Introductory Notes on Units and Plants, with Useful References and
Articles on Herbaceous and Woody Plants
Jesse L. Saylor
Some of these articles are required reading for the Hrt 211 and 212 classes; See class syllabus.
Headings like Herbs Intro are introductions to groups of units.
A. Class Information
1. Horticulture 211, Landscape Plants I, Fall 2010, Syllabus
a. Sample Lecture Exam 1, Hrt 211, Fall, Units 51-58
b. Sample Lecture Exam 2, Hrt 211, Fall, Units 1-8
c. Sample Lecture Exam 3, Hrt 211, Fall, Units 1-14 and 59-62
2. Horticulture 212, Landscape Plants II, Fall 2010, Syllabus
a. Sample Lecture Exam 1, Hrt 212, Fall, Units 19-22 and 27-28 and 73
b. Sample Lecture Exam 2, Hrt 212, Fall, Units 15-28
c. Sample Lecture Exam 3, Hrt 212, Fall, Units 65-74 and Twig Id
3. Horticulture 212, Landscape Plants II, Spring 2010, Syllabus
a. Sample Lecture Exam 1, Hrt 212, Spring, Units 65-74
b. Sample Lecture Exam 2, Hrt 212, Spring, Units 15-20
c. Sample Lecture Exam 3, Hrt 212, Spring, Units 15-28
4. Lab Exam Grading Guidelines
B. General Information
1. Abbreviations Used in the SaylorPlants Encyclopedia
2. Use of Asterisk “*” for Required Plants for Lecture Exams
3. Plant Names, Genera, species, and Use of Botanical Latin
4. Cultivars and Ranks of Taxa According to the ICBN and ICNCP
5. Facts Frequently Misunderstood About Poison-Ivy
6. Monoecious and Dioecious Plants
7. Selected Library Call Numbers
C. Poisonous Plants
D. Invasive Plants
1. President Clinton’s Executive order on Invasive Plants
2. Invasive Species, Definition, Clarification ... by Dr. Robert E. Schutzki
E. Hardiness
2. USDA Plant Hardiness Zone Map
F. Descriptive Terms Commonly Used
G. Classification
1. Horticultural Taxonomy and Plant Classification
2. Divisions of Vascular Plants
3. Vascular Plant Diversity, Sizes of Floras
4. Fern Family (Polypodiaceae) Segregates
5. Liliaceae (Lily Family) Segregates
6. Splitting or Lumping of species in a Genus, See Unit 056 Chrysanthemum note
7. Key To Narrowleaved Evergreens
H. Useful References:
1. Reference Lists (Under Construction; Also listed in the Unit notes)
I. Phenology
3. Spring Phenology Data Sheet
J. Herbarium Specimens
1. Herbaria
2. Collecting and Preparing Herbarium Specimens
K. Introduction to Units as Used Here; Weedy Plants
L. Herbaceous and Woody Plants Intro., Herbaceous vs. Woody Plants
M. Bud and Twig Study (used in Hrt 212 lab)
N-V Not Used
W. Hrt 211 Woody Plants (Units 001-014)
Unit 001 Boston Ivy, Elm, Hackberry, Ivy, Virginia Creeper
Unit 002 Basswood, Mulberry, Sour Gum, Sycamore
Unit 003 Corktree, Katsura Tree, Summer Sweet, Walnut
Leguminosae or Fabaceae, Bean Family, Classification (Unit 004)
Unit 004 Hardy Kiwi, Redbud, Yellowwood, Locust, Wisteria
Unit 005 Maples
Unit 006 Alder, Birch, Hornbeam, Hazelnut
Unit 007 Bittersweet, Euonymus, Smoke Tree, Sumac
Unit 008 Pawpaw, Sassafras, Spicebush, Trumpet Vine
Unit 009 Beech, Chestnut, Oak
Unit 010 Ginkgo, Poplar, Stewartia, Willow
Gymnosperms or Conifers Intro., Gymnosperms vs. Angiosperms
(Units 010 Ginkgo, 011-014)
Oldest and Tallest Living Trees
Unit 011 Pines, Spruces
Unit 012 Bald Cypress, Dawn Redwood, Firs, Hemlock, Larch
