with purple (5-15 dm. high)
=Poison Hemlock, Conium maculatum.=

32b. Stems not spotted with purple (2-5 dm. high)
=Caraway, Carum carvi.=

CORNACEAE, the Dogwood Family

Trees, shrubs, or herbs, with alternate leaves and small flowers in
rather crowded rounded or flattened clusters; sepals 4, minute; petals
and stamens each 4; ovary inferior, ripening into a berry. In one genus
the flowers are minute and greenish, with 5 sepals and petals minute or
none.

1a. Leaves alternate --2.

1b. Leaves opposite --3.

2a. Flowers white, conspicuous, in flattened clusters (shrubs 2-4
m. high; flowers in late spring)
=Dogwood, Cornus alternifolia.=

2b. Flowers greenish, inconspicuous, in small axillary clusters
(tree; flowers in spring) =Sour Gum, Nyssa sylvatica.=

3a. Flower clusters small and dense, surrounded by a showy involucre of
4 bracts, resembling a corolla of 4 petals --4.

3b. Flowers in open flattened clusters, without petal-like involucre
(shrubs 1-4 m. high; late spring) --5.

4a. Herbaceous, 3 dm. high or less (flowers in late spring)
=Dwarf Dogwood, Cornus canadensis.=

4b. Tall shrub or tree (flowers in late spring)
=Flowering Dogwood, Cornus florida.=

5a. Leaves distinctly pubescent beneath with woolly or spreading hairs
--6.

5b. Leaves smooth beneath, or pubescent with short appressed hairs --9.

6a. Leaves rough above; fruit white
=Dogwood, Cornus asperifolia.=

6b. Leaves smooth or finely soft-hairy above --7.

7a. Leaves at least twice as long as wide; branches brownish or purplish
--8.

7b. Leaves less than twice as long as wide; branches greenish; fruit
blue =Dogwood, Cornus circinata.=

8a. Branches purplish; fruit blue =Dogwood, Cornus amomum.=

8b. Branches brownish; fruit white =Dogwood, Cornus baileyi.=

9a. Branches bright red or reddish-purple
=Dogwood, Cornus stolonifera.=

9b. Branches grayish =Dogwood, Cornus paniculata.=

ERICACEAE, the Heath Family

Herbs or shrubs, frequently with evergreen leaves; sepals 4-5; co