Orange jewelweed	Status LU: casual 1st record: 2021, ITW 2021.
	Oranget Sprangkraut	Status Eur.: n/a. 1st record: unkn.
	Impatiente du Cap	RA: ISEIA: n/a Harmonia+: n/a
	Orangerotes Springkraut	Wikipedia: | Wikispecies:
	Oranje springzaad	Back to the list of neophytes

Report the species

→ Report Impatiens capensis to the National Museum of Natural History.

Brief description

Impatiens capensis Meerb., common names: orange jewelweed, common jewelweed, spotted jewelweed, spotted touch-me-not or orange balsam, is an annual plant which is native to North America. It is common in bottomland soils, ditches, and along creeks. Jewelweed is an herbaceous plant that grows 1 to 1,5 meters tall and blooms from late spring to early fall. The flowers are orange (sometimes blood orange or rarely yellow) with a three-lobed corolla. It often branches extensively. The round stems are smooth and succulent and semi-translucent, with swollen or darkened nodes on some plants. The leaves are alternate and simple and have teeth on the margins. Impatiens capensis was transported in the 19th and 20th centuries to England, France, the Netherlands, Poland, Sweden, Finland, and potentially other areas of northern and central Europe. This jewelweed species is quite similar to Impatiens noli-tangere, an impatiens species native to Europe and Asia (Wikipedia contributors 2022).

Status and distribution in Luxembourg

The first documented observation of the species in Luxembourg was made by Carlo Braunert in October 2021 on the banks of the Moselle river in Machtum – Deisermillen (Krippel & Helminger 2022).

Risk assessment

ISEIA protocol

Not assessed yet.

Harmonia+ protocol

Not assessed yet.

Worldwide distribution

Bibliography

• Krippel, Y. & T. Helminger, 2022. Notes floristiques. Observations faites au Luxembourg (2020-2021). Bulletin de la Société des naturalistes luxembourgeois 124: 191-222. [PDF 2,7 MB]
• Wikipedia contributors, 2022. ‘Impatiens capensis’, Wikipedia, The Free Encyclopedia, 3 September 2022, 1:50 UTC, <https://en.wikipedia.org/wiki/Impatiens_capensis> [accessed 2022-09-13]