Seashore sowthistle is a yellow-flowered perennial in the daisy family that grows across northern Asia, including Japan, Korea, and China. It is not known to grow wild in the United States, where a plant like this is usually perennial sowthistle, a weed brought from Eurasia.

Appearance

Appearance
An upright, hairless plant that reaches up to about 3 ft (1 m).
Growth form
Perennial that spreads by long underground stems.
Flowers
Clusters of a few bright yellow, dandelion-like heads about 1.2–1.6 in (3–4 cm) across. Each head is made of many strap-shaped and has no central disk.
Fruit
Small brown seeds topped with a tuft of white bristles that catch the wind.

Look-alikes

Perennial sowthistleSonchus arvensis

The two look very much alike. Some botanists once treated seashore sowthistle as a subspecies of perennial sowthistle. In the U.S., a plant like this is usually perennial sowthistle, a weed brought from Eurasia.

Why they get mixed upBoth are tall perennials with large yellow heads that spread by underground stems.

Where it lives

Typical habitats
  • coasts
  • grassy slopes
  • riverbanks
Range
Native to much of northern Asia, including Japan, Korea, China, Russia, Mongolia, and Kazakhstan.

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Seashore Sowthistle (Sonchus brachyotus) — identification, habitat & look-alikes | Moeyo