World of Horticulture - Exam #2 Flashcards

Comprehensive vocabulary flashcards covering plant biology, classification, and landscape uses based on Exam #2 notes.

Fruit

A mature ovary.

Invasive

A plant species that, when introduced to a landscape, grows vigorously and becomes dominant, often displacing native species and disrupting the natural ecosystem.

Espalier

A plant use where plants are grown along flat surfaces or walls.

Berry

The botanical fruit classification for blueberries, grapes, and tomatoes.

Amorphophallus titanium

The corpse flower; it grows $6'$ tall, is maroon flesh-colored, smells like rotten flesh, and generates heat to attract pollinators.

Root hairs

Structures that serve to increase the absorption capacity of water and nutrients.

Leaflets

The individual segments that make up a compound leaf.

Spongy mesophyll

The internal part of leaves comprised of loosely packed cells with air spaces, found on the underside next to the lower epidermal layer.

Perfect flower

A flower that possesses both stamens and pistils.

Pistillate

An imperfect flower that is missing the male flower parts (stamens).

Phoradendron leucarpus

Mistletoe; an example of a parasitic plant with aerial roots.

Leaf epidermis

The structure whose primary role is to control water and gas loss from plant leaves.

Cladophylls

Modified stems that function like leaves, found on plants such as Poet's Laurel and Christmas cacti.

Scarification

The first process used when trying to break temperate seed dormancy on seeds that are 'Double Dormant'.

Guard cells

Specialized epidermal cells that function to open and close the stomata.

Corn silks

The botanical parts of corn-on-the-cob identified as pistils.

Spines

A type of modified leaf.

Nerium oleander

A very poisonous woody plant with a whorled leaf arrangement, often found in coastal areas.

Seed dormancy

A condition where a seed does not germinate even in favorable environmental conditions due to physical or physiological conditions in the seed.

Spider plant

A specific example of a plant that possesses stolons.

Term for eating a ripening ovule

Eating a seed.

Barrier plant

A plant or planting that must have sharp or defensive structures and ideally grows tall enough to block a view.

Rain gardens

Gardens designed to collect, filter, and clean runoff water from parking lots and buildings.

Multiple fruit

A fruit formed by several flowers that fuse during ripening.

Dehiscent

A fruit term that is NOT associated with fleshy fruit types.

Fibrous root system

A shallow root system that helps control soil erosion and captures minerals and pollutants before they leach through the soil.

Topiary

A plant use or function that involves specialized pruning techniques and practices.

Physical features for landscape selection

The five specific features discussed include flowers, fruit, bark, architecture, and buds.

Hesperidium

The botanical fruit classification for oranges, limes, and grapefruits.

Coconut

A botanical example of a drupe.

Blade

The broad, expanded part of a leaf.

Classic flower parts

The four main components of a flower: sepals, petals, pistil, and stamen.

Stipules

Structures on plants that are associated with the leaf.

Fruit layers

The components making up the pericarp: the exocarp, mesocarp, and endocarp.

Screen planting

A planting selected to block undesired views, wind, or noise, characterized by being evergreen, dense, and fast-growing.

Pollination

The process when pollen lands on the stigma and gets stuck there.

Emasculation

The removal of the anthers from a flower.

Self-compatible

Plants that will accept their own pollen.

Irish potatoes

Botanically classified as tubers because they have nodes.

Trichomes

Technical term for specialized plant hairs.

Fertilization

When genetic information from the pollen is transferred into the ovule by the pollen tube and unites with the genetic information in the ovule.

The bud

The plant part you must find first to determine whether a plant has simple or compound leaves.

Oak Alley Plantation

A location in Louisiana famous for a grand allee of Quercus virginiana trees that are over $300+$ years old.

Landscape maintenance requirements

Considerations for plant selection including pruning, watering, pest/disease control, and leaf/fruit/bark litter.

Pollinator rewards

Incentives offered by flowers to attract pollinators, including pollen, nectar, security, and insect mating sites.

Imperfect flower

A flower that is missing either the stamen or the pistil.

Stem

A plant part that functions to support upper portions, transport materials, store sugars, and bear flowers and fruit.

Staminate

An imperfect flower that is missing the female parts (pistils).

Quercus virginiana

The scientific name for the trees found at Oak Alley Plantation.

"Oh Say Can You Seed?"

The title of 'The Cat in the Hat' book read in class.