How Many Flowers Are There?

Last Updated on April 20, 2023 by Derek

pink petaled flower

The world is full of flora and fauna. With over 435,000 species of plants in the world, many different types of flowers exist in nature.

Ranging in size, color and form, there are over 300,000 plant species which bear flowers. But not all flowers have charmed humans in equal measure.

Key Takeaways

  • There are more than 300,000 species of flowering plants in the world.
  • Plants that grow flowers are scientifically called angiosperms.
  • The natural color of the rose is white and red. Any other color is induced artificially.
  • 80 percent of flowers in the USA is imported.
  • The rarest flower in the world is Ghost Orchid, found in Florida and Cuba.
  • Rose is the most popular flower in the world.

World Flora Online

What are the main types of flowers?

With over 300,000 flower plant species around the world, there are many flower types. But you can chiefly classify them based on season into perennials, annual and biennial flowers.

Perennial Flowers

Such flowers have a long lifespan, extending to multiple years. These are hardy plants which can survive difficult climate and terrain conditions.

Some famous perennial flowers include:

  • Daisy
  • False Indigo
  • Daylily
  • Phlox
  • Hydrangeas
  • Goldenrod
  • Asters
  • Sage
  • Tickseed

Annual Flowers

As the name suggests, annual flowers live for a year. In one year, these plants germinate from seeds into seed-producing, flower-bearing plants and then perish.

Some good examples of annual flowers include:

  • Petunias
  • Caladium
  • Blue Daze Evolvulus
  • Begonia
  • Angelonia
  • Celosia
  • Cosmos
  • Geraniums
  • Marigold
  • Sunflower
  • Dahlias

Biennial Flowers

The lifespan of these flowers falls between that of annual and perennial flowers. They can live up to 2 years, from germination to seed production.

Some good biennial flower examples include:

  • California Poppy
  • Black-eyed Susan
  • Forget-me-not
  • Canterbury Bells
  • Hollyhock
  • Foxglove
  • Pansy
  • Honesty

What’s the rarest flower in the world?

pink and white flowers

The sight of fresh, beautiful flowers have the potential to brighten up your day. Popular flowers like rose and lilies have become very mainstream and predictable.

However, there are some rare flowers in nature whose uniqueness makes their beauty incomparable. Some flowers on this list may never be available at your local florist shop.

To begin with, the rarest flower of them all is the Ghost Orchid. This Florida and Cuba native resembles a spider web. Also, the Ghost Orchid plant has no leaves.

ghost orchid flowers

National Park Service

The reason it is the rarest flower in the world is due to its strict growing requirements. Ghost Orchid requires high humidity and high temperature to grow.

Apart from the Ghost Orchid, there are other flowers that are also very rare.

These include Rafflesia Arnoldii (Corpse Lily), Parrot’s Beak, Purple and Yellow Lady Slippers, Kadpul flower, Sea Poison tree, Campion, Snapdragon’s Skull, and Happy Alien. 

Ghost Orchid Growing Conditions
Plant Common Name Scientific Name US Growing Zone Hardy/Perennial Soil Type Sunshine Requirements Water Needs
Ghost Orchid Dendrophylax lindenii 10-11 Epiphyte, not hardy Tree bark or sphagnum moss Shade to filtered light High humidity, regular misting

Are black roses real?

grayscale photo of rose flower

There are no naturally occurring black roses in nature. Florists or flower enthusiasts can color the rose petals black using a simple technique.

To turn the colors of rose petals black, the florist chooses a special rose variety that can be dyed. Then, they dip the rose stem in this black dye.

Black Rose Growing Conditions
Plant Common Name Scientific Name US Growing Zone Hardy/Perennial Soil Type Sunshine Requirements Water Needs
Black Rose Rosa ‘Black Baccara’ 6-10 Hardy hybrid tea rose Well-draining, fertile soil Full sun to partial shade Regular watering

Slowly, the stem absorbs the dye and transfers the pigment up to the flower. Over a period of time, the rose petals turn black.

The reasons to do so vary. Some people may want black roses for a special occasion like Halloween.

Others may use black roses to express a dark sentiment. Generally, a black rose could symbolize death, revenge, despair, mystery, evil or resistance.

People with gothic fashion sensibilities may particularly cherish the visuals of a black rose.

How many flowers are there in the world 2022

As mentioned earlier in this article, there are around 400,000 types of plants in the world. The precise number is 387,703.

Out of these, 342,953 are vascular plants while 22,750 species lack a vascular system. The remaining plants include seaweeds and algae. Out of these, around 300,000 plants produce flowers.

In the year 2022, scientists discovered some new flower species in the wild.

One such flower is the Bolivian Giant water lily. Since the 1800s, this flower has eluded the scientific scanner. But Carlos Magdalena, a horticulturist, proved that this species is different from V. amazonica.

Bolivian Giant water lily

Bolivian Giant Water Lily Growing Conditions
Plant Common Name Scientific Name US Growing Zone Hardy/Perennial Soil Type Sunshine Requirements Water Needs
Bolivian Giant Water Lily Victoria cruziana 9-11 Tender aquatic perennial Rich, loamy soil Full sun Frequent watering, prefers shallow water

Another newly discovered species is the Indonesian Peat Swamp tree. This tree was discovered accidentally in a mass flowering event. Its flowers have a thick, unique design. 

