Impatiens namchabarwensis (Blue Diamond Impatiens) is a 40–50 cm tall perennial plant

Perennial plant

A perennial plant or simply perennial is a plant that lives for more than two years. The term is often used to differentiate a plant from shorter lived annuals and biennials. The term is sometimes misused by commercial gardeners or horticulturalists to describe only herbaceous perennials...

, native to the Himalaya, overwintering by a thick fleshy rootstock.
This new species was discovered in the Namcha Barwa

Namcha Barwa

Namjagbarwa Peak , also known as Namcha Barwa, Namchabarwa, or Nanjiabawa Feng, is a mountain in the Tibetan Himalaya. The traditional definition of the Himalaya extending from the Indus River to the Brahmaputra would make it the eastern anchor of the entire mountain chain, and it is the highest...

 canyon in Tibet

Tibet

Tibet is a plateau region in Asia, north-east of the Himalayas. It is the traditional homeland of the Tibetan people as well as some other ethnic groups such as Monpas, Qiang, and Lhobas, and is now also inhabited by considerable numbers of Han and Hui people...

 in the summer of 2003 by Yuan Yong-Ming and Ge Xue-Jun.

It was growing at an altitude of 930 m in a very limited area.

Stems are much branched, slightly woody at base; lower stems decumbent, often rooting at nodes.

Flowers are bright ultramarine blue, with small white markings at center and yellow in throat.

It has explosive seedpods, like the other species of the Balsaminaceae

Balsaminaceae

Balsaminaceae are a family of dicotyledonous plants, comprising two genera and 850+ species, all but one of which belong to the genus Impatiens...

family. Seeds are brown when ripe, ca. 1 mm.
The scientific name is sometimes misspelled as "Impatiens namchabawensis".