What plants do red beans refer to in When those red berries come in spring?

When the red berries come in spring, the red beans are acacia, also called acacia.

Red beans, chicken mother beads, beauty beans, acacia beans, red bamboo, Bajiangshan coral, black-headed chicken, etc. Red beans are acacia plants in Leguminosae.

develop

Acacia is a vine. The stems are thin and branched, rusty and sparsely white and strigose. Pinnate compound leaves; Leaflets 8- 13 pairs, membranous, opposite, nearly oblong, 1-2 cm long, 0.4-0.8 cm wide, truncated at the top, small at the top, nearly round at the base, hairless on the top and sparse white and rough on the bottom; Petiole is short.

Racemes axillary, 3-8 cm long; Inflorescence axis thick and short; Flowers are small, dense and head-shaped; Calyx bell-shaped, calyx teeth 4-lobed, thick white; Corolla purple, flag handle triangular, wing flap and dragon bone flap narrower; Stamens 9; The ovary is hairy.

Pods are oblong, with leathery petals, 2-3.5cm long and 0.5-1.5cm wide, which are dehiscent at maturity and have 2-6 seeds; The seeds are oval, smooth and shiny, with about two-thirds bright red on the upper part and about one-third black on the lower part. The flowering period is from March to June, and the fruiting period is from September to June.

Red beans like light, deep roots, tough wood and strong wind resistance. The root system is developed and has nodules, which can fix free nitrogen in the atmosphere. Germination is vigorous and growth is rapid. The requirements for soil are not strict, drought-resistant and barren, and there are few pests and diseases. It is a positive plant and likes strong light. The suitable growth temperature is 23-30℃, and the growth is fast. Heat-resistant, drought-resistant, barren-resistant, acid-resistant, shear-resistant, wind-resistant and pollution-resistant, and trees are not easy to transplant.

I like to grow in the open and sunny riverside, seaside, forest edge or wasteland. The growth is very vigorous, and if it is not controlled, it can even crowd out the living space of other plants and become the master of one party.

Sophora japonica beans, leaves, roots and seeds are poisonous, and seeds are the most poisonous. Poisoning symptoms: loss of appetite, nausea, vomiting, abdominal pain, diarrhea, dyspnea, blue skin, circulatory system failure and oliguria, and finally hemolysis, hematuria, and gradual respiratory asphyxia. Rescue method: induce vomiting or gastric lavage, then catharsis, inject normal saline or 5% glucose saline; In order to prevent heme or its products from precipitating in the kidney, 5- 15g baking soda can be taken every day.

The seeds of acacia are hard in texture, bright in color and persistent in red. They can be used as decorations, but they are very toxic.

External use to treat dermatoses; Medicinal roots and vines can clear away heat and toxic materials and induce diuresis.

According to legend, during the Han Dynasty, there was a man in the state of Fujian and Yue who was forced to guard the border, and his wife was looking forward to coming back all day. Later, everyone who went with him came back. His husband didn't come back, and his wife missed him more. He stood under the cross tree in front of the village all day, looking forward to dusk and crying his eyes out. The tree suddenly bears pods, and the seeds of the pods are half red and half black, glittering and translucent. People condense the blood and tears of loyal wives, which are called "red beans" and "acacia".

Wang Weiyou, a poet in the Tang Dynasty, wrote a poem: "Red plums come in spring, and they are all over the southern branches. For me, take a hug home as a symbol of our love. " Poets express their love for each other through stories, which are euphemistic and implicit, and have become famous sentences that have been passed down through the ages.