Horticulture Plant ID Study Guide Common and scientific names Horticulture I Instructor: Mrs. Wise Abelia X grandiflora • Common - Glossy abelia – This plant is a Medium evergreen shrub with reddish-green 1 inch long leaves with small clusters of bugle shaped white flowers. Acer palmatum • Common - Japanese Maple Characteristics: *Maple-like leaves deeply lobed, with 5-9 lance-like, ovate lobes, 2-6" wide. Acer rubrum • Red maple – Is a large deciduous tree with red flowers in early spring. It’s leaves are dark green w/ gray color under the leaves. (3-5 lobes & gray bark) Ageratum mexicanum • Common - Ageratum -low growing annuals, ovate leaves, 2 inches long and small clusters of fluffy, lavender-blue, white or pink flowers. Often used for edging. Ajuga reptans • Common - Ajuga - best planted in partial shade or even full shade; fast growing ground cover. Aracaria heterophylla • Common - Norfolk Island Pine - An Interior office plant that usually grows about 4 ft tall and looks similar to a little pine tree. Asparagus densiflorus ‘Sprengeri’ • Common - Sprengeri Fern – prefers part sun to shade. Acuba japonica • Common - Japanese Acuba - Thrives in low light areas Begonia X semperflorens-cultorum • Common - Wax Begonia - drought resistant and sun tolerant. Berberis thumbergii • Common - Japanese Barberry – A medium size deciduous shrub with 1-inch long leaves, small spines, and red berries. Betula nigra • Common- River Birch – A Medium sized deciduous tree with thin brown bark peeling and trunks. Buxus sempervirens • Common - Common boxwood- popular shrub used in many a landscape especially as a hedge, screen or for a topiary. Canna X generalis • Common - Canna - grown best in full sun with moderate water in well-drained rich or sandy soil. Cercis canadensis • Common - Eastern Red Bud/Judas Tree- A Small deciduous tree with heart-shaped leaves and brown bean-type pods in the fall; pink-purple colored flowers. Chlorophytum comosum cv. • Common - Spider Plant – New plants develop from shoot tips – 18” long and ¾” wide leaves – green with yellow line down the middle. Chrysanthemum morifolium • Common - Florist Chrysanthemum - often called mums or chrysanths. Flower bouquets and arrangements. Chrysanthemum X superbum • Common - Shasta Daisy - large white flowers with yellow centers, typical of daisies; excellent perennial. Coleus X hybridus • Coleus Cornus florida • Flowering Dogwood- A small deciduous tree with white flowers called bracts with brown color at the tips, red berries and very crooked growth X Cupressocyparis leylandii • Leyland Cypress- an evergreen, about 5o ft. tall with scale type leaves and short ½ inch cones. Dieffenbachia maculata • Dumbcane – An Interior plant with large variegated green and cream colored large leaves on a thick trunk. Epipremnum aureum cv. • Golden Pothos – Office Plant Euonymus alata • Winged Euonymus – A medium sized deciduous shrub with dark green leaves 1 – 2 long that turn a brilliant red in late fall. Euonymus japonica or ‘Variegata’ • Evergreen Euonymus – Shrub – 1 ½ - 3” long leaves, half as wide as long. Green, green/golden edged, green white edged Euphorbia pulcherrima cv. • Poinsettia – Sold at Christmas, Usually red, originates from Mexico. Colored bracts or leaves Ficus benjamina • Weeping or benjamin fig – drooping branches with shinny pointed leaves and aerial roots on the branches Ficus elastica ‘Decora’ • Decora Rubber Plant Ficus pumila • Creeping Rubber Plant Forsythia X intermedia • Border Forsythia – Large deciduous shrub with many bright yellow flowers in early spring. Hedera helix • English Ivy – Climbing Vine Hemerocallis cv. Day Lily • Full Sun – trumpet type flowers, perrenial. Hosta sp. Hosta- Deciduous ground cover, 3 inch wide by 7 inch long leaves. Leaves