How many kinds of plants are there in the famous sentences in The Book of Songs?

"Sword armor" is actually two kinds of plants. Sword armor is a water chestnut without long spikes, and Jia Jia is a new reed. Reed is a tall grass in Gramineae, which can grow to a height of about 8 meters. Most of them grow in wet environments such as waterside and swamps, and some strains can tolerate salt and alkali.

Thistle grows mostly at the water's edge below 60 meters above sea level and on lower slopes. It is amphibious and can only grow to about 2 meters at the highest. 80% of the "reeds" we usually see on land are "glutinous rice".

The most obvious difference between the two lies in flowers. Generally speaking, the' hair' on the whole inflorescence of reed is rough and shapeless, just like a boy's hair; And the hair on bougainvillea is soft, like a girl's ponytail.

The difference between reed and water chestnut.

Reed: Gramineae reed is a perennial herb with well-developed grape rhizomes and hollow and smooth stems; The leaves are needle-shaped and arranged in two rows; Panicle slightly bent downward, with white pilose between branches; The fruit is lanceolate; The flowering period is in July; The fruiting period is from August to165438+1October.

Di: also known as Gangchai, is a perennial herb. Growing near the water and on low slopes, it is amphibious, waterlogging-resistant and drought-resistant. Leaves are very long, like reeds, and purple flowers bloom in autumn.