Difference between revisions of "Argythamnia serrata"
Linnaea 34: 147. 1865. (as Argyrothamnia)
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|place=34: 147. 1865 | |place=34: 147. 1865 | ||
|year=1865 | |year=1865 | ||
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|common_names=Yuma or New Mexico silverbush | |common_names=Yuma or New Mexico silverbush | ||
|basionyms={{Treatment/ID/Basionym | |basionyms={{Treatment/ID/Basionym | ||
|name=Aphora serrata | |name=Aphora serrata | ||
| − | |authority=Torrey | + | |authority=Torrey |
|rank=species | |rank=species | ||
| − | |publication_title=Rep. U.S. Mex. Bound. | + | |publication_title=in W. H. Emory, Rep. U.S. Mex. Bound. |
|publication_place=2(1): 197. 1859 | |publication_place=2(1): 197. 1859 | ||
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|publication year=1865 | |publication year=1865 | ||
|special status= | |special status= | ||
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V12/V12_71.xml |
|genus=Argythamnia | |genus=Argythamnia | ||
|species=Argythamnia serrata | |species=Argythamnia serrata | ||
Latest revision as of 19:17, 5 November 2020
Herbs, annual or perennial, monoecious, to 5 dm. Stems erect or prostrate, usually densely to sparsely hairy, rarely glabrous, hairs malpighiaceous. Leaves: stipules deciduous, ovate, lanceolate to subulate, 0.5–2.3 mm, margins not glandular; petiole 1–10 mm; blade elliptic to ovate, obovate, or narrowly lanceolate, 1–10.5 × 0.2–3 cm, margins serrate, serrulate, or entire, without glands, surfaces usually densely to sparsely hairy, rarely glabrous, hairs malpighiaceous. Inflorescences bisexual, 0.4–1.5 cm; bracts ovate to elliptic, 0.8–2 mm, margins without glands. Flowers without pink dye when wetted. Staminate flowers: sepals lanceolate, 0.9–2.5 × 0.4–1.4 mm; petals elliptic to obovate, 1.5–3.5 × 0.6–2 mm, free from androphore; nectary glands elliptic to oblate, 0.3–0.5 × 0.1–0.2 mm, free from androphore, glabrous; stamens 10, staminodes 0 or 3–5, glabrous. Pistillate flowers: sepals lanceolate to elliptic, 2.3–6.5 × 0.6–1.6 mm, without glands; petals 5, elliptic, 0.7–3 × 0.4–1.6 mm; nectary glands elliptic, 0.4–0.6 × 0.3–0.4 mm, glabrous; ovary sericeous, strigose, or hispidulous; styles 1–1.8 mm, glabrous; stigmas terete. Capsules 1.8–4.5 mm, strigose-hispidulous. Seeds 1.5–2.4 mm, smooth, punctate, striate, or reticulate. 2n = 26 (Baja California Sur, Mexico).
Phenology: Flowering year-round.
Habitat: Desert scrub, sandy, rocky, calcareous soils.
Elevation: 0–1600 m.
Distribution
Ariz., Calif., Nev., N.Mex., Tex., Mexico, Central America (Guatemala, Nicaragua).
Discussion
Argythamnia serrata is widely distributed and variable; six species have been described to recognize this variation. However, these groups overlap morphologically and geographically, and many specimens cannot be determined with confidence. A broadly defined A. serrata is therefore recognized here.
Selected References
None.