Objective 3.03
• Discuss floriculture and landscape plants
Taxonomy
• The science of classifying and identifying plants
• Scientific names are used because the same
common name is used for different plants in
different areas of the world.
Karl von Linne
• Swedish botanist that
developed the binomial
system of naming plants
using two Latin words to
indicate the genus and
species.
• Linne changed his name
to the Latin name
Carolus Linneaus.
Scientific Names
• Latin is the language used for scientific
classification.
• The first word is the genus (first letter
capitalized) and the second word is the
species. If there are additional words after
the species, they indicate the variety or
cultivar (variety – var. or cultivated variety
– cv.)
Genus vs. Species
• Plants in the same genus have similar
characteristics.
• Plants in the same species consistently produce
plants of the same type.
Scientific Classification
• The broadest category of scientific classification
is the Kingdom--either plant or animal.
• The broadest category in the plant kingdom is
division or phylum.
Divisions
• The four most important divisions of the plant
kingdom are:
– Thallophytes – algae, fungi, lichens
– Bryophytes – true mosses, liverworts
– Pteriophytes – ferns, horsetails, club mosses
– Spermatophytes – seed-bearing or flowering plants
Spermatophytes
• Contains flowering or seed-bearing plants
• Two subdivisions are:
– Gymnosperms – seeds not in ovary (cones)
– Angiosperms – seeds enclosed in ovary (flowering
plants)
Common Plant Genus
• Pinus-Pine
• Cornus-dogwood
• Acer-Maple
• Rhododendronrhododendron
• Ilex-Holly
• Ficus-fig
• Quercus-oak
Horticulture I Plant ID - Trees
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Acer palmatum
Acer rubrum
Betula nigra
Cercis canadensis
Cornus florida
X Cupressocyparis
leylandii
• Lagerstroemia
indica
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Japanese maple
Red maple
River Birch
Eastern Red Bud
Flowering dogwood
Leyland cypress
• Crape myrtle
Horticulture I Plant ID - Trees
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Liquidambar styraciflua
Magnolia grandiflora
Malus spp.
Pinus strobus
Pinus taeda
Prunus serrulata ‘Kwanzan’
Pyrus calleryana ‘Bradford’
Quercus palustris
Quercus phellos
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Sweetgum
Southern magnolia
Flowering crabapple
Eastern White Pine
Loblolly pine
Japanese flowering cherry
Bradford pear
Pin oak
Willow oak
Horticulture I Plant ID - Shrubs
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Abelia x grandiflora
Aucuba japonica
Berberis thunbergii
Buxus sempervirens
Euonymus alata
Euonymus japonica
Forsythia x intermedia
Ilex x attenuata ‘Fosteri’
Ilex x cornuta ‘Dwarf
Burford Holly’
• Ilex x crenata ‘Helleri Holly’
• Ilex vomitoria ‘Nana’
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Glossy abelia
Japanese aucuba
Japanese barberry
Common boxwood
Winged euonymus
Evergreen euonymus
Border forsythia
Fosteri holly
Dwarf Burford holly
• Helleri holly
• Dwarf Yaupon holly
Horticulture I Plant ID - Shrubs
• Juniperus conferta
• Juniperus horizontalis ‘Plumosa’
or ‘Bar Harbor’ or ‘Wiltonii’
• Shore juniper
• Creeping juniper
• Ligustrum japonicum
• Myrica cerifera
• Nandina domestica
• Japanese privet
• Wax myrtle
• Heavenly bamboo or dwarf
nandina
• Mugo pine
• Catawba hybrid rhododendron
• Azalea
• Pinus mugo var. ‘Mugo’
• Rhododendron catawbiense
• Rhododendron kiusianum
Horticulture I Plant ID - Tropicals
• Araucaria heterophylla
• Asparagus densiflorus
‘Sprengeri’
• Chlorophytum comosum
• Dieffenbachia maculate
• Epipremnum aureum
• Euphorbia pulcherrima
• Ficus benjamina
• Ficus elastic ‘Decora’
• Norfolk island pine
• Sprengeri fern
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Spider plant
Dumbcane
Golden pothos
Poinsettia
Weeping or Benjamin fig
Decora rubber plant
Horticulture I Plant ID - Tropicals
• Maranta leuconeura var.
kerchoviana
• Nephrolepis exaltata
• Philodendron scandens
var. oxycardium
• Saintpaulia ionantha
• Schefflera arboricola
• Spathiphyllum
• Tradescantia zebrina
• Prayer plant
• Boston fern
• Parlor Ivy
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African violet
Dwarf schefflera
Peace Lily
Purple wandering jew
Horticulture I Plant ID - Perennials
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Ajuga reptans
Canna x generalis
Chrysamthemum morifolium
Chrysamthemum x superbum
Hedera helix
Hemerocallis cv.
Hosta spp.
Iris x germanica var. florentina
Liriope muscari
Ophiopogon japonicus
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Ajuga
Canna
Florist chrysamthemum
Shasta Daisy
English Ivy
Daylily
Hosta
Bearded Iris
Liriope green or variegated
Mondo grass
Horticulture I Plant ID - Annuals
• Ageratum mexicanum
• Begonia x semperflorens –
cultorum
• Coleus x hybridus
• Impatiens hybrid
• Pelargonium x hortorum
• Pelargonium peltatum
• Petunia hybrid spp.
• Salvia splendens
• Tagetes spp.
• Viola x wittrockiana
• Ageratum
• Wax begonia
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Coleus
Impatiens
Geranium
Ivy leaf geranium
Petunia
Salvia
African marigold
Pansy