Difference between revisions of "Euphorbia peplidion"
in W. H. Emory, Rep. U.S. Mex. Bound. 2(1): 191. 1859.
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|accepted_name=Euphorbia peplidion | |accepted_name=Euphorbia peplidion | ||
| − | |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): 191. 1859 | |place=2(1): 191. 1859 | ||
|year=1859 | |year=1859 | ||
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name=Euphorbia peplidion | name=Euphorbia peplidion | ||
| − | |authority=Engelmann | + | |authority=Engelmann |
|rank=species | |rank=species | ||
|parent rank=subgenus | |parent rank=subgenus | ||
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|distribution=Tex. | |distribution=Tex. | ||
|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=Endemic | |special status=Endemic | ||
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V12/V12_231.xml |
|genus=Euphorbia | |genus=Euphorbia | ||
|subgenus=Euphorbia subg. Esula | |subgenus=Euphorbia subg. Esula | ||
Latest revision as of 19:14, 5 November 2020
Herbs, annual, with taproot. Stems erect, unbranched or branched, 5–20 cm, glabrous. Leaves: petiole 0–0.2 mm; blade linear-oblanceolate to cuneate-spatulate, 5–20 × 1–4 mm, base attenuate, margins entire, apex rounded to obtuse, surfaces glabrous; venation inconspicuously pinnate, midvein prominent. Cyathial arrangement: terminal pleiochasial branches 3(–5), 1–3 times 2-branched; pleiochasial bracts linear, lanceolate, or spatulate, similar in size to distal leaves; dichasial bracts distinct, rhomboid-lanceolate to ovate, falcate, base rounded to obtuse, margins entire or slightly erose, apex acute; axillary cymose branches 0–3. Cyathia: peduncle 0.3–0.5 mm. Involucre broadly campanulate-turbinate, 0.8–1 × 0.6–0.9 mm, glabrous; glands 4, elliptic, 0.2–0.3 × 0.5–0.6 mm; horns divergent, 0.4–0.5 mm. Staminate flowers 5–10. Pistillate flowers: ovary glabrous; styles 0.5–0.7 mm, 2-fid. Capsules depressed-globose, 1.8–2.3 × 2.6–3 mm, 3-lobed; cocci slightly flattened, without wings, smooth, glabrous; columella 1.3–1.5 mm. Seeds gray to brown, oblong, 1.3–1.6 × 0.9–1.1 mm, abaxial faces irregularly large-pitted, adaxial faces longitudinally sulcate; caruncle flat, umbonate, 2-lobed, 0.4 × 0.7 mm.
Phenology: Flowering and fruiting late winter–spring.
Habitat: Dry, sandy areas, open areas with poor soils, roadsides, stream banks.
Elevation: 100–300 m.
Discussion
Euphorbia peplidion is native to central and south-central Texas.
Selected References
None.