According to observations of naturalists and beekeepers.
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Tuliptree occurs in eastern North America. The species ranges from Vermont, west through southern Ontario and Michigan, south to Louisiana, and east to northern Florida.
This plant is present in at least 30 states/provinces in this country.
Tuliptree is a tall, deciduous, long-lived, broadleaf tree. The leaves are alternate with a distinctive tuliplike shape. In forest stands, tuliptree is one of the straightest and tallest trees, with approximately 66 percent of the bole free of lateral branches. It can reach heights of 200 feet (61 m) and a dbh greater than 10 feet (3 m). The flowers are tuliplike in size and shape. The fruit is a conelike structure consisting of many winged samaras on a central stalk.
Yellow poplar flowers from April to June; seeds mature from August to late October.
Acer saccharinum (aka: Silver maple, Soft 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)
Prunus americana (aka: American plum, Goose plum, River plum, Wild plum)
Prunus serotina (aka: Black cherry, Wild black cherry, Rum cherry, Mountain black cherry, Wild cherry)
Salix discolor (aka: Pussy willow, American pussy willow, Glaucous willow, Large pussy willow)
Acer negundo (aka: Boxelder, Western boxelder, Arizona boxelder, California boxelder, Texas boxelder, Interior boxelder, Violet boxelder)
Pyrus communis (aka: European pear, Common pear)
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)
Acer saccharum (aka: Sugar maple, Rock maple, Hard maple)
Celtis laevigata (aka: Hackberry, Sugarberry, Lowland hackberry, Sugar hackberry, Arizona sugarberry, Netleaf hackberry, Small's hackberry, Southern hackberry, Texas sugarberry)
Celtis occidentalis (aka: Common hackberry, Bastard elm, Nettle-tree, Northern hackberry)
Malus domestica (aka: Pyrus pumila, Malus pumila, Apple)
Liriodendron tulipifera (aka: Tuliptree, Blue-poplar, Tulip-poplar, Yellow-poplar, Yellow wood)
Ilex opaca (aka: American holly, Dune holly, Hummock holly, Scrub holly)