Difference between revisions of "Mazus pumilus"
Nova Guinea, n. s. 9: 31. 1958.
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|elevation=0–700 m. | |elevation=0–700 m. | ||
|distribution=Ala.;Ark.;Del.;D.C.;Fla.;Ga.;Ill.;La.;Mass.;Miss.;Mo.;N.Y.;N.C.;Ohio;Okla.;Oreg.;Pa.;S.C.;Tenn.;Tex.;Va.;Wash.;W.Va.;Wis.;e Asia;introduced also in Central America;South America;Europe;Africa;Australia. | |distribution=Ala.;Ark.;Del.;D.C.;Fla.;Ga.;Ill.;La.;Mass.;Miss.;Mo.;N.Y.;N.C.;Ohio;Okla.;Oreg.;Pa.;S.C.;Tenn.;Tex.;Va.;Wash.;W.Va.;Wis.;e Asia;introduced also in Central America;South America;Europe;Africa;Australia. | ||
| + | |introduced=true | ||
|discussion=<p>The description and illustration of the type by Burman do not seem to match this species. Steenis examined specimens used by Burman and determined that they are indeed referable to <i>Mazus pumilus</i>; his combination has priority over M. japonicus.</p> | |discussion=<p>The description and illustration of the type by Burman do not seem to match this species. Steenis examined specimens used by Burman and determined that they are indeed referable to <i>Mazus pumilus</i>; his combination has priority over M. japonicus.</p> | ||
|tables= | |tables= | ||
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|publication year=1958 | |publication year=1958 | ||
|special status=Weedy;Introduced;Illustrated | |special status=Weedy;Introduced;Illustrated | ||
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V17/V17_1259.xml |
|genus=Mazus | |genus=Mazus | ||
|species=Mazus pumilus | |species=Mazus pumilus | ||
Latest revision as of 19:27, 5 November 2020
Annuals, 2–20 cm; stolons absent. Stems erect, ascending, or prostrate, sometimes branched near base, hairy. Leaves: basal leaves: petiole 2–13 mm; blade ovate to oblanceolate, 5–30 × 2–15 mm, faces glabrous; cauline leaves: petiole 0–8 mm, ciliate or glabrous; blade obovate to spatulate, 8–30 × 3–20 mm, base long-cuneate, usually ciliate near base, faces glabrous or abaxially hairy along veins, adaxially hairy proximally. Racemes scapose or terminating erect stems, 0.5–12 cm. Pedicels 2–10 mm, hairy or glabrous; bracteoles narrowly triangular, 1–1.5 mm, glabrous. Flowers: calyx 5–7 mm, sparsely hairy, tube 2–3 mm, lobes 3–4 mm; corolla 7–9 mm, tube 4–5 mm, abaxial lobes 3–4 mm, adaxial 2–3 mm. Capsules 2–3 × 1.8–2.2 mm. Seeds 0.4–0.6 × 0.3–0.4 mm. 2n = 40 (Asia).
Phenology: Flowering spring–fall.
Habitat: Lawns, roadsides, stream banks, lakeshores, shady, moist areas.
Elevation: 0–700 m.
Distribution
Introduced; Ala., Ark., Del., D.C., Fla., Ga., Ill., La., Mass., Miss., Mo., N.Y., N.C., Ohio, Okla., Oreg., Pa., S.C., Tenn., Tex., Va., Wash., W.Va., Wis., e Asia, introduced also in Central America, South America, Europe, Africa, Australia.
Discussion
The description and illustration of the type by Burman do not seem to match this species. Steenis examined specimens used by Burman and determined that they are indeed referable to Mazus pumilus; his combination has priority over M. japonicus.
Selected References
None.