Stems
Leaves
Flowers
Roots
General Horticulture
100
These are small breathing pores found all over the stem.
What are lenticels?
100
This part of the leaf is where it attaches to the stem of the plant, this part is often referred to as the leaf stem itself.
What is the petiole?
100
The female parts of the flower containing the stigma, the style, ovules and ovaries.
What is the pistil?
100
These tiny fibers at the ends of the root system absorb water and minerals directly from the soil.
What are root hairs?
100
This part of the fruit tree branch is vital to fruit production and must never be cut off. Everywhere one of these grows, fruit will follow.
What is a spur?
200
This is the tip of the stem and all new growth will sprout from this point.
What is the terminal bud?
200
This part of the leaf is a thick vein running up the middle of the blade itself.
What is the midrib?
200
The male parts of the flower containing the filament, the anther, and pollen.
What is the stamen?
200
This type of root system is the easiest to divide when transplanting stock.
What are fibrous roots?
200
Poinsettias do not have traditional flower petals, but unique foliage that turns bright red, pink, or white. This is the name for this unique foliage.
What are bracts?
300
This is the mark left from the fallen foliage, it is also marks where a terminal bud once existed.
What is the leaf scar or bud scale scar?
300
The outer edge of the leaf, often serrated, smooth, or lobed.
What is the margin?
300
This part of the flower is often colorful and fragrant and used to attract insects.
What are the petals?
300
This type of root system develops during careful propagation and refers to the location of the roots, which are often developing somewhere other than the base of the plant.
What is an adventituous root system?
300
These numbers on a fertilizer bag tell the grower how much of these three nutrients are in the mix. The numbers 10-10-10 refer to the exact ratio of these nutrients.
What is Nitrogen, Phosphorus, and Potassium (N,P,K)?
400
This area shows one year of growth and has two ends.On one end you will see and leaf scar, and on the other a bud-scale scar or another leaf scar, both of which are referred to as nodes.
What is an internode?
400
Leaves are green in color. This green color comes from this chemical housed within the leaf structure.
What is chlorophyll?
400
This process is simply defined as transfer of pollen from the anther to the stigma. This is often done in nature by bees and other insects, the wind, and large animals who brush against the flowers.
What is pollination?
400
This part of the root system is the largest, most developed part.
What is the primary root?
400
This tree unique fan shaped leaves, and is a popular choice in ornamental gardens. The large, round fruits are bright yellow when ripe and smell terrible when crushed.
What is a Ginkgo?
500
These two areas are the lifelines in the stem. One tissue moves water up from the roots to the leaves, while the other tissue moves food down from the leaves to the roots.
What is the xylem and phloem?
500
The leaves are referred to as the "food factory" of the plant. The leaf uses this process of absorbing sunlight to make glucose for the plant to use as food.
What is photosynthesis?
500
All flowering plants are classified and grouped together in this category of taxonomy.
What are angiosperms?
500
This type of root system consists of one, large root that penetrates deep into the soil. Carrots, radishes, beets, and turnips all have this type of root system.
What is a taproot?
500
This type of plant dies back every fall, overwinters in the ground and begins growing again in the spring. This process happens year after year. These plants are often planted as bulbs.
What is a perennial?