Arrowhead Cereal (Sagittaria Graminea)

Arrowhead Cereal (Sagittaria Graminea)
Arrowhead Cereal (Sagittaria Graminea)

Video: Arrowhead Cereal (Sagittaria Graminea)

Отличия серверных жестких дисков от десктопных
Video: травянистый наконечник стрелы / тонкий наконечник стрелы (Sagittaria graminea) 2023, February
Anonim

The Chinese Arrowhead (Grassy Arrowhead) is native to eastern North America. Known in all Canadian provinces from Ontario to Newfoundland, as well as in all states of the United States (from the Great Plains to the Atlantic), plus Colorado, New Mexico and Cuba. In our country it is often called japonica (in Japan it is an invasive species). A plant with a short tuberous rhizome.

Arrowhead cereal grows in wet areas such as swamps and the banks of rivers and lakes. It is a perennial plant up to 100 cm high with long linear herbaceous leaves. Leaves growing in water have a ribbon-like shape, and above-water leaves on long petioles have the shape of a lancet and measure up to 25 cm in length and up to 4 cm in width. Propagated by seeds and ground shoots, undemanding to the conditions of detention, it can grow for years in an aquarium without the formation of emergent leaves. The color of the leaves is light green, in the upper part there are two lateral and one central veins.

Arrowhead cereal grows well at a water temperature of 25-27 ° C, but withstands a decrease to 16 ° C, hardness dH 4-18 °, acidity pH 5.5-8.0. Lighting is required strong or medium (8-10 hours a day).

Arrowhead cereal (Sagittaria graminea), photo photography aquarium aquatic plants
Arrowhead cereal (Sagittaria graminea), photo photography aquarium aquatic plants

May bloom in sunlight. The flowers are collected in a carpal inflorescence and rise above the water. Arrowhead includes several dozen species growing along the banks of water bodies. Under acceptable conditions, the arrowhead grows throughout the year.

For the aquarium, only young plants are suitable, which are planted in groups in the middle of the aquarium, strengthening the roots in the ground with small stones. Since the plant does not tolerate water from the fine suspended matter contained in it, increased water filtration is required, as well as a weekly change of up to 25% of the water from the aquarium volume. It is desirable to use silted coarse river sand or fine gravel as a soil. The layer thickness of which should be at least 5 cm. Periodic fertilizing with mineral fertilizers is required.

Three species are found in our country. Many species are difficult to cultivate in an aquarium due to the tendency of plants to form emergent leaves. Despite this, about 10 varieties of arrowhead are used in aquariums. The conditions of keeping and breeding for all types of arrowhead are similar.

Popular by topic