According to observations of naturalists and beekeepers.
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Devil's walkingstick is found naturally occurring in eastern North America from New York and Pennsylvania south to Florida and west to southwestern Iowa and western Texas. It has escaped from cultivation in New England to southern Ontario, Michigan, Wisconsin, Oregon, Washington, and western Europe.
This plant is present in at least 28 states/provinces in this country.
Devil's walkingstick is a spiny, few-branched, flat-topped tree or shrub 25 to 35 feet (7-10 m) tall. It grows from extensive rhizomes. The stems tend to remain unbranched until the first terminal inflorescences are produced at an average age of 3.5 years. There are abundant prickles on the stems and leaves of first-year ramets.
Devil's walkingstick perennates by rhizomes, producing ramets. Leaves may be killed by frost in winter; severe frost can kill stems back to ground level. Flowers are pollinated by insects, mostly bees. Seeds are dispersed by frugivores, and germination is in the spring following stratification. Artificial propagation can be achieved through root cuttings.
Devil's walkingstick flowers in July and August, setting fruit that ripens from September to October.
Allium schoenoprasum (aka: Chives)
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)
Calendula officinalis (aka: Marigold, Calendula, Pot marigold, English marigold)
Agastache foeniculum (aka: Giant hyssop, Blue giant hyssop, Anise hyssop, Fragrant giant hyssop, Lavender giant hyssop)
Cucumis sativus (aka: Cucumber, Cetriolo, Gherkin)
Chamaenerion angustifolium (aka: Fireweed, Great willowherb, Rosebay willowherb, Saint Anthony's Laurel, French-willow)
Borago officinalis (aka: Borage, Starflower, Common borage, Cool-tankard, Tailwort)
Cucumis melo (aka: Cantaloupe, Rockmelon, Sweet melon, Spanspek, Honeydew melon, Honeymelon, Crenshaw, Casaba)
Citrullus lanatus (aka: Watermelon)
Hyssopus officinalis (aka: Hyssop)
Calluna vulgaris (aka: Heather, Scotch heather, Common heather, Ling, Simply heather)