Difference between revisions of "Urtica dioica"
Sp. Pl. 2: 984. 1753.
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| − | --><span class="statement" id="st- | + | --><span class="statement" id="st-undefined" data-properties=""><b>Herbs,</b> perennial, rhizomatous, 5-30 dm. <b>Stems</b> simple or branched, erect or sprawling. <b>Leaf</b> blades elliptic, lanceolate, or narrowly to broadly ovate, 6-20 × 2-13 cm, base rounded to cordate, margins coarsely serrate, sometimes doubly serrate, apex acute or acuminate; cystoliths rounded. <b>Inflorescences</b> paniculate, pedunculate, elongate. <b>Flowers</b> unisexual, staminate and pistillate on same or different plants, staminate ascending, the pistillate lax or recurved. <b>Pistillate</b> flowers: outer tepals linear to narrowly spatulate or lanceolate, 0.8-1.2 mm, inner tepals ovate to broadly ovate, 1.4-1.8 × 1.1-1.3 mm. <b>Achenes</b> ovoid to broadly ovoid, 1-1.3(-1.4) × 0.7-0.9 mm.</span><!-- |
-->{{Treatment/Body | -->{{Treatment/Body | ||
| − | |distribution=North America;Mexico;Eurasia | + | |distribution=North America;Mexico;Eurasia. |
|discussion=<p>Subspecies 3 (3 in the flora).</p> | |discussion=<p>Subspecies 3 (3 in the flora).</p> | ||
|tables= | |tables= | ||
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|basionyms= | |basionyms= | ||
|family=Urticaceae | |family=Urticaceae | ||
| − | |distribution=North America;Mexico;Eurasia | + | |distribution=North America;Mexico;Eurasia. |
|reference=None | |reference=None | ||
|publication title=Sp. Pl. | |publication title=Sp. Pl. | ||
|publication year=1753 | |publication year=1753 | ||
|special status=Weedy | |special status=Weedy | ||
| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna- | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V3/V3_737.xml |
|genus=Urtica | |genus=Urtica | ||
|species=Urtica dioica | |species=Urtica dioica | ||
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-->[[Category:Treatment]][[Category:Urtica]] | -->[[Category:Treatment]][[Category:Urtica]] | ||
Revision as of 14:48, 27 July 2019
Herbs, perennial, rhizomatous, 5-30 dm. Stems simple or branched, erect or sprawling. Leaf blades elliptic, lanceolate, or narrowly to broadly ovate, 6-20 × 2-13 cm, base rounded to cordate, margins coarsely serrate, sometimes doubly serrate, apex acute or acuminate; cystoliths rounded. Inflorescences paniculate, pedunculate, elongate. Flowers unisexual, staminate and pistillate on same or different plants, staminate ascending, the pistillate lax or recurved. Pistillate flowers: outer tepals linear to narrowly spatulate or lanceolate, 0.8-1.2 mm, inner tepals ovate to broadly ovate, 1.4-1.8 × 1.1-1.3 mm. Achenes ovoid to broadly ovoid, 1-1.3(-1.4) × 0.7-0.9 mm.
Distribution
North America, Mexico, Eurasia.
Discussion
Subspecies 3 (3 in the flora).
Selected References
None.
Lower Taxa
Key
| 1 | Plants unisexual, staminate and pistillate flowers on different plants; leaf blades abaxially hispid, both surfaces with stinging hairs. | Urtica dioica subsp. dioica |
| 1 | Plants unisexual, staminate and pistillate flowers mostly on same plants; leaf blades abaxially bearing stinging hairs, otherwise glabrous, puberulent, or tomentose and moderately strigose, adaxially without (rarely with a few) stinging hairs. | > 2 |
| 2 | Stems glabrous or strigose, with a few stinging hairs; leaf blades abaxially glabrous or puberulent. | Urtica dioica subsp. gracilis |
| 2 | Stems softly pubescent, also with stinging hairs; leaf blades abaxially tomentose to moderately strigose. | Urtica dioica subsp. holosericea |