"Artemisia vulgaris" is the name of a kind of grass, including Artemisia annua and Artemisia alba.

Source: Song Su Shi "Two Songs on the Evening Scene of Spring River in Huichong"

Original Poem:

Three or two branches of peach blossoms outside the bamboo, the ducks are the first to know the warmth of the water in the spring river.

The artemisia vulgaris is full of reed buds, and it is the time when the river dolphin wants to go up.

Translation:

Beyond the bamboo forest, two or three branches of peach blossoms are blossoming, and the ducks are playing in the water, and they are the first to notice the warmth of the river in early spring. The river bank is already full of Artemisia vulgaris, and the reeds are beginning to bud, while the river dolphins are just now about to swim back upstream from the sea into the river.

Extended information:

This is a poem of the title painting. The poem reproduces the mid-spring scenery of Jiangnan in the original painting, and incorporates reasonable imagination to complement the original painting. Outside the bamboo forest, three or two branches of peach blossoms have bloomed, with a few pinks sprinkled in the emerald green, presenting a visual beauty of color; the river is warming up in spring, and the first to know must be the ducks in the river. The bamboo forest and peach blossoms are the scenery of the riverbank; the ducks are the scenery in the river, a rich picture.

"The warmth of the spring river" is expressed by "ducks", which reproduces the warmth of spring through tactile depiction, and flexibly expresses the content that cannot be expressed in the picture, which is both real and unreal, and is vivid and full of the flavor of life. It creates a more complete and richer artistic realm than the painting realm.