Compositae or Asteraceae is the largest dicot family among angiosperms. It comprises about 13 subfamilies, over 1900 genera and over 32000 currently accepted species.
What is the largest plant family?
Asteraceae, also known as the Compositae, is the largest family of flowering plants. The family has a worldwide distribution and is found from sea level to the highest mountains.
What is the largest angiosperm?
The world’s tallest angiosperm is currently an individual of Australian mountain ash, or swamp gum (Eucalyptus regnans) known as Centurion.
How many species of monocots are there?
There are approximately 60,000 species of monocots, including the most economically important of all plant families, Poaceae (true grasses), and the largest of all plant families, Orchidaceae (orchids).
What is the smallest plant on earth?
The world’s smallest flowering plant is the watermeal, or Wolffia globosa. Found all over the planet, this bright green oval plant is about the size of a grain of rice! Wolffia is the smallest genus of the aquatic plants known as duckweeds, which are part of the family Lemnaceae.
Which plant group has the most species?
The three largest flowering plant families containing the greatest number of species are the sunflower family (Asteraceae) with about 24,000 species, the orchid family (Orchidaceae) with about 20,000 species, and the legume or pea family (Fabaceae) with 18,000 species.
What is the most poisonous plant in the world?
This is what earns the castor oil plant its reputation as the world’s most poisonous. After the laxative oil has been extracted the remaining residues of its mottled brown seeds contain a potent cocktail of toxins. Ricin kills by interfering in cell metabolism, the basic chemical processes needed to sustain life.
Which is the smallest Gymnosperm in the world?
Smallest Gymnosperm – Zamia pygmaea.
Which is biggest plant in the world?
The largest by wood volume and mass is the giant sequoia (Sequoiadendron giganteum), native to Sierra Nevada and California; it grows to an average height of 70–85 m (230–279 ft) and 5–7 m (16–23 ft) in diameter.
Do monocots have 5 petals?
Monocots typically possess three sepals and three petals. In some cases the sepals resemble the shape and color of petals and are described as petaloid or petal-like. Also monocot flowers usually have six stamens. Dicots typically possess four or five sepals and four and five petals.
Why is a banana a Monocot?
Bananas are monocotyledonous herbs. Banana plants generally consist of one cotyledon in their embryo and the leaf venation is parallel, which is similar to other monocotyledons. They have a fibrous root system, which does not possess a cambium and cannot increase in diameter.
Is bamboo a Monocot?
Bamboo is a type of grass that belongs in the monocot classification. Like all monocots, bamboo plants contain one cotyledon in their embryonic…
What is the rarest flower in the world?
The rarest flower in the world is the Middlemist Red. The scientific name of this flower is the Unspecified Camellia, and currently, there are only two known examples of this flower in the entire world.
What are the oldest plants on Earth?
8 Oldest Plants in the World
- Water Caltrop. Age: 145 – 66 million years. …
- Welwitschia. Age: 146 – 100 million years. …
- Wollemia (Wollemi Pine) Age: 200 million years. …
- 5. Japanese Umbrella Pine (Sciadopitys) Age: 230 million years. …
- Cycads. Age: c.280 million years. …
- Horsetails (Equisetum) Age: over 300 million years. …
- Agathis. …
- Moss.
Which is the smallest fruit in the world?
globosa are similar in size and are the smallest fruits on earth. Certain epiphytic orchids of the tropical rain forest produce the world’s smallest seeds weighing only 35 millionths of an ounce.