jewelweed

… I. hypophylla Makino, which resembles Impatiens but whose inflorescence does not protrude from the leaves and whose flowers are hidden under the leaves, is found in central and west Honshu, while I. nolitangere L. (English name: touch-me-not), which is slightly taller and has yellow flowers, is widely distributed in the temperate zone of the Northern Hemisphere and can be found throughout Japan. The Impatiens genus (English names: touch-me-not, balsam, jewelweed) has about 500 species, mainly found in the tropical regions of Asia and Africa, and shows a great variety of variations in seed shape, seedling form, ovary structure, chromosome number, etc. Only three species grow wild in Japan, but highly improved horticultural plants such as Impatiens balsam and Impatiens balsam are also cultivated. …

*Some of the terminology that mentions "jewelweed" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…　ツリフネソウに似るが，花序が葉よりつき出さず，花は葉下に隠れるハガクレツリフネI.hypophylla Makinoは本州中部以西に，また草丈がやや高く，花は黄色のキツリフネI.nolitangere L.(英名touch‐me‐not)は北半球温帯に広く分布し，日本各地にある。　ツリフネソウ属Impatiens(英名touch‐me‐not,balsam,jewelweed)はアジア，アフリカの熱帯を中心に500種ほどあり，種子の形，実生の形態，子房の構造，染色体数など，きわめて多彩な変化がみられる。日本には3種が自生するにすぎないが，ホウセンカ，アフリカホウセンカ(インパチエンス)などの品種改良の進んだ園芸植物も栽培される。…

※「jewelweed」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報