Difference between revisions of "Euphorbia trachysperma"
in W. H. Emory, Rep. U.S. Mex. Bound. 2(1): 189. 1859.
FNA>Volume Importer |
imported>Volume Importer |
||
| (4 intermediate revisions by 2 users not shown) | |||
| Line 1: | Line 1: | ||
{{Treatment/ID | {{Treatment/ID | ||
|accepted_name=Euphorbia trachysperma | |accepted_name=Euphorbia trachysperma | ||
| − | |accepted_authority=Engelmann | + | |accepted_authority=Engelmann |
|publications={{Treatment/Publication | |publications={{Treatment/Publication | ||
| − | |title=Rep. U.S. Mex. Bound. | + | |title=in W. H. Emory, Rep. U.S. Mex. Bound. |
|place=2(1): 189. 1859 | |place=2(1): 189. 1859 | ||
|year=1859 | |year=1859 | ||
| Line 12: | Line 12: | ||
|name=Chamaesyce trachysperma | |name=Chamaesyce trachysperma | ||
|authority=(Engelmann) Millspaugh | |authority=(Engelmann) Millspaugh | ||
| + | |rank=species | ||
}} | }} | ||
|hierarchy=Euphorbiaceae;Euphorbia;Euphorbia sect. Anisophyllum;Euphorbia trachysperma | |hierarchy=Euphorbiaceae;Euphorbia;Euphorbia sect. Anisophyllum;Euphorbia trachysperma | ||
| Line 36: | Line 37: | ||
-->{{#Taxon: | -->{{#Taxon: | ||
name=Euphorbia trachysperma | name=Euphorbia trachysperma | ||
| − | + | |authority=Engelmann | |
| − | |authority=Engelmann | ||
|rank=species | |rank=species | ||
|parent rank=section | |parent rank=section | ||
| Line 48: | Line 48: | ||
|distribution=Ariz.;Mexico (Baja California Sur;Sonora). | |distribution=Ariz.;Mexico (Baja California Sur;Sonora). | ||
|reference=None | |reference=None | ||
| − | |publication title=Rep. U.S. Mex. Bound. | + | |publication title=in W. H. Emory, Rep. U.S. Mex. Bound. |
|publication year=1859 | |publication year=1859 | ||
|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_85.xml |
|genus=Euphorbia | |genus=Euphorbia | ||
|section=Euphorbia sect. Anisophyllum | |section=Euphorbia sect. Anisophyllum | ||
Latest revision as of 19:18, 5 November 2020
Herbs, annual, with slender taproot. Stems erect to ascending, 10–55 cm, glabrous. Leaves opposite; stipules distinct, narrowly triangular and often divided into 3–5 subulate to filiform segments, 0.8–1.9 mm, glabrous; petiole 1.2–3.1 mm, glabrous; blade oblong, elliptic, or ovate, 12–43 × 3–14 mm, base subsymmetric to asymmetric, rounded, attenuate, or with one side hemicordate and other side rounded, margins usually serrulate, rarely entire on some leaves or portion of blade, apex obtuse to acute, surfaces often with red blotch in center, glabrous; pinnately veined, often only midvein conspicuous. Cyathia solitary at distal nodes; peduncle 1.4–2.4 mm. Involucre oblong, campanulate, or funnel-shaped, 1.5–2.6 × 1.1–2.3 mm, glabrous; glands 4, green to yellowish or tinged with red, subcircular to oblong, 0.4–0.7 × 0.5–1 mm; appendages absent or white, often forming narrow rim or oblong to ovate, 0–0.8 × 1.2 mm, distal margin entire. Staminate flowers 50–60. Pistillate flowers: ovary glabrous; styles 0.5–0.6 mm, 2-fid 1/2 length. Capsules oblate, 2.4–3.2 × 3–3.5 mm, glabrous; columella 2.3–2.5 mm. Seeds light brown, ovoid, 4-angled in cross section, abaxial keel well developed, 1.9–2.3 × 1.3–1.4 mm, finely dimpled and papillate.
Phenology: Flowering and fruiting late summer–early winter.
Habitat: Desert scrub, desert grasslands, mesquite woodlands.
Elevation: 200–1200 m.
Distribution
Ariz., Mexico (Baja California Sur, Sonora).
Discussion
Euphorbia trachysperma may be expected in extreme southwestern New Mexico given the close proximity of some collections in southeastern Arizona.
Selected References
None.