are dark green to yellowish white mixed with green. “verigated” Ilex X attenuata ‘Fosteri’ Fosteri Holly – Red Berries • Often used as a corner planting to give height. Ilex cornuta ‘Dwarf Burford’ Dwarf Burford Holly Ilex crenata Helleri Holly ‘Helleri’ • Often used as a border planting evergreen Ilex vomitoria ‘Nana’ • Dwarf Yaupon- Dwarf evergreen shrub, 2ft. high X 2ft. wide with dark green mature leaves about ½ inch to 1 inch long. Stems are gray. Impatiens Impatiens –shade loving colorful annuals Iris X germanica var. florentine • florentine/Bearded Iris Juniperus conferta • Shore Juniper-creeping habit Juniperus horizontalis ‘Plumosa,’ ‘Bar Harbor or ‘Wiltonii’or Blue Rug • Creeping Juniper “Blue Rug”- evergreen ground cover with silvery-blue scale type leaves. Lagerstroemia indica cv. • Crape Myrtle- Smooth tan bark, deciduous tree or shrub, flowers all summer and into early fall. Red, purple, white, pink Ligustrum japonicum cv. • Japanese Privet- large evergreen shrub, dark green leaves that are 3-inch long and 1 ½ inch wide with raised veins underneath. ¼ inch dark purple berries with a hard seed inside. Liquidambar styraciflua • Sweetgum – A deciduous with dark green star shaped leaves and prickly balls. Leaves turn yellow, orange, red and purple in autumn. Liriope muscari • Liriope (Green or Varigated cv.) Magnolia grandiflora • Southern Magnolia – large shinny leaves, 6-9 inch white flowers with cone like pods of bright red seeds. Malus sp. or cv. • Flowering Crabapple – A border tree, medium sized deciduous tree with flowers and 1 – 2 inch diameter fruit. Green, red, or purple leaves in summer. Maranta leuconeura • Prayer Plant Myrica cerifera • Wax Myrtle- large evergreen shrub, yellowish green leaves about 2-3 inches long with serrated margins near the leaf tips, clusters of small waxy-gray berries. Nandina domestica • Heavenly Bamboo – Red foliage in Fall Nephrolepis exaltata cv • Boston Fern Ophiopogon japonicus • Mondo Grass –ground cover Pelargonium X hortorum • Geranium – An indoor/outdoor flowering plant, used in baskets and pots, red, white, pink, multiple colored. Flowers have a long petiole, popular Mother’s Day and easter flower. Number 1 bedding plant Pelargonium peltatum • Ivy Leaf Geranium Philodendron scandens • Parlor Ivy – very low light Pinus mugo var. mugo • Mugo Pine Pinus strobus • Eastern White Pine – Clusters of needle like leaves about 4-inches long. 5 needles per cluster, 4 – 8 inch curving brown cones under the tree. Plectranthus australis • Swedish Ivy Prunus serrulata ‘Kwanzan’ • Japanese Flowering Cherry- Small deciduous tree with pink double flowers. Used as an accent plant. Pyrus calleryana ‘Bradford’ • Bradford Pear- Medium-sized deciduous tree, white flowers in spring, reddish purple leaves in autumn, grow in a symmetrical shape with little or no pruning. Quercus palustris • Pin Oak- Deciduous tree, about 50 ft. tall, leaves have 5 to 7 lobes and 3 or 4 bristle tips on each lobe, has acorns, brilliant red in autumn. Quercus phellow • Willow Oak- Deciduous tree, has small acorns, narrow green leaves, grows about 60 ft. tall. Rhododendron catawbiense • Catawba Hybrid Rhododendron Rhododendron kiusianum or Rhododendron obtusum japonicum • Azalea- Large evergreen, dark green 5-inch long by 2inch wide leaves, shade loving, grows wild in the edge of the forest and by the roadside in NC mountains, many flowers. Saintpaulia ionantha • African Violet Salvia splendens Salvia • Salvia – full sun Schefflera arboricola Dwarf Schefflera • Dwarf Schefflera – indoor, low light Spathiphyllum cvs. Peace Lily • Peace Lily Tagetes erecta • African Marigold Tradescantia zebrina • Purple Wandering Jew Viola X wittrockiana • Pansy – fall and spring flower – cool season – multiple colors