Difference between revisions of "Plantago ovata"
Fl. Aegypt.-Arab., 31. 1775.
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|name=Plantago insularis | |name=Plantago insularis | ||
|authority=Eastwood | |authority=Eastwood | ||
| − | }}{{Treatment/ID/Synonym | + | }} {{Treatment/ID/Synonym |
|name=P. insularis var. fastigiata | |name=P. insularis var. fastigiata | ||
|authority=(E. Morris) Jepson | |authority=(E. Morris) Jepson | ||
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|elevation=0–1800 m. | |elevation=0–1800 m. | ||
|distribution=Ariz.;Calif.;Nev.;Tex.;Utah;Mexico (Baja California;Sonora);Eurasia;Africa. | |distribution=Ariz.;Calif.;Nev.;Tex.;Utah;Mexico (Baja California;Sonora);Eurasia;Africa. | ||
| − | |discussion=<p>From molecular evidence, S. C. Meyers and A