tioxic 3

Question 1

metasequoia glyptostroboides (dawn redwood)

Answer 1

It is a deciduous gymnosperm native to China and was only known from fossils and thought to be
extinct until it was rediscovered growing in an area of China in the 1940’s. It is grown as an
ornamental

Question 2

pseudotsuga menziesii (Douglas Fir)

Answer 2

It is an important timber tree used for building houses, for railroad ties, fences, and furniture.

Question 3

taxodium distichum (bald Cypress)

Answer 3

It is a deciduous gymnosperm that is the state tree of Louisiana where it is in its native southern
range. It is used for lumber, shingles, and for furniture

Question 4

Thuja Occidentails (White Cedar,Arbor vitae)

Answer 4

Arbor vitae means “tree of life”. It has been used for fences, lumber, shingles. There have been
many different homeopathic, medicinal uses of this plant. An oil from the plant has been used for
cleaners, insecticides and soaps. The leaves are a source of vitamin C and have been used to treat
scurvy. It is the source of the neurotoxin thujone

Question 5

tsuga Canadensis (eastern hemlock)

Answer 5

Eastern hemlock is the state tree of Pennsylvania and is being threatened by the hemlock woolly
adelgid. The bark has been used for tannin to tan leather, and the wood is used for framing,
roofing, boxes, crates, and pulp. Native Americans and settlers made a tea from the leaves which
is high in vitamin C