The Vietnamese Orchid is another new plant species discovered in 2022. It has orange flowers and speckled leaves. As a lithophytic plant, this orchid grows on or in other plant species.

Pink Vietnamese Orchid flowers

Prairie View Univ.

Vietnamese Orchid Growing Conditions
Plant Common Name Scientific Name US Growing Zone Hardy/Perennial Soil Type Sunshine Requirements Water Needs
Vietnamese Orchid Ludisia discolor 10-11 Tender perennial Well-draining, moist soil Partial shade to full shade Regular watering

What is the name of all flowers? (What are they classed as?)

The scientific term for plants that bear flowers is “angiosperm”. Comprising of 300,000 species, angiosperms form the most diverse group under the Plantae Kingdom.

In fact, around 80 per cent of all discovered green plants alive on the planet today are angiosperms.

All angiosperms are vascular plants. This means, the flowers of these plants contain an egg for fertilization. The egg is held inside the ovary which is itself within the flower.

After fertilization, the flower matures into a fruit which contains reproductive seeds.

In contrast to angiosperms, gymnosperms do not have eggs inside an ovary. Instead, they expose the developed seeds on special reproductive structures, like cones.

Since angiosperms dominate the terrestrial ecosystems, they are crucial to maintain biodiversity. Flowering plants serve as food for many insects, birds and even humans.    

What are the most popular 5 types of flowers?

As you know by now, there are thousands and thousands of different flower types in the world. But some are more appealing and attractive to humans across societies.

The most popular flowers in the world are:

  • Rose: It is rare to find someone who is not familiar with the rose. The most popular flower in the world has mesmerized humans with its elegant look and intoxicating fragrance. After all, it is a symbol of romance, passion and love.
  • Tulip: Initially grown by Turks, Tulips are now commonplace at all florist shops. Coming in a variety of colors like yellow, pink and red, Tulips can brighten up your day with their fresh appearance.
  • Sunflower: This flower has been prominent in human civilization for generations. It has a distinctive appearance and a large stature. Fun fact: the flower faces in the direction of the sun.
  • Daffodil: With over a hundred species, Daffodils are found in many continents like Asia, Europe and North America.
  • Marigold: These beautifully colored flowers are used extensively in Indian Hindu culture. They hold a spiritual significance.

List the main types of flowers and their names

The main types of flowers in the world are: Annual, perennial, biennial, shrub and tree flowers. Here are some flower names in each category:

  • Annual Flowers: Petunia, Cosmos, Larkspur, Marigold, Calendula, Snapdragon, Vinca, Begonia, Kale, Pansy, Primrose, Cornflower and more.
  • Perennial Flowers: Fairy Iris, Peruvian Day Lily, False Spirea, Dropmore flower, Gardenia, Lantana, Lavender, Lilac, Orchid and more.
  • Biennial Flowers: Canterbury Bells, Evening Primrose, Foxglove, Angelica, Caraway Herb, Hollyhocks, Sweet Williams, Black-eyed Susan and more.
  • Shrub Flowers: Rhododendron, Weigela, Spirea, Camellia, Abelia, Buttonbush, Shrub rose, Forsythia, Flowering quince, Summersweet and more.
  • Tree Flowers: Gulmohar, Yoshino Cherry, Silk Cotton, Cherry Blossom, Bauhinia, Parijat, White Dogwood, Indian Laburnam, Saucer Magnolia and more.

Name 15 types of flowers that grow in USA

Did you know that around 80 per cent of all flowers available in the USA are imported from other countries? The major countries which import flowers to the USA are Ecuador and Columbia.

When it comes to the flowers grown on the US soil, the majority is grown in the state of California. Also, the biggest audience for flowers in the US are women.

Here is a list of the flowers grown in the USA:

  • Begonia
  • Carnations
  • Dahlia
  • Daffofil
  • Gerbera Daisy
  • Pansies
  • Tulips
  • Geranium
  • Hydragea
  • Gladioli
  • Rose
  • Cardinal flower
  • Blue Vervain
  • Fireweed
  • Nodding Onion

Do purple roses exist?

selective focus photography of pink rose flower

Yes, purple roses exist. But they cannot be found in the wild. Instead, hybridists crossbreed different rose species to create a variation with purple, lilac or lavender colored petals.

First produced in the 1800s, purple roses have become very popular today. These unique looking roses symbolize royalty, mystery, respect and grandeur. 

Purple Rose Growing Conditions
Plant Common Name Scientific Name US Growing Zone Hardy/Perennial Soil Type Sunshine Requirements Water Needs
Purple Rose Rosa ‘Purple Pavement’ 4-9 Hardy perennial Well-draining, fertile soil Full sun Regular watering

FAQ relating to How many flowers are there

What is a rare flower?

A rare flower is a flower that is not widely found in nature. For example, Ghost Orchid is believed to be the rarest of them all as it requires high humidity and temperature to bloom.

What is the prettiest flower?

Rose is arguably the most beautiful flower in the world. Other close contenders for the title include Hydrangea, Bleeding-heart, Orchid, Tulip and Lily.

What is the rarest color of flower?

The rarest color of flower in the Plantae kingdom is blue. Generally, blue is a hard color to find in nature. In fact, only 10 percent of known flowers are blue. In animals, the color is even rarer.

Are rainbow roses real?

Yes, rainbow rose is real. A horticulturist named Peter van de Werken created multicolor rose petals using different dyes.

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