May 20, 2022

The Araceae family (Araceae or Araceae) is one of the families that make up the order Sagittaria trifolia. Many prefer a warm and moist environment and grow in wetlands and swamps. It features small flowers (inflorescences of flesh) that are densely packed on the flower axis and bracts that develop around them (buddha bracts). Many of them are important foods such as taro and konjac, but many of them are cultivated to appreciate beautiful leaves and flowers. It was classified in the order Arales in the Melchior system and the Cronquist system.


Araceae plants have great characteristics in their flowers. The flowers themselves are small, inconspicuous even with petals, and may not have petals. Some are divided into male and female flowers, and in any case, the individual flowers are small and inconspicuous. The flowers are lined up on a thick fleshy handle and are called Nikusui inflorescences. Most of the flowers reach the entire spike, but there are also parts without flowers (attachments) at the tip of the spike, which can take various shapes. Bracts come out from the base of the ear. In many Araceae plants, the bracts are not in the shape of simple leaves, but in the shape of wrapping the spikes of flowers, and have a special color and stand out. So to speak, it plays the role of petals. Such bracts are called Buddhist bracts. The bag-shaped part of the Buddhist bract is called the tube part, and the part that extends like a long tongue at the top of the tube part is called the side part. It is considered that the reason for adopting such a structure is that the insects approaching the flower are confined inside to prolong the staying time and increase the probability of pollination. Amorphophallus titanium, a type of konjac from Southeast Asia, is said to be the tallest inflorescence in the world, with the tip of the inflorescence reaching 3 m. . . Araceae plants are exceptional as monocotyledonous plants, with wide leaves, notches, compound leaves, and other complicated shapes, and many of them have reticulated veins. If anything, most of them grow in wet places, and some are wetland or semi-aqueous. In Japan, those with potato-shaped rhizomes are common in the basement, but in the subtropical-tropical zone, they become large vines, some of which grow their roots and stick to the trunk of trees and climb. The subfamily Spirodela and Pistia stratiotes are floating aquatic plants.


Some plants of the Araceae family, including taro (taro taro), are used as staple foods. Especially from Southeast Asia to the Pacific Ocean, potato food culture spreads, and Japan is the northernmost point. Konjac is also processed into food. In addition, some tropical plants have interesting leaf colors and shapes, and various species such as pothos and caladium (hymo) are used as foliage plants. In addition, aquatic and semi-aquatic Anubias, Cryptocoryne, Busefalandra, etc. are also subject to viewing in the aquarium. In Japan, skunk cabbage and skunk cabbage are famous as seasonal flowers in northern Japan, and skunk cabbage appears in songs such as "Summer Memories." Some of the jack-in-the-middles have high ornamental value, and some of them are endangered in the wild. On the other hand, many plants of the Araceae family, including the genus Jack-in-the-Mole, Alocasia odora, and skunk cabbage, contain oxalate such as calcium oxalate in their rhizomes and are toxic plants including foliage plants. Not generally known. Rhizome