Course Title: Principles and Elements of Floral Design
Lesson Title: Identifying Parts of a Flower
TEKS Addressed in Lesson: 130.18 (c) (1) B;
http://educationalexcellence.tamu.edu/docs2/05779_Floral%20Design%20TEKS.pdf
Lesson Objectives the student will be able to:
1. Discover the four basic parts of a flower.
2. Describe the benefit and purpose that each part has on the flower.
3. Distinguish between components of perfect and complete flowers.
4. Identify the parts or type of flower using pictures or real flowers.
Tools and Equipment
1. PowerPoint entitled: “Parts of a Flower PPT”
2. Pictures or examples of each of the following parts or types of flowers: petal, stamen, pistil,
sepal, anther, filament, stigma, style, ovary, perfect & complete, perfect & incomplete, and
imperfect & incomplete.
Key Terms / Vocabulary
1. Pistil
2. Stamen
3. Sepals
4. Petal
5. Pollination
Interest Approach/Anticipatory Set
1. Link: What do you think of when you think of flowers?
2. Motivation: Did you know that there are four basic parts that make up flowers?
3. Overview: Today we are going to identify each of the four basic parts and learn the function of
each.
Teaching Plan and Strategy / Presentation of New Material
1. Open the PowerPoint entitled “Parts of a Flower PPT,” Progress through the slides; Teach
the material from the slides to the students and allow time for discussion on each slide.
a. Identifying flower characteristics
i. Flowers are important in plant reproduction.
ii. Flowers are necessary in making the seeds from which plants grow.
iii. Every plant that makes seeds has a unique flower.
b.
c.
d.
e.
f.
g.
h.
iv. Although many differences occur in flower size, shape, and color, most
flowers have the same basic parts.
Parts of a flower
i. Complete flowers consist of four basic parts
1. Sepals
2. Petals
3. Stamen
4. Pistil
Sepals
i. Sepals are small and green.
ii. They look like leaves.
iii. The sepals cover and protect the flower bud before it opens.
Petals
i. Petals are the showy part of the flower.
ii. Flower petals vary in size, shape, and color.
iii. The bright color and smell of the petals attract insects to the flower for
pollination.
Stamen
i. The male part of the flower
ii. Each stamen consists of a filament and an anther.
iii. The filament is a short, slender stalk that supports the anther.
iv. The anther is a sac-like structure that contains a yellowish powder called
pollen.
Pistil
i. The pistil is the female part of the flower.
ii. It is located in the center of the flower and is vase-shaped.
iii. The pistil consists of the stigma, style, and ovary.
Parts of the Pistil
i. The stigma is the top part of the pistil that is sticky which catches and holds
pollen.
ii. The style is the tube-like structure that connects the stigma and the ovary.
iii. The ovary is the enlarged portion at the base of the pistil. The ovary
produces egg cells, which develop into seeds when fertilized.
Incomplete Flowers
i. Incomplete flowers lack one or more of the four floral parts.
ii. Perfect flowers may or may not have sepals or petals, but contain both the
stamen and pistil.
iii. Imperfect flowers may or may not have sepals or petals; they lack either the
stamens or pistil.
Activity/Application/ Student Engagement /Laboratory
 Place stations around the classroom. Each station should consist of a picture, real, or fake flower
that requires the student to label the part.
 Parts or types of flowers to be labeled are: petal, stamen, pistil, sepal, anther, filament, stigma,
style, ovary, perfect & complete, perfect & incomplete, and imperfect & incomplete.
 Students will travel around the room and label each part on their own piece of paper.
Evaluation / Summary
 Pick individuals or ask the entire class these questions:
o What are the four basic parts of a flower? Petal, stamen, sepal, pistil
o What is the male part of the flower called, and what two parts does it consist of?
Stamen; anther & filament
o What is the female part of the flower called, and what three parts does it consist of?
Pistil; Style, stigma, & ovary
o What is the difference between a perfect and complete flower? Incomplete flowers lack
one or more of the four floral parts, Perfect flowers may or may not have sepals or
petals, but contain both the stamen and pistil, Imperfect flowers may or may not have
sepals or petals; they lack either the stamens or pistil.
References/Additional Materials / Extended Learning Opportunities/ Enrichment
 Plant Identification: Identifying Flower Characteristics from Instructional Materials Services.
College & Career Readiness Standard
 Science VI, A, 1, d
Developed by the Department of Agricultural Leadership, Education & Communications,
Texas A&M University
for the Texas Education Agency, Educational Excellence Project for AFNR
©Texas Education Agency, 2014