Difference between revisions of "Euphorbia theriaca"
Rhodora 43: 242, plate 660, fig. A. 1941.
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|name=Chamaesyce theriaca | |name=Chamaesyce theriaca | ||
|authority=(L. C. Wheeler) Shinners | |authority=(L. C. Wheeler) Shinners | ||
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}} | }} | ||
|hierarchy=Euphorbiaceae;Euphorbia;Euphorbia sect. Anisophyllum;Euphorbia theriaca | |hierarchy=Euphorbiaceae;Euphorbia;Euphorbia sect. Anisophyllum;Euphorbia theriaca | ||
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| − | |distribution= | + | |distribution=N.Mex.;Tex.;n Mexico. |
|discussion=<p>Varieties 2 (2 in the flora).</p> | |discussion=<p>Varieties 2 (2 in the flora).</p> | ||
|tables= | |tables= | ||
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name=Euphorbia theriaca | name=Euphorbia theriaca | ||
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|authority=L. C. Wheeler | |authority=L. C. Wheeler | ||
|rank=species | |rank=species | ||
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|basionyms= | |basionyms= | ||
|family=Euphorbiaceae | |family=Euphorbiaceae | ||
| − | |distribution= | + | |distribution=N.Mex.;Tex.;n Mexico. |
|reference=None | |reference=None | ||
|publication title=Rhodora | |publication title=Rhodora | ||
|publication year=1941 | |publication year=1941 | ||
|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_424.xml |
|genus=Euphorbia | |genus=Euphorbia | ||
|section=Euphorbia sect. Anisophyllum | |section=Euphorbia sect. Anisophyllum | ||
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| + | [[Category:Euphorbia sect. Anisophyllum]] | ||
| + | [[Category:Revised Since Print]] | ||
Latest revision as of 18:12, 6 November 2020
Herbs, annual, with slender taproot. Stems prostrate to reclining, not mat-forming, 5–30 cm, glabrous. Leaves opposite; stipules usually distinct, occasionally connate basally on lower side of stem, subulate or scalelike, usually entire, occasionally 2-fid or margin sparsely ciliate, 0.4–1 mm, glabrous; petiole 0.7–1.2(–1.5) mm, glabrous; blade ovate, oblong, orbiculate, or obovate, 2–7.1 × 1–3.5 mm, base slightly asymmetric, rounded, margins entire, often revolute on drying, apex usually rounded, occasionally slightly emarginate, surfaces glabrous; venation usually obscure, only midvein conspicuous. Cyathia usually solitary at distal nodes, rarely clustered on short, axillary branches; peduncle 0.3–1.3 mm. Involucre usually turbinate-campanulate to hemispheric, occasionally suburceolate, 1–1.8 × 0.9–1.4 mm, glabrous; glands 4, yellow-green to red-purple, sessile or short-stipitate, subcircular to slightly elliptic, 0.2–0.5 × 0.2–0.7 mm; appendages absent or white to pink, semilunate or forming rim at edge of gland, (0–)0.1–0.4 × (0–)0.3–0.9 mm, entire or slightly crenate. Staminate flowers 15–36. Pistillate flowers: ovary glabrous; styles 0.3–0.5 mm, 2-fid 1/2 length. Capsules broadly ovoid, 1.1–1.6 × 1.5–1.8 mm, glabrous; columella 1.2–1.5 mm. Seeds whitish, reddish brown beneath coat, ovate, 4-angled in cross section, 0.8–1.2 × 0.5–0.8 mm, with (2–)3(–5) deep transverse ridges. 2n = 28.
Distribution
N.Mex., Tex., n Mexico.
Discussion
Varieties 2 (2 in the flora).
Selected References
None.
Key
| 1 | Involucral glands sessile, appendages absent. | Euphorbia theriaca var. theriaca |
| 1 | Involucral glands short-stipitate, appendages present, occasionally rudimentary. | Euphorbia theriaca var. spurca |