Flower Charts, Botany, School Education

Quick Answer: Flower Charts are botany wall charts that illustrate the structure of a flower and its role in reproduction, labelling sepals, petals, stamens and the carpel, and often showing pollination and fertilisation. Biology teachers use them for lessons on sexual reproduction in flowering plants.

From Flower Parts to Fertilisation

A flower chart usually starts with a longitudinal section of a complete, bisexual flower, with the China rose (hibiscus) and mustard as common textbook examples. The four whorls are labelled from outside in: the calyx of sepals that protects the bud, the corolla of petals that attracts pollinators, the androecium of stamens (anther and filament), and the gynoecium or pistil (stigma, style and ovary with its ovules).

Further panels typically follow what happens next. Pollination carries pollen from anther to stigma by insects, wind, water or birds; a pollen tube grows down the style to an ovule; and fertilisation produces the seed while the ovary develops into the fruit. Senior-level sheets may add inflorescence types, sections of an anther and an ovule, and floral diagrams.

Applications

• Guiding a practical in which students dissect a real flower and lay out its parts
• Teaching pollination types and the adaptations of insect- and wind-pollinated flowers
• Explaining fertilisation and the formation of seed and fruit
• Diagram practice for examinations

Care & Handling

• During a flower dissection, hang the chart where students can see it from their benches and keep petals, pollen and sap off the sheet.
• Protect it from sunlight; the petal and stamen colours that help students match chart to specimen fade over time.
• Roll it printed side outward for storage.

Specifications

Why Choose LabEquip

Schools usually buy flower charts together with the Fruits Charts, because fruit and seed formation continues the same topic. Related botany titles are in Educational Charts, and orders go through the contact page.

Frequently Asked Questions

What are the four whorls of a flower?

From outside to inside: the calyx (sepals), corolla (petals), androecium (stamens, the male part) and gynoecium or pistil (carpels, the female part). A flower with all four is called complete.

What is the difference between pollination and fertilisation?

Pollination is the transfer of pollen from an anther to a stigma. Fertilisation happens later, when a male gamete carried down the pollen tube fuses with the egg cell in the ovule.

How do insect-pollinated and wind-pollinated flowers differ?

Insect-pollinated flowers tend to have bright petals, scent, nectar and sticky pollen. Wind-pollinated flowers, such as grasses, are usually small and dull, with feathery stigmas and large amounts of light pollen.

Which flowers work well for a school dissection?

Large, simple flowers such as hibiscus (China rose), datura or mustard show the parts clearly. Students cut the flower lengthwise and compare the cut face with the longitudinal section on the chart.

What is double fertilisation?

In flowering plants one male gamete fuses with the egg to form the zygote, and the other fuses with the two polar nuclei to form the endosperm, which feeds the developing seed. Charts for senior classes usually illustrate it.

What happens to the flower parts after fertilisation?

The ovule becomes the seed and the ovary becomes the fruit, while the petals, stamens and often the sepals wither and fall. This links the flower chart directly to the study of fruits.

Last Updated: September 2026