Do Flowers Have Age?

People gain age when a year passes, so are the trees grow an age after 365 days. But do you know whether flowers have ages? No! But why?

Flower_poster_2

-Wikimedia Commons

Because no flower could keep blooming over a year. In this way, flowers’ age could not be counted by year, it could only counted by day or hour.

Orchid is a tropical flower, it could keep blooming for 80 days, which could be called the star of longevity in the flowers.The famous royal water lily could just keep blooming for 2 days.

There are some flowers with even shorter blooming days which could only be counted by hours, such as morning gloryetc. The shortest blooming flower is Cornflower, only blooms for 5 minutes to half an hour.

Have a Think

The shortest blooming flower is ( ).

A. corn flower                     B. peony        C. morning glory

Answers: A

Why Flowers are Fragrant?

Rose has strong scent, osmanthus is sweet, orchid is fresh. Why the flowers could send out scent?

Listening a flower song at first

Flowers have a kind of cell called eleocyte filled with fragrant oil. Different flowers produce different fragrant oil, so they smell different. This oil would volatilize into the air with water, especially when the sunlight is strong, the fragrant oil could volatilize fast and the fragrance would be denser.

rose

-khinhtwemya

We don’t have to worry that the fragrant oil would be fully volatilized, because it could be produced constantly. It could not only reduce the water lost, but also attracts insects to gather honey and pollinate。

Flowers with bright color usually smell not dense. They always attract insects by their bright colors during their evolution, so they don’t have to send out fragrance.

As for those small flowers without bright color, they have strong fragrance, because they have to attract the insects by their fragrance.

Have a Think

The eleocyte in the flower would secrete ( ).

A. aromatics          B. potpourri           C. aromatic oil

Answers: .C

Is Rafflesia the Biggest Flower in the World?

The biggest flower in the world is Rafflesia,which is also called Rafflesia arnoldii。It grows in the tropical forest on Java and Sumatra islands in Indonesia.

rafflesia

– Wikimedia Commons

The longest diameter of the petal is 1.4 meters. 5 blood red petals is spotted with faint yellow plaque,looking like luxurious topaz sprinkling on the red velvet.

There is a big disk in the middle of the flower with diameter reaching to 0.3 meter. It seems like a big basin. Although the flower is large, its seeds is very small, which would broadcast themselves by attaching to animals’ feet.

Rafflesia has neither obvious root nor any stems and leaves. It inhabit on the rhizome of the wild rattan in the tropical forest, absorbing nutrients to raise themselves.

It need only few days from grow to bloom. We can smell slight fragrance when it just bloom, but after 4 days when it began to wither,it has a smell of odour, attracting flies and insects to transmit flower powder for them. In few weeks, the flowers began to curl,becoming sticky mash.

Rafflesiawas found by English people in 1818 on the Sumatra. Now this flower is near extinction.

 see more ……   Twin blooming rafflesiawahttps