The herbarium of the Institute of Water and Ecological Problems, Far Eastern Branch of the Russian Academy of Sciences (Khabarovsk) comprises collections from various years and by various collectors working in the Khabarovsk and Primorsky Krais, the Jewish Autonomous Region, and Amur Oblast. The foundation of the modern herbarium was laid in 1968, simultaneously with the founding of the institute. At that time, field teams traveled to remote areas of the taiga and highlands. As early as 1975–1976, endemic plants from the Geran and Dzhugdzhur highlands appeared in the collections. Some of these were described as species new to science; later, endemic plants from the Badzhal, Sikhote-Alin, and the Zeya, Uda, and Amgun river basins were collected. In the 1990s, due to a detailed study of the central regions of Khabarovsk Krai, the repository was replenished with rare relict species, the majority of which were located on its northern and northeastern borders. In the 2000s–2010s, the herbarium was expanded with collections from the Amur River valley, the basins of its tributaries, and remote and poorly explored territories: the basins of the Ulya, Kur, and Nilan rivers, the coast of the Tatar Strait, etc. The main value of the herbarium is represented by rare and endangered plant species listed in the Red Data Books of the Russian Federation and Khabarovsk Krai, discovered in new areas and locations of Khabarovsk Krai that are not listed in the standard floras. In February 2006, the herbarium was listed in Index Herbariorum under KHA acronym. In January 2025, the database of the Herbarium of the Institute of Water and Ecological Problems became available in the Moscow Digital Herbarium (15,686 specimens), and images are gradually being added to it.