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Dr. Deb recalled one industrious suitor in the lab who, with no pignut available, gnawed his way through a sheet of tissue paper and stuffed his noggin through the gap.

In summer, neighborhoods flutter with honey locust, silver linden, sugar maple, red oak, white ash and pignut hickory, all ready to ignite in fall with incendiary color.

But there are 10 trees on the conservancy’s list that will soon be planted on Lookout Hill, including three types of hickories with irresistible names — the pignut hickory, the shagbark hickory and the mockernut hickory.

Plant species Carswell said he’s concerned about include the pignut hickory.

The pignut deserves the better name, "smooth hickory," a more ingratiating introduction to strangers.