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.
Cercis canadensis (aka: Eastern redbud, Redbud, Cersis Reniformis)
Acer saccharinum (aka: Silver maple, Soft maple)
Ulmus americana (aka: American elm, White elm, Water elm, Soft elm, Florida elm)
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)
Amelanchier arborea (aka: Common serviceberry, Downy serviceberry, Juneberry, Shadbush, Shadblow, Sugarplum)
Malus domestica (aka: Pyrus pumila, Malus pumila, Apple)
Acer saccharum (aka: Sugar maple, Rock maple, Hard maple)
Prunus americana (aka: American plum, Goose plum, River plum, Wild plum)
Populus tremuloides (aka: Quaking aspen, Trembling aspen, Aspen, American aspen, Mountain aspen, Golden aspen, Trembling poplar, White poplar, Popple, Alamo Blanco)
Salix bebbiana (aka: Bebb willow, Beak willow, Beaked willow, Long-beaked willow, Diamond willow, Chaton, Petit Minou, Smooth Bebb willow)
Prunus pumila (aka: Sandcherry, Western sandcherry, Eastern sandcherry, Great Lakes sandcherry)
Liriodendron tulipifera (aka: Tuliptree, Blue-poplar, Tulip-poplar, Yellow-poplar, Yellow wood)
Salix discolor (aka: Pussy willow, American pussy willow, Glaucous willow, Large pussy willow)
Acer rubrum (aka: Red maple, Scarlet maple)
Celtis occidentalis (aka: Common hackberry, Bastard elm, Nettle-tree, Northern hackberry)
Salix lutea (aka: Yellow willow)