Final Flashcards
The heath family is
Ericaceae
Ailanthus altissima
Tree of Heaven
Invasive species from China. Planted to reclaim degraded landscapes but pushes out native species. Difficult to eradicate and very widespread.
Rules governing authority citations
Abbreviated if longer than one syllable
Never underlined or italicized
Refers to person who named the plant, not who discovered the plant
Sapindus drummondi
Western soapberry
Fruits used for soap substitute for washing clothes
Used for making baskets
How does one become the authority on a plant name?
You must have validly and effectively published the plant name
Which two Betulaceae species are natural sources of wintergreen flavoring
Black and Yellow birch
These 2 species are an important timber crop in the Lake States
P. tremuloides and P. grandidentata
Rhamnus purshiana
cascara buckthorn
the plant was christened (cascara sagrada) or sacred bark
This member of the Fabaceae family has simple leaves
C. canadensis
Persimmon is a member of this family
Ebenaceae
Sassafras
Original source of root beer flavor
Polymorphic Leaves
Red Oaks
Leaf lobes pointed, bristle tipped Acorns mature in two years Inner acorn wall pubescent Wood lacking tyloses Seed bitter
This genus has flattened petioles
Populus
Krugiodendron ferreum
leadwood
found in southern Florida
Juglandaceae
Nut Comparisons
Juglans-
Carya-
Nut corrugated, Nut smooth
Most Rosaceae have perfect flowers, meaning they are ________.
synoecious
Northern wetland ash species
Black Ash
Sacred to Native Americans
Basket weaving and crafts
Range of Boxelder
Stream and riverbanks, floodplains, swamp margins, and moist upland slopes.
Full scientific name is composed of
Generic name
Specific epithet
Authority
Tilia Americana wood is commonly used for
window blinds and carving
Pecan Hickories
Mostly > 7 leaflets Winged Fruit (ridges on husk) Valvate bud (meeting at the edges (bud scales) not overlapping)
White Oaks
Leaf lobes rounded, lacking bristle tips Acorns mature in one year Inner acorn wall glabrous Wood with tyloses Seed sweet
True Hickories
Mostly 7 leaflets or <
Unwinged fruit
Imbricate (overlapping bud)
The two most important families for human food production
Rosaceae and Fabaceae
This is the largest southern red oak species
Q. shumardii
Ilex opaca
American Holly, Commonly used for winter holiday decorations
Bee gums are
bee hives made from hollow logs
American basswood buds are
pillow shaped and reddish
Ilex mucronatus
Genus formerly Nemopanthus
Mountain Holly
Rules governing specific epithets (species)
Always in Latin Should not be capitalized Underlined or italicized Used once per genus May be descriptive or commemorative
The most shade tolerant Betulaceae species listed below is
Betula alleghaniensis
Rules governing generic (genus) names
Always in Latin Singular Always capitalized Underlined or italicized Used once per kingdom abbreviated if used frequently
Ulmus rubra
Red or Slippery Elm
Bark is a thirst quencher
Major problem for ash species
Emerald Ash Borer (EAB)
Sourwood is so named because
chewed leaves have a sour taste
Synoecious
Flowers on a plant are all perfect
Varieties are indicated with a ______
VAR
Monoecious
Unisexual flowers on each plant
Corn is a monoecious plant
Most trees are monoecious
The most widely distributed tree in North America is
Quaking Aspen
Range of Northern Catalpa
Alluvial forests, base of bluffs, and riverbanks
Juglandaceae
Husk Comparisons
Juglans-
Carya-
Indehiscent husks, Husk dehiscent
Range of Silver Maple
Damp bottomlands, floodplains, swamps, and moist mountain coves
Which Fabaceae species has poisonous seeds and pod pulp
G. dioicus
Choose the most shade tolerant species
Flowering dogwood
Salix nigra is an important lumber species in
Southeastern US
This species produce cyanide-related compounds when leaves wilt, which can make livestock sick.
Prunus serotina
Dioecious
One sex per plant—its either male or female—not both.
You need two separate trees to reproduce
White ash is ________ in shade tolerance.
intermediate
Strong, moderately dense, flexible
Used for oars and other sports equipment
Common names should be _________ or spelled as one word when they imply that the species belongs to a given genus falsely.
hyphenated
Aesculus genus
Opposite leaf arrangement
Leaves are palmately compound, with 5-7 serrate leaflets
Rhamnus purshiana
cascara buckthorn, bearberry, bitter-bark, chittimwood
First question
cross timbers
One of the most abundant and widespread trees in Eastern NA.
Red Maple
Paulownia tomentosa
Princess Tree, Royal paulownia, Empress-tree
Introduced from China in 1834
Planted for mine spoil reclamation
Cultural value in Japan and Korea
Hope chest is built when a daughter is born
Old Ironsides, USS Constitution
Hull was built with Live Oak (q. virginiana)
Black locust is used for
fence posts and fuel wood
There are __ species of maple in the U.S. Only __ are of any real importance.
Pollen is highly allergenic, ______ is the worst.
14, 7, Boxelder
Scrophulariaceae
Figwort family comprised of herbs, shrubs, and a few trees.
Medicines, ornamental herbs
Catalpa speciosa
Northern Catalpa
Wood is moderately soft
Resistant to decay
Fence posts
Unusual whorled leaf attachment
Hybrids are indicated by using and ____ in the scientific name.
“X”
Cultivars are enclosed in ______ quotation marks and are _______. Cultivars are bred by people, not found in nature.
Single, capitalized
Witch hazel
Prized by “water diviners”
Black Cherry is a major commercial species in which states
Pennsylvania and New York
Oleaceae
Olea europaea produces the _____ and _____ oil of commerce.
olive, olive
Probably the heaviest (specific gravity 1.3) wood grown in the US is from _________.
leadwood
Rhus is a source of _______
honey
In Kansas, sugar maples are found on _____ facing slopes near highway 69.
north
The easiest way to determine the genus of members of the Betulaceae family
look at the fruit structure
