EVERGREEN

Plant Encyclopedia

Sonchus oleraceus

Sonchus oleraceus (common sowthistle, "Nogeshi")

Japanese name: ノゲシ (野芥子)
Scientific name: Sonchus oleraceus

Sonchus oleraceus

[Overview]
A winter annual 50–100 cm tall, found in vacant lots, roadsides and similar places.
White milky sap comes out when the stem or leaves are damaged.
The stem is thick, soft, hollow and ridged.
There are basal leaves and stem leaves.
The basal leaves are irregularly pinnately cut.
The stem leaves are alternate, with the base projecting in a pointed, ear-like shape that clasps the stem.
The lower the leaf on the stem, the deeper and more irregular the cuts.
The upper part of the stem branches and bears yellow to cream-colored flower heads about 2 cm across.
The flower stalks sometimes have glandular hairs.
The main flowering season is April–July, but plants can be seen in bloom all year round.
The fruit is an achene with a white pappus.

[History]
It is thought to have become naturalized in Japan from China in ancient times.

[Uses]
The whole plant is used medicinally.
Young seedlings are bitter but edible.

Details

Names
English: common sowthistle, sow thistle, smooth sow thistle, annual sow thistle, hare's colwort, hare's thistle, milky tassel, milk thistle, soft thistle, swinies
Japanese: ノゲシ(野芥子)、ハルノノゲシ(春野芥子)、ケシアザミ(芥子薊)、アイノゲシ
Life form
Winter annual
Habit
Terrestrial
Flowering season
April, May, June, July
Distribution or origin
Europe
Height
500–1000 mm
Leaf shape
Simple leaf (unlobed), Lobed leaf
Leaf arrangement
Alternate, Basal
Flower color
Yellow, Yellowish white
Flower diameter
20
Leaf color
Green

Translated from our Japanese encyclopedia. If anything differs, the Japanese page is correct.

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