toxicity 2

Question 1

juglans Nigra (black Walnut)

Answer 1

Black walnuts found inside the hulls are edible after the green hull softens.
Black walnuts were eaten by Native Americans. They have a different taste than
the English walnuts we are used to eating. The wood is used for fine furniture

Question 2

Liquidambar styraciflua (sweet gum)

Answer 2

Component of plywood, also used in furniture, crates and barrels
The hardened gum has been used by Native Americans and others as a chewing gum.
The sap is known as storax and was used by native Americans to treat coughs and wounds.
Antimicrobial and antifungal properties associated with storax that are now being studied

Question 3

liriodendron tulipifera (Tulip poplar)

Answer 3

Native Americans and early settlers made canoes from the wood.
Dry fruits are food for squirrels.

Question 4

cryptomeria japonica (japanese cedar)

Answer 4

It is the national tree of Japan and is used to make furniture. It was used to make ships, buckets,
and wagons in ancient Japan

Question 5

ginkgo biloba (ginkgo

Answer 5

Leaf extracts may help treat individuals with dementia. Portions of the seeds are used in Asian
cooking but contain a neurotoxin known as ginkgotoxin

Question 6

Ulmus Pumila(Siberian elm)

Answer 6

Sometimes planted instead of native elms because it is resistant to Dutch elm disease and it has
been used to breed resistance into elm hybrids. It can become invasive.
Immature fruits have been made into sauces and wines