder, Arizona boxelder, California boxelder, Texas boxelder, Interior boxelder, Violet boxelder)
Vaccinium corymbosum (aka: Highbush blueberry, High-bush blueberry, Northern highbush blueberry, Tall blueberry, Rabbiteye blueberry, Blue huckleberry, Tall huckleberry, Swamp huckleberry, High blueberry, Swamp blueberry)
Malus domestica (aka: Pyrus pumila, Malus pumila, Apple)
Prunus cerasus (aka: Sour cherry, Tart cherry, Dwarf cherry, Montmorency cherry)
Malus coronaria (aka: Sweet crab apple, Garland crab, Alabama crab, Allegheny crab, American crab, Baltimore crab apple, Buncombe crab, Dawson crab, Dunbar crab, Fragrant crab, Garland tree, Lanceleaf crab apple, Missouri crab, Sweet-scented crab, Sweet wild crab, Wild crab, Wild sweet crab, Wild Crab Apple)
Populus tremuloides (aka: Quaking aspen, Trembling aspen, Aspen, American aspen, Mountain aspen, Golden aspen, Trembling poplar, White poplar, Popple, Alamo Blanco)
Liriodendron tulipifera (aka: Tuliptree, Blue-poplar, Tulip-poplar, Yellow-poplar, Yellow wood)
Acer saccharum (aka: Sugar maple, Rock maple, Hard maple)
Celtis occidentalis (aka: Common hackberry, Bastard elm, Nettle-tree, Northern hackberry)
Ilex opaca (aka: American holly, Dune holly, Hummock holly, Scrub holly)
Acer platanoides (aka: Norway maple)
Acer pensylvanicum (aka: Striped maple, Moosewood, Goosefoot maple, Whistlewood)
Acer spicatum (aka: Mountain maple, Low maple, Moose maple, Water maple, Plaine batarde, Fouereux)
Robinia pseudoacacia (aka: Black locust, False acacia, Yellow locust, White locust, Green locust, Post locust, Falsa acacia, Robinia)
Viburnum prunifolium (aka: Blackhaw, Black haw, Blackhaw viburnum, Sweet haw, Stag bush, Smooth Blackhaw Viburnum, Stagbush, Viburnum bushii)
Rhamnus cathartica (aka: Common buckthorn, European buckthorn, Dahurian buckthorn)
Catalpa speciosa (aka: Northern catalpa, Hardy catalpa, Western catalpa, Cigar tree, Catawba-tree, Bois chavanon)
Vaccinium angustifolium (aka: Lowbush blueberry, Early low-bush blueberry, Low sweet blueberry)
Rubus canadensis (aka: Smooth blackberry, Thornless blackberry, Canadian blackberry, Smooth highbush blackberry)
Rubus laciniatus (aka: Cutleaf blackberry, Evergreen blackberry, Slashed blackberry)
Ajuga reptans (aka: Bugle, Blue bugle, Bugleherb, Bugleweed, Carpetweed, Carpet bugleweed, Common bugle, St. Lawrence plant)
Astragalus (aka: Milkvetch, Locoweed, Goat's-thorn)
Rhus glabra (aka: Smooth sumac, Common sumac, Rocky Mountain sumac, Red sumac, Western sumac, White sumac)
Brassica napus (aka: Rapeseed)
Sinapis arvensis (aka: Charlock mustard, California rape, Charlock, Corn mustard, Canola, Kaber mustard, Rapeseed mustard)
Gleditsia triacanthos (aka: Honey locust, Honey shucks locust, Common honeylocust, Sweet bean locust)
Rubus phoenicolasius (aka: Wine raspberry, Japanese wineberry, Wineberry)
Aronia melanocarpa (aka: Black chokeberry, Rowan, Mountain Ash, Sorbus)
Prunus serotina (aka: Black cherry, Wild black cherry, Rum cherry, Mountain black cherry, Wild cherry)
Prunus pensylvanica (aka: Pin cherry, Fire cherry, Bird cherry)
Asclepias tuberosa (aka: Butterflyweed, Butterfly Milkweed, Orange Milkweed, Pleurisy Root, Chigger Flower, Canada root, Fluxroot, Indian paintbrush, Indian posy, Orange root, Orange Swallow-wort, Tuber root, Yellow milkweed, White-root, Windroot, Butterfly love)
Tilia americana (aka: American basswood, Basswood, Linden)