Mongolian clearweed is a small, soft-stemmed annual in the nettle family from East Asia. It grows in damp, shady places in Korea, Japan, China, and eastern Siberia, and is not a wild plant of the United States.

Appearance

Growth form
An annual about 12–20 in (30–50 cm) tall with upright, watery, light green stems and no hairs.
Leaves
Opposite, pointed leaves 1–4 in (2–10 cm) long with coarse triangular teeth.

Look-alikes

Canada clearweedPilea pumila

Location is the practical clue: wild clearweed in the United States is Canada clearweed or another American species, while Mongolian clearweed is an East Asian plant.

Why they get mixed upThe two are so similar that some botanists treat them as a single species.

Where it lives

Typical habitats
  • shady wetlands
  • damp ground
Range
Native to China, Korea, eastern Siberia, and Japan. It is not native to North America, where its close relative Canada clearweed grows instead.
Preferred conditions
Moist, shady sites.

Conservation

IUCN Red List
NENot EvaluatedNot yet assessed

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Mongolian Clearweed (Pilea mongolica) — identification, habitat & look-alikes | Moeyo