Page author: Don Knoke
Impatiens noli-tangere
boreal jewelweed, or western touch-me-not
WTU specimens
Other herbaria

Distribution: Alaska to Oregon, from the coast inland to Idaho.

Habitat: Moist woods.

Flowers: July - September

Origin: Native

Conservation Status: Threatened in Washington (WANHP)

Description:
General:

Glabrous, succulent annual, the stems freely branched, 2-6 cm. tall.

Leaves:

Leaves all alternate, the petioles 2-4 cm. long, the blades elliptic-ovate, 3-12 cm. long, the rounded, serrate teeth tipped with a sharp point.

Flowers:

Flowers in twos, 25-35 mm. long, yellow, spotted or mottled with crimson or reddish-brown; saccate sepal 1-2 cm. long, about half as broad at the orifice, narrowed gradually to the recurved, 6-10 mm. spur; lateral sepals smaller; petals 5, the upper one notched at the tip, the lateral ones much smaller, in unequal pairs.

Fruits:

Capsule 5-celled.

Accepted Name:
Impatiens noli-tangere L.
Publication: Sp. Pl. 2: 938. 1753.

Synonyms & Misapplications:
Impatiens occidentalis Rydb.
Additional Resources:

PNW Herbaria: Specimen records of Impatiens noli-tangere in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Impatiens noli-tangere checklist entry.

E-Flora BC: Impatiens noli-tangere atlas page.

CalPhotos: Impatiens noli-tangere photos.

USDA Plants: Impatiens noli-tangere information.

3 photographs:
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