Around May 1, I saw my dad picking broad beans planted in the field, so I peeled them off to see how cute they were!
Look at the beautiful photos, let's try to understand it!
Hello, my name is fava beans, I believe that we must not be unfamiliar with me, do you remember the language textbook Mr. Lu Xun penned Kong Yijie to the hotel is always "warm two bowls of wine, a dish of fennel beans," will also be domineering the discharge of the nine big money on the table, which is the fennel beans is me, that I am how to become a fennel bean! How did I become a fennel bean? If you are interested, you may want to click in to see Cooking good fennel beans, there are also instructions.
Next talk about my background in the plant world, hey, do not underestimate me Oh! Although I am not very eye-catching, but my family is in the plant world is famous Oh, hurry to cover your ears, I want to introduce myself to the family: the plant world angiosperm family dicotyledonous plant order Rosaceae family legume wild pea genus broad bean. Of course, according to different classification systems, I may have a different identity, the identity of the Chinese botanical records to my classification, for different identities, I do not care, because I am me, is the color of the fireworks, no matter how to classify me is still a lovely love of the little beans!
I am a small fava bean, for you human beings I may be a dish, a kind of leisure snacks, but for my family, I am our family to continue the hope, is our entire race of endless prairie fire.
When you pick me, I still have a layer of coat, this layer of coat is to protect my armor, with this layer of coat I am a complete fruit, this layer of coat is called pericarp, my fruit also has a special name - pods, refers to the development of the fruit by a single carpel, ripe along the dorsal suture line and the ventral suture line crack, pericarp cracking, the fruit is a special name - pods, refers to the development of fruit by a single carpel, along the dorsal suture line and the ventral suture line cracking, pericarp cracking, the fruit is a special name. At maturity, it splits along the dorsal and ventral sutures, splitting the pericarp into two pieces, but of course, some pods do not split, such as peanuts.
And I was called seed, my head has a similar eyebrow of a one, called the seed umbilicus, refers to the maturity of the seed from the seed stalk or the placenta after the scar left behind, which is a bit like the human navel, is that I am from the mother to shed the traces left behind, the role of the seed umbilicus and navel role is similar to the role of the mother is the transportation of nutrients to the offspring of the channel;
in the umbilicus next to the seed hole, called seed holes, is the original ovule, the seed hole, the seed hole, is the original ovule, the seed hole, is the original ovule, the seed hole, is the original ovule, is the original ovule. called seed holes, is the original ovule of the bead hole left traces of the seeds absorb water in the umbilicus a little squeeze, you can find water from this small hole overflow, is the seed germination when absorbing water and the embryonic root out of the site;
I still have a layer of underwear tightly wrapped around me, this layer of clothes called seed coat, they close to protect me, the layer of clothes peeled off, I became naked, the remaining embryo, which embryo and Including the germ, the embryonic axis, the embryonic root, cotyledons, the embryo is very important to me, because with it, I can be like my parents to grow into individual beans, flowers and fruits, to complete their own mission; for me, my cotyledons are very fertile, which stores a lot of nutrients, for seed germination and seedling growth when the use. Some plant seeds also have an endosperm, such as corn, rice and wheat, which provides nutrients for the early growth of the embryo.
Seeds can be categorized according to the presence or absence of endosperm and the number of cotyledons. I belong to the dicotyledonous endospermless seeds, did you notice?
We Leguminosae can be regarded as a large family in the plant world, second only to Asteraceae and Orchidaceae, no matter in the plains, mountains, or deserts, forests, grasslands can be found in the trace of my compatriots, is not it great! I'm super proud to talk about it. And our family has a very famous skill: nitrogen fixation. Our roots can grow with rhizobacteria*** to form rhizomes, which can reduce nitrogen in the air to ammonia for us to utilize, this process is nitrogen fixation. Of course we also provide the rhizobia with some carbohydrates in return. If you're curious about how we work together specifically, take a look at How do rhizobia help plants fix nitrogen?
Because we have this great skill, many times we can be utilized to improve soil fertility and achieve increased yields. One word of warning though, we're not the only plants that can fix nitrogen, but we legumes are definitely a little bit better at it!
After talking about our family's stunts, then talk to you about our family characteristics, tell you how to identify my brothers and sisters, but it should not be too difficult for you, because a lot of our family is known as beans, many plants are dishes on your table, such as me, green beans, cowpeas, string beans, lentils, peas; some of which can be extracted, such as soybean oil, peanut oil; some of which can be used to make soup and desserts, such as soybean oil, peanut oil; some of which can be used to make soup and desserts, such as soybean oil, peanut oil; and some of which can be used to make food and food. can be made into soups and desserts, such as green beans, red beans, black beans and so on; in addition, some of my siblings can be used in medicine, such as kudzu, cassia, astragalus, bitter ginseng and so on; there are also some green ornamental plants, such as acacia, Taiwan acacia, phoenix wood and so on.
We are a large family, according to the symmetry of the flower, and the arrangement of the petals can be divided into three branches, respectively, mimosa subfamily, the subfamily of clouds, butterfly flower subfamily.
Everyone look at my flower, guess which subfamily I am ah?
Smart you must be right!
Pteridophyllum subfamily, you take a close look at my flowers, is not like the wings of a beautiful butterfly, pteridophyllum is the characteristic of our subfamily, compared with the false pteridophyllum of the subfamily of Yunshi, the difference lies in the position of the flag petal, whether it is located in the inner or outer side of the other petals. The flag petal is located outside the petals on both sides of the neighboring petals, called the butterfly corolla; the flag petal is located within the petals on both sides of the neighboring petals, called the pseudo-pterostilbene corolla. You can look at the photo of the pea flower below, our pteridophyte subfamily of flowers are probably this way, divided into five petals: flag petals (1), wing petals (2), keel petals (2), downward imbricate arrangement.
Another characteristic of our subfamily is that most of them are dimorphic stamens, you can look at the photo, we have 10 stamens in total ****, 9 of them are growing together, and there is one lone one growing out alone, like an abandoned child, isn't it a bit miserable.
All right! That's all I have to say today! I don't know if you have listened to me to understand a little bit. We think about it is not all memorized it?
1. Typical structure of seeds
2. Stunts of the legume family
3. Characteristics of the subfamily Pterocarpus
This is the first time I tried to write this article, so please feel free to point out any mistakes in it.
Figure 8 is quoted from NSII, Table 4 Mimosa and Yunsumi photos are quoted from PPBC, rest of the pictures are taken by myself.