According to observations of naturalists and beekeepers.
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Malus angustifolia or southern crabapple is a species of crabapple native to the eastern and south-central United States from Florida west to eastern Texas and north to New Jersey, Pennsylvania, Illinois, and Missouri.
This plant is present in at least 21 states/provinces in this country.
Malus angustifolia is a tree sometimes attaining a height of 10 meters (33 feet). The trunk can have a diameter of up to 25 cm (10 inches). Flowers are pink, with a pleasant scent. The fruits are up to 3 cm (1.2 inches) in diameter and have an aromatic scent and a pear-like shape. They are astringent and acidic and not palatable when raw, but can be used to make jellies, jams, and food preserves. They are also eaten by various wildlife.
Flowering: February–May; fruiting August–September.
Brassica napus (aka: Rapeseed)
Sinapis arvensis (aka: Charlock mustard, California rape, Charlock, Corn mustard, Canola, Kaber mustard, Rapeseed mustard)
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)
Borago officinalis (aka: Borage, Starflower, Common borage, Cool-tankard, Tailwort)
Citrullus lanatus (aka: Watermelon)
Cirsium arvense (aka: Creeping Thistle, Canada thistle, Field thistle, California thistle, Lettuce from hell thistle, Corn thistle, Cursed thistle, Green thistle, Hard thistle, Perennial thistle, Prickly thistle, Small-flowered thistle, Way thistle, Stinger-needles)
Asteraceae (aka: Aster, Daisy, Composite)