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Home > News & Articles > Floral Formula of Fabaceae: Definition, Systemic Position, Diagram, How to Use, and Economic Importance
Updated on 24th May, 2023 , 5 min read
Fabaceae (pea family) is a large angiosperm family. Leguminosae is another name for the family of plants known as legumes. It is readily available all around the world. It contains a variety of vital pulses, such as peas, soybeans, chickpeas, and others. The floral formula uses numbers, letters, and other symbols to describe the structure of a flower. The floral diagram may very well reflect the information offered by the floral formula. The floral formula's finest attribute is that it is unique to a family of plants, or it may be made more specific for a certain species, and it becomes the emblem for that particular family/species of blooming plants.
The Fabaceae or Leguminosae family of flowering plants, also known as the legume, pea, or bean family, is a vast and agriculturally significant flowering plant family. It consists of trees, shrubs, and permanent or annual herbaceous plants that may be identified by their fruit (legume) and complex, stipulating leaves. With over 765 genera and nearly 20,000 recognized species, the family is widely dispersed and is the third-largest land plant family in terms of species, trailing only the Orchidaceae and Asteraceae.
A floral formula is a quantitative and symbolic representation that displays the flower's morphological qualities by using various symbols, characters, and figures. It is the traditional approach for forming the structure of the flower. It reveals information on the number of whorls and their relative relationship to one another.
A large angiosperm family is the Fabaceae (pea family). The family is sometimes known as Leguminosae, and the plants are known as legumes. It is found across the planet. Many essential pulses, such as peas, soybeans, chickpeas, and others, are included. A floral formula is a symbolic representation of different floral items, their number, arrangement pattern, and connections. Fabaceae plant Pisum sativum (peas) with the Fabaceae floral formula-
The following symbols represent the Fabaceae floral formula-
|
Symbols |
Details |
|
% |
Plant with zygomorphism (bilateral symmetry). |
|
⚥ |
A plant that is bisexual. |
|
Kâ‚â‚…â‚Ž |
A calyx has five fused sepals, which is why it is called gamosepalous (united). |
|
Câ‚â‚Šâ‚‚â‚Šâ‚â‚‚â‚Ž |
A five-petaled corolla with a posterior standard, two lateral wings, and two anterior wings creates a keel (enclosing stamens and pistils). |
|
Aâ‚₉₎₊₠|
An androecium is made up of ten stamens. They are diadelphous, which means they are partly linked into two structures. |
The floral formula uses these symbols to define the organs and their properties for a certain blooming plant, which is denoted by the letters, and the numbers provide the counts of the individual organs. If an organ is missing, a "0" is placed in the subscript, or the organ symbol is deleted from the formula, and if the number is "many" (between 10 and 12), the symbol " " is used. Another symbol that appears frequently in floral formulas is the "+," which is used to signify groupings of units or whorls.
For Example: To find the expression K3+3in a floral formula, the given calyx has six free sepals and is organized into two separate whorls. Based on these attributes of the symbols, one can get a very good idea about the floral characteristics of any given floral formula. The floral formula is always written in an outside-in format, i.e..,
The following are the systemic position of the floral formula of Fabaceae-
The floral diagram of Fabaceae is provided below based on the floral formula of Fabaceae family-
The five sepals form the calyx, and the five petals form the corolla, which consists of a posterior standard, two lateral wings, two anterior wings forming a keel (enclosing stamens and pistil), the ten stamens fused into two androecium structures, and one superior ovary.
Difference between Spermatogenesis and Oogenesis.
Father of Botany and Father of Zoology.
Thallophyte and Bryophyta.
This family contains some commercially valuable plants. Here are a few examples-
As a result, the Fabaceae family is a large plant kingdom family with a number of commercially significant species. The Fabaceae family is sometimes known as Leguminosae or Papilionaceae since it belongs to the legume or pea family. There are about 20,000 species of dicotyledonous Fabaceae plants found all over the world.
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By - Nikita Parmar 2023-08-25 09:48:44 , 11 min readAns. The Fabaceae family is dominated by flowering legumes and pea plants. Fabaceae is the third-largest flowering plant family, behind Asteraceae (the Aster family) and Orchidaceous (the orchid family). The Fabaceae flowering plant family includes over 18,000 species and 400 genera of blooming leguminous plants. This plant family includes some regularly cultivated species. This plant family includes trees, herbs, vines, and shrubs native to all continents.
Ans. A floral formula is a scientific notation used to describe the floral features of different blooming groups, particularly angiosperms. It is made up of five symbols, arranged from left to right: Floral symmetry consists of the number of sepals, petals, stamens, and carpels.
Ans. Because of its capacity to fix nitrogen, the Fabaceae family is economically feasible for farmers. It helps you save money because fertilizer is less expensive. Farmers employ legumes in crop rotation to replenish nitrogen-depleted soils. When compared to non-legumes and components, this excess nitrogen results in greater protein in seeds and leaves. Furthermore, because the hydraulic lift is a standard characteristic of a few varieties of legumes, it is suitable for plant planting.
Ans. No, the flowers in the Fabaceae family are zygomorphic, which means they have one plane of symmetry rather than the radial symmetry found in actinomorphic flowers. The "%" sign in the floral formula of the Fabaceae family represents this attribute.
Ans. The other name for Fabaceae is Leguminosae.
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