UW Burke Herbarium species comparison

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Urtica urens

Urtica chamaedryoides

burning nettle
Habit Taprooted annual 1-5 dm. tall, more or less pubescent and strongly stinging-bristly.
Leaves

Leaves opposite, petiolate, the blades elliptic to ovate or obovate, 1.5-4 cm. long, becoming larger upward, coarsely and deeply serrate;

petioles on lower leaves are longer than their blades;

stipules 2-3 mm. long.

Flowers

Flowers in axillary clusters much shorter than the leaves, greenish, apetalous and imperfect; pistillate and staminate flowers mixed in the clusters, the pistillate larger, 1-2 mm. long, with 4 unequal calyx lobes and 1-celled pistil; staminate flowers with 4 stamens.

Fruits

Achene

Urtica urens

Urtica chamaedryoides
Flowering time June-July
Habitat Moist, disturbed soil.
Distribution
Introduced sparsely in western Washington; distributed throughout much of North America except parts of the Midwest and Intermountain West.
[WildflowerSearch map]
[BONAP county map]
[WildflowerSearch map]
[BONAP county map]
Origin Introduced from Europe
Conservation status Not of concern
Sibling taxa
U. dioica
U. dioica, U. urens
Web links 
Unless otherwise noted, all data comes from the University of Washington's Burke Herbarium.



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(If the plant you're looking for doesn't show up in the auto-complete list, that means it either isn't described in UW Burke Herbarium yet, or it's listed under a synonym.)

Choose a data source: Flora of North America, OregonFlora, UW Burke Herbarium

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