According to observations of naturalists and beekeepers.
Where are you?
The range of eastern redbud extends from New Jersey and Pennsylvania west to southern Michigan and southeastern Nebraska; south to eastern Texas; and east to central Florida. Its natural range appears to exclude the Gulf and Atlantic Coastal Plains. It is extinct from one locality in extreme southern Ontario.
This plant is present in at least 33 states/provinces in this country.
Eastern redbud is a native, deciduous, small tree or shrub. Mature height ranges from 25 to 50 feet (7.6-15.2 m); the smaller figure is probably closer to average. The crown is flat to rounded. The trunk is usually straight, branching about 5 to 9 feet (1.5-2 m) above the ground. The 0.5-inch- (1.2-cm) thick bark becomes scaly on older stems. The root system of eastern redbud is long and coarse with a relatively small number of fine feeder roots near the surface. The fruit is a flat, thin-walled legume (pod) 1.5 to 3.9 inches (4-10 cm) long and 0.32 to 0.72 inches (8-18 mm) broad, with several hard, shiny seeds.
Eastern redbud flowers appear before the leaves from as early as February in the southeastern United States to May. In the southern part of its range, eastern redbud pods are fully grown by the end of May and ripen by September or October. The pods split open in late autumn to winter, sometimes persisting on the tree through the winter.
Acer rubrum (aka: Red maple, Scarlet maple)
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)
Amelanchier arborea (aka: Common serviceberry, Downy serviceberry, Juneberry, Shadbush, Shadblow, Sugarplum)
Prunus armeniaca (aka: Armenian plum, Ansu apricot, Siberian apricot, Tibetan apricot, Apricot tree)
Prunus americana (aka: American plum, Goose plum, River plum, Wild plum)
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)