Unit 013 Arborvitae, Falsecypress, Junipers
Unit 014 Yews
X. Hrt 212 Woody Plants (Units 015-028)
Unit 015 Hollies
Ericaceae or Heath Family, Mycorrhizal Fungi
Unit 016 Azalea, Bearberry, Rhododendron, Sourwood
Monocots vs. Dicots (Unit 017)
Unit 017 Barberry, Boxwood, Pachysandra, Periwinkle, Yucca
Unit 018 Bugleweed, Sweet Gum, Winter Hazel, Witch Hazel
Unit 019 Dogwood, Magnolia, Tulip Tree
Unit 020 Ash, Fringe Tree, Lilac, Privet
Caprifoliaceae or Honeysuckle Family
Unit 021 Coralberry, Elderberry, Honeysuckle, Snowberry
Unit 022 Viburnum, Weigela
Rosaceae or Rose Family (Units 023-026part)
Unit 023 Crabapple, Hawthorn, Apomixis
Unit 024 Bradford Pear, Cherry, Mountain Ash
Unit 025 Cotoneaster, Flowering Quince, Serviceberry
Unit 026 Bayberry, Clematis, Firethorn, Spiraea, Tree Peony
Unit 027 Allspice, Buckeye, Horsechestnut, Rose of Sharon
Unit 028 Gooseberry, Hydrangea, Mock Orange, Silverbell
Y. Hrt 211 Herbaceous Plants (Units 051-062)
Herbs Intro. (Units 051-052)
Unit 051 Herbs 01: Borage, Lavender, Lemon Verbena, Scented Geraniums
Unit 052 Herbs 02: Bee Balm, Basil, Bay Leaves, Catmint, Lamb’s Ears, Sage
Perennials (Units 053-057, 061-062)
Unit 053 Perennials 01 Bleeding Heart, Hardy Geraniums, Pansies, Poppies, Violets
Unit 054 Perennials 02 Bellflower, Cardinal Flower, Hibiscus, Hollyhock, Yarrow
Unit 055 Perennials 03 and Ornamental Vegetables, Baby’s Breath, Balloon Flowers,
Sedum, Spider Flower
Compositae or Aster Family (Units 056-057)
Unit 056 Aster Family 01 Artemesia, Aster, Chrysanthemum, Dusty Millers,
Lavender Cotton
Unit 057 Aster Family 02 Black Eyed Susan, Everlastings, Purple Coneflower,
Strawflowers, Sunflowers
Ornamental Grasses (Unit 058)
Unit 058 Ornamental Grasses, and Grass-Like Plants (Blue Eyed Grass, Rushes, Sedges,
Sweet Flag)
Annuals (Units 059-060)
Unit 059 Annuals 01, Geranium, Impatiens, Pinks, Portulaca, Snapdragon, Solanum
Unit 060 Annuals 02 Amaranth, Celosia, Cosmos, Ornamental Peppers, Marigold,
Zinnia
Unit 061 Perennials 04 Euphorbia, Flax, Phlox, Nasturtium
Rock Gardens, Rockery vs. Rock Garden (Unit 062)
Unit 062 Perennials and Rock Garden Plants, Bergenia, Money Plant, Penstemon,
Saxifrage
Z. Hrt 212 Herbaceous Plants (Units 065-075)
Unit 065 Early Flowering Bulbs Anemone, Crocus, Netted Iris, Snowdrop, Winter
Aconite
Unit 066 Bulbs 02 Daffodils, Fritillaria, Grape Hyacinth
Unit 067 Bulbs 03 Flowering Onions, Iris, Tulips
Unit 068 Summer Flowering Bulbs Canna, Daylily, Hosta, Lily
Wildflowers (Unit 069)
Unit 069 Wildflowers Virginia Bluebells, Jack in the Pulpit, Milkweed, Trillium,
Trout Lily
Ferns (Unit 070)
Unit 070 Ferns Horsetails, Water Clover
Aquatic, Bog, and Carnivorous Plants
Unit 071 Aquatic, Bog, and Carnivorous Plants
Herbaceous Vines , Hallucinogenic Plants (Unit 072)
Unit 072 Herbaceous Vines and Hallucinogenic Plants Fleeceflower, HyacinthBean,
Morning Glory, Sweet Pea
Ground Covers (Unit 073)
Unit 073 Herbaceous Ground Covers Wild Ginger, Lamium, Loosestrife, Goutweed
Unit 074 Perennials Columbine, Lupine, Peony, Primrose
Unit 075 Indoor Plants, Succulents, and Orchids (See Woody Unit 17 for Agavaceae,
Genus Yucca)
