According to observations of naturalists and beekeepers.
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NECTAR PRODUCTION:
20 - 40 kilograms per ha
SOURCE FOR HONEY BEES:
Minor
The flowers are cross-pollinated by honeybees, bumblebees, long-horned bees (Synhalonia spp.), and other long-tongued bees. Other floral visitors include small short-tonged bees (Andrenid, Halictid), butterflies, and skippers. These insects obtain nectar from the flowers, although some of the bees may collect pollen.
This plant is present in at least 24 states/provinces in this country.
This small tree is 15-25' tall at maturity. It has a short trunk that is often crooked and a broad irregular crown. The trunk bark is variable, but it is often reddish gray-brown, rough-textured, and covered with longitudinal scales that often curve. Sometimes the trunk bark is flatter and less developed. The bark of branches is reddish-brown or dark reddish-gray and smooth. Along the larger branches, thorny side branches often develop. The blades of the alternate leaves are 1½-3" long and ¾-2" across; they are more or less ovate, coarsely toothed, and often shallowly cleft. The upper blade surface is yellowish-green to bright green and hairless, while the lower surface is pale green and hairless (or nearly so, except for very young leaves). The slender petioles are ¾-2" long, light green to bright red (often the latter), and hairless to nearly hairless.
Cymes of 2-6 flowers are produced from short spur-like branches. Individual flowers are 1-1¾" across, consisting of 5 pink petals (often becoming white with age), a green to reddish-green calyx with 5 narrowly triangular lobes, a pistil with 5 styles, and 10-20 stamens. The exterior surface of the calyx (facing away from the petals) is smooth and hairless, while its interior surface is densely covered with appressed silky hairs. The slender pedicels are 1-2" long and hairless to nearly hairless.
The blooming period occurs from mid- to late spring and lasts about 2 weeks. The flowers have a pleasant fragrance. Fertile flowers are replaced by a globoid fruit (pome) that is ¾-1½" across. The fragrant fruit is initially green, but it later becomes yellowish-green or yellow at maturity; its surface is smooth and waxy. The hard flesh of the mature fruit is slightly juicy and sour-tasting; it contains several seeds toward the center of its interior. The root system is woody and branching, sometimesTrunk Bark producing underground runners that form clonal offsets.
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)
Acer saccharinum (aka: Silver maple, Soft maple)
Acer negundo (aka: Boxelder, Western boxelder, Arizona boxelder, California boxelder, Texas boxelder, Interior boxelder, Violet boxelder)
Pyrus communis (aka: European pear, Common pear)
Salix nigra (aka: Black willow, Swamp willow, Southwestern black willow, Gulf black willow, Scythe-leaved willow)
Salix lucida (aka: Shining willow, Greenleaf willow, Tail-leaf willow, Whiplash willow, Pacific willow, Lance-leaf willow, Longleaf willow, Red willow, Western shining willow)
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)
Prunus cerasus (aka: Sour cherry, Tart cherry, Dwarf cherry, Montmorency cherry)
Acer saccharum (aka: Sugar maple, Rock maple, Hard maple)
Populus tremuloides (aka: Quaking aspen, Trembling aspen, Aspen, American aspen, Mountain aspen, Golden aspen, Trembling poplar, White poplar, Popple, Alamo Blanco)
Prunus pumila (aka: Sandcherry, Western sandcherry, Eastern sandcherry, Great Lakes sandcherry)
Liriodendron tulipifera (aka: Tuliptree, Blue-poplar, Tulip-poplar, Yellow-poplar, Yellow wood)
Salix bebbiana (aka: Bebb willow, Beak willow, Beaked willow, Long-beaked willow, Diamond willow, Chaton, Petit Minou, Smooth Bebb willow)
Malus domestica (aka: Pyrus pumila, Malus pumila, Apple)
Acer platanoides (aka: Norway maple)
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)
Celtis occidentalis (aka: Common hackberry, Bastard elm, Nettle-tree, Northern hackberry)
Ilex opaca (aka: American holly, Dune holly, Hummock holly, Scrub holly)
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)
Catalpa speciosa (aka: Northern catalpa, Hardy catalpa, Western catalpa, Cigar tree, Catawba-tree, Bois chavanon)
Rubus canadensis (aka: Smooth blackberry, Thornless blackberry, Canadian blackberry, Smooth highbush blackberry)
Rubus idaeus (aka: Raspberry, Black-haired red raspberry, Brilliant red raspberry, American red raspberry, Red raspberry, Smoothleaf red raspberry, Wild raspberry, Wild red raspberry, Grayleaf raspberry)
Acer spicatum (aka: Mountain maple, Low maple, Moose maple, Water maple, Plaine batarde, Fouereux)
Rhamnus cathartica (aka: Common buckthorn, European buckthorn, Dahurian buckthorn)
Acer pensylvanicum (aka: Striped maple, Moosewood, Goosefoot maple, Whistlewood)
Malus ioensis (aka: Bechel crab, Crab apple, Iowa crab, Iowa crab apple, Prairie crab, Prairie crab apple)
Astragalus (aka: Milkvetch, Locoweed, Goat's-thorn)
Ajuga reptans (aka: Bugle, Blue bugle, Bugleherb, Bugleweed, Carpetweed, Carpet bugleweed, Common bugle, St. Lawrence plant)
Rhus glabra (aka: Smooth sumac, Common sumac, Rocky Mountain sumac, Red sumac, Western sumac, White sumac)
Allium schoenoprasum (aka: Chives)
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)
Aronia melanocarpa (aka: Black chokeberry, Rowan, Mountain Ash, Sorbus)
Rubus phoenicolasius (aka: Wine raspberry, Japanese wineberry, Wineberry)
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)
