Poaceae family is distributed throughout the world. It has 600 genera and 10,000 species. There are 158 genera and 492 species of this family in Pakistan. The economic Importance of Poaceae lies for both men and animals. three major characteristics of the Poaceae or grass family separate them from other plant families. it is the combination of three characteristics of the grass family.
Poaceae also is known as Gramineae have some unique characteristics than other families. usually known as grass family, have 12 subfamilies, about 600 genera, and some 10,000 or more species. they are arranged in spikelets, each has one or more florets. the spikelets consist of two or fewer bracts at the base.
perianth reduced to two scales( Calle lodicules) expand and contract to spread the lemma and palea. there are some more characteristics are given below:
Their inflorescence is compound. The unit of its inflorescence is called spikelet. These spikelets are variously arranged.
The spikelets are arranged on a slender axis called the rachilla. Each spikelet consists of bracts. The lower two empty bracts are called glumes. The glumes cover the whole of the spikelet.
The upper bract is called a lemma. It encloses the flower. A hyaline scale-like bract is a present opposite to lemma. It is called the palea. This whole structure consisting of the lemma, palea, and the flower is called a floret. The glumes or lemmas also contain one or more bristle-like structures called awns.
This basic pattern of spikelet is present in all the members of this family. The spikelets of grasses vary in different genera. However; they have different numbers of fertile florets and different numbers of sex organs in them.
Flower: Flower is usually bisexual (sometimes unisexual), small, inconspicuous, sessile, bracteate, incomplete, zygomorphic, and hypogynous.
Perianth: It is absent or it is represented by 2 (rarely 3) scales called lodicules. These lodicules are hyaline or fleshy.
Androecium: They have 1 to 6, mostly 3, free stamens. They have delicate filaments. While their anther is versatile.
Gynoecium: They have a compound pistil with three united carpels. Only one carpel is functional. However; stigma usually large and feather-like.
Fruit: These fruits are grains or caryopsis. Caryopsis is a dry indehiscent fruit in which the fruit wall (pericarp) is completely fused with the seed coat.
This family has greater importance than all other families of flowering plants. Although; it has importance both for men and animals.
the name Poaceae was suggested by John Hendley Barnhart in 1895 on his tribe Poeae in 1814 and derived from Ancient Greek πόα (póa, “fodder”). although the name was given by Robert Brown. the genus Poa was discovered by Carl Linnaeus in 1753.
List of plants in the family Poaceae that belongs to grass:
if the leaves of the plant are evergreen, longer than wide, parallel veins consist of a cylindrical sheath, conspicuous nodes on stems then the following are things important to identify Poaceae family plants.
Answer: Bamboo is the largest plant in the grass family.
Answer: 780 genera and 12,000 species are in total. it is the fifth-largest plant family in the world. the other four are Asteraceae, Orchidaceae, Fabaceae, and Rubiaceae.
You May Also Like the other Plant Families:
When it comes to creativity, you might ask yourself whether or not you can feel…
In the dynamic landscape of India, where tradition and technology frequently intersect, the domain of…
In this article, we will provide a comprehensive explanation of IMDb's basic information, simple usage…
Boostcraft.net is your one-stop destination for all your WoW retail boost needs. Our team of…
California's logistics and warehousing industry has experienced tremendous growth over the years. With the increasing…
In recent years, the food and beverage industry has witnessed a significant shift towards digitization,…