The Nenjiang River grassland is a Flooded Grasslands and Savannas ecoregion in northeastern China, covering the low wetlands of the lower Nen (Nenjiang) River across the Songhua-Nenjiang plain of Manchuria. Ringed by the Greater Khingan to the north, the Lesser Khingan to the west, and the Changbai Mountains to the south, this poorly drained basin forms a mosaic of seasonally flooded grassland, reed-filled lakes, and river channels, with meadows of grasses and sedges and swampy patches of larch (Larix gmelinii) over a birch (Betula) understory, and reed beds of Phragmites communis lining the lake margins. The climate is humid continental (Köppen Dwa), with hot summers, cold winters, and a spring-and-summer rainy season that sends the river into spate and floods the plain. The wetlands are renowned for cranes, hosting six of the world's fifteen crane species, including the endangered red-crowned crane, the vulnerable white-naped crane, and the critically endangered Siberian crane, with the remaining habitat protected by the Zhalong and Jilin Momoge nature reserves, both Ramsar wetlands of international importance.

At a glance

About the flooded grasslands & savannas biome

Grasslands and savannas subject to seasonal or year-round flooding, including large wetland complexes. Exceptionally productive, they concentrate waterbirds and aquatic life.

Catalog plants suited to this ecoregion

Computed from each plant's stated USDA zone range against this ecoregion's CHELSA-derived current zone range, with the CHELSA mid-century warming delta applied for the projection. Plants whose stated range falls outside both the current and projected zone end up dropped; the rest land in one of the three buckets below.

Collections for this ecoregion

Curated multi-plant collections whose members all fit this ecoregion's zone range — no won't-grow members smuggled in. Overall fit class shown per collection is the weakest link across its members.

Related ecoregions