Parts of a Flower Worksheets - Free Printable - Free Printable

Let's solve this step-by-step by identifying and labeling the parts of the flower using the Word Box provided:

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🔍 Step 1: Understand the Flower Structure

The image shows a typical flowering plant, with both male and female reproductive parts. We'll identify each labeled part based on its position and function.

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🌸 Key Parts of a Flower (from Word Box):

| Term | Description |
|------|-------------|
| Sepal | Green leaf-like structures at the base of the flower; protect the bud |
| Petal | Colorful parts that attract pollinators |
| Stamen | Male reproductive organ; consists of anther and filament |
| - Anther | Produces pollen |
| - Filament | Supports the anther |
| Carpel | Female reproductive organ; consists of stigma, style, and ovary |
| - Stigma | Receives pollen |
| - Style | Connects stigma to ovary |
| - Ovary | Contains ovules; develops into fruit |
| - Ovule | Becomes seed after fertilization |
| Receptacle | The base where floral parts attach |
| Pollen tube | Grows from pollen grain down the style to deliver sperm |
| Stem | Supports the flower and transports water/nutrients |

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✔ Now, Label Each Part in the Diagram:

We’ll go through each blank and match it with the correct term.

#### Top-left (left side of flower):
- Topmost line pointing to pink petal: → Petal
- Below that, pointing to green leaf-like structure: → Sepal

#### Left side:
- Line pointing to the green stem: → Stem
- Line pointing to the base where all parts are attached: → Receptacle

#### Right side (center to top-right):
- Top line pointing to yellow tip of stamen: → Anther
- Next line pointing to thin stalk under anther: → Filament
- Then, pointing to the top of female part (sticky tip): → Stigma
- Next, pointing to the long tube below stigma: → Style
- Next, pointing to the bulbous bottom of female part: → Ovary
- Inside ovary, small dots: → Ovule

#### Bottom center:
- Line pointing to the entire female reproductive structure (stigma + style + ovary): → Carpel
- Line pointing to the tube growing from pollen down the style: → Pollen tube

#### Final Check:
- Stamen = Anther + Filament → So if there’s a label for the whole male structure, it's Stamen
- But here, Anther and Filament are separately labeled → So we use both
- Carpel is the whole female structure → so it should be labeled where the full structure is shown

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✔ Final Answer – Labels for Each Blank:

From top to bottom, left to right:

#### Left Side (Left Column):
1. Petal (points to pink petal)
2. Sepal (points to green sepal)
3. Stem (points to green stem)
4. Receptacle (points to base where parts attach)

#### Right Side (Right Column):
1. Anther (yellow tip of stamen)
2. Filament (stalk of stamen)
3. Stigma (top of carpel)
4. Style (tube connecting stigma to ovary)
5. Ovary (bulbous bottom of carpel)
6. Ovule (inside ovary)

#### Center:
- Carpel (entire female structure)
- Pollen tube (tube from pollen down the style)

> Note: "Stamen" is not directly labeled as a single part, but since Anther and Filament are already used, the Stamen is the combination — so unless a box points to the full male structure, we don’t need to label "Stamen" separately.

But wait! There’s a box on the far left connected to two lines — one to petal, one to sepal — and a box on the far right connected to multiple parts. Let's re-express based on diagram layout.

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🧩 Re-analyze Layout:

Looking closely:

- Left side has a vertical box with two lines: one to petal, one to sepal → likely labeled Petal and Sepal
- Right side has a large box with 5 lines → likely for stamen parts and carpel parts
- Bottom center has one line → stem
- Center has one line → receptacle
- One line pointing to ovary → ovary
- One line pointing to ovule inside ovary → ovule
- One line pointing to stigma → stigma
- One line pointing to style → style
- One line pointing to anther → anther
- One line pointing to filament → filament
- One line pointing to pollen tube → pollen tube
- One line pointing to carpel → carpel

Wait — the word box includes:
- Sepal, Anther, Filament, Stamen, Stigma, Receptacle, Style, Ovary, Petal, Ovule, Carpel, Pollen tube, Stem

So all these terms must be used.

Now let’s assign each label to the correct blank:

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✔ Final Labeling (based on standard flower diagrams):

Assuming the diagram has:

1. Top-left blank → points to petal → Petal
2. Middle-left blank → points to sepal → Sepal
3. Bottom-left blank → points to stem → Stem
4. Bottom-center blank → points to receptacle → Receptacle
5. Far-right column, top blank → points to anther → Anther
6. Second from top on right → filament → Filament
7. Third from top on right → stigma → Stigma
8. Fourth from top on right → style → Style
9. Fifth from top on right → ovary → Ovary
10. Sixth from top on right → ovule → Ovule
11. Center line pointing to the entire female structure → Carpel
12. Line pointing to pollen tube → Pollen tube
13. One line pointing to the stamen (whole structure) → Stamen?

But note: Stamen is made of anther + filament, so if they’re already labeled separately, Stamen might not be needed unless there's a box for the whole thing.

But looking again: the right-side box has 5 blanks, and the left side has 2, plus center and bottom.

Let’s assume:

- Left side:
- Top: Petal
- Middle: Sepal
- Bottom: Stem

- Center:
- One blank pointing to receptacle → Receptacle
- One blank pointing to carpel → Carpel
- One blank pointing to pollen tube → Pollen tube

- Right side:
- From top to bottom:
1. Anther
2. Filament
3. Stigma
4. Style
5. Ovary
6. Ovule

Wait — only 5 boxes on the right? But we have 6 parts.

Ah — the large box on the right has 5 oval blanks and one vertical rectangle beside it.

Possibly:
- The vertical rectangle is for Stamen or Carpel?
- But Carpel is already labeled in center.
- Stamen is the combination of anther + filament.

So maybe:
- The vertical rectangle is for Stamen, and the two ovals above it are Anther and Filament?

But no — the lines go to individual parts.

Best interpretation:

Each oval is a separate label.

So:

✔ Correct Assignment:

Let’s list all labels and their positions:

| Line | Points To | Label |
|------|----------|-------|
| 1 | Pink petal | Petal |
| 2 | Green sepal | Sepal |
| 3 | Green stem | Stem |
| 4 | Base of flower (where parts attach) | Receptacle |
| 5 | Yellow tip of stamen | Anther |
| 6 | Thin stalk of stamen | Filament |
| 7 | Sticky top of female part | Stigma |
| 8 | Tube below stigma | Style |
| 9 | Bulbous bottom of female part | Ovary |
| 10 | Inside ovary (small dots) | Ovule |
| 11 | Entire female structure (stigma+style+ovary) | Carpel |
| 12 | Tube from pollen down style | Pollen tube |

Now, the Word Box has 13 words, and we have 12 labels to fill.

Wait — we have 12 blanks?

Let’s count:

- Left side: 3 blanks (one for petal, one for sepal, one for stem)
- Center: 1 blank (receptacle), 1 (carpel), 1 (pollen tube)
- Right side: 5 blanks (anther, filament, stigma, style, ovary, ovule?) — but only 5 ovals

Wait — actually, the right side has 5 ovals, and one vertical rectangle next to them.

Possibly:
- The vertical rectangle is for Stamen or Carpel?

But Carpel is already labeled.

Alternatively, the vertical rectangle is for Stamen, and the two upper ovals are Anther and Filament.

But the lines go to individual parts.

Most likely:

- The five ovals on the right are:
1. Anther
2. Filament
3. Stigma
4. Style
5. Ovary

- Then the sixth is Ovule — but it's not in the ovals?

Wait — there’s a line pointing to inside ovary → that must be Ovule

So perhaps the right side has:
- 5 ovals: Anther, Filament, Stigma, Style, Ovary
- And a separate line to Ovule → so it’s another blank

And Carpel is labeled in center.

And Pollen tube is also a separate label.

So total blanks:

1. Petal
2. Sepal
3. Stem
4. Receptacle
5. Anther
6. Filament
7. Stigma
8. Style
9. Ovary
10. Ovule
11. Carpel
12. Pollen tube

That’s 12 blanks, and 13 words in word box.

Extra word: Stamen

Ah! So Stamen is the combination of anther and filament.

But if Anther and Filament are already labeled, then Stamen may not be used — unless there's a blank for the whole male structure.

But in this diagram, the male parts are labeled separately.

So likely, Stamen is not needed as a separate label.

But the word box includes it.

Possibility: Stamen is the label for the entire male structure, so if there's a blank pointing to the whole stamen, it should be Stamen.

But in most such diagrams, Stamen is labeled when the whole structure is indicated.

Here, the lines point to anther and filament separately — so Stamen is not required.

But since it's in the word box, maybe it's intended to be used.

Wait — look at the right side: the vertical rectangle beside the ovals — it might be for Stamen?

Yes! That makes sense.

So:

- The five ovals are:
- Anther
- Filament
- Stigma
- Style
- Ovary

- The vertical rectangle on the right is for Stamen (the whole male structure)

- The line pointing to ovule is Ovule

- The line pointing to carpel is Carpel

- The line pointing to pollen tube is Pollen tube

- The line pointing to receptacle is Receptacle

- The line pointing to stem is Stem

- The line pointing to petal is Petal

- The line pointing to sepal is Sepal

So now, all 13 words are used?

No — we have:

- Petal ✔
- Sepal ✔
- Stem ✔
- Receptacle ✔
- Anther ✔
- Filament ✔
- Stigma ✔
- Style ✔
- Ovary ✔
- Ovule ✔
- Carpel ✔
- Pollen tube ✔
- Stamen ✔

→ All 13 used.

So the vertical rectangle on the right is for Stamen, and the five ovals are for the individual parts.

But wait — Stamen is not a part of the flower in the same way; it's a structure made of two parts.

But in labeling, it's acceptable.

So final answer:

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✔ Final Labels:

#### Left Side:
- Top blank → Petal
- Middle blank → Sepal
- Bottom blank → Stem

#### Center:
- Blank pointing to base → Receptacle
- Blank pointing to female structure → Carpel
- Blank pointing to tube from pollen → Pollen tube

#### Right Side:
- Vertical rectangle → Stamen
- Five ovals (top to bottom):
1. Anther
2. Filament
3. Stigma
4. Style
5. Ovary

#### Additional:
- Blank pointing to inside ovary → Ovule

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✔ Summary of Labels:

| Blank Position | Label |
|----------------|--------|
| Left-top | Petal |
| Left-middle | Sepal |
| Left-bottom | Stem |
| Center (base) | Receptacle |
| Center (female structure) | Carpel |
| Center (pollen tube) | Pollen tube |
| Right vertical rectangle | Stamen |
| Right oval 1 | Anther |
| Right oval 2 | Filament |
| Right oval 3 | Stigma |
| Right oval 4 | Style |
| Right oval 5 | Ovary |
| Line to ovule inside ovary | Ovule |

✔ All 13 words used.

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📝 Conclusion:

This worksheet teaches students the anatomy of a flower, including reproductive parts like stamen (male) and carpel (female), and supporting structures like petals, sepals, and stem.

By matching the labels from the word box, students learn how flowers reproduce and what each part does.

Let me know if you'd like a printable version or explanation for kids!