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Vincetoxicum nigrum, a species in the family Apocynaceae, also known as black swallow-wort, [2] Louise's swallow-wort, [3] or black dog-strangling vine, [4] is a species of plant that is native to Europe and is found primarily in Italy, France, Portugal, and Spain. [5]
Canadian and U.S. folklore holds that the relative amounts of brown and black hair on a larva indicate the severity of the coming winter. It is believed that if a Pyrrharctia isabella 's brown band is wide, winter weather will be mild, and if the brown band is narrow, the winter will be severe.
This butterfly is black with iridescent-blue hindwings. They are found in many different habitats, but are most commonly found in forests. [5] Caterpillars are often black or red, and feed on compatible plants of the genus Aristolochia. They are known for sequestering acids from the plants they feed on in order to defend themselves from ...
As caterpillars, they tend to feed on a wide range of host plants. This includes oak, apple, birch, willow, hackberry, cherry and coniferous trees such as fir and spruce.
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The garden tiger moth or great tiger moth [2] (Arctia caja) is a moth of the family Erebidae. Arctia caja is a northern species found in the US, Canada, and Europe. [3] [4] The moth prefers cold climates with temperate seasonality, as the larvae overwinter, [3] and preferentially chooses host plants that produce pyrrolizidine alkaloids.
The toxins also remain stable when dried and stored, with bulbs remaining toxic for two decades after collection. [31] The seeds and the bulbs are the most toxic parts of the plants. [7] A survivor of poisoning said of the experience, "My mouth got tingly, and later the sensation moved down my throat." [32] Human poisonings are rare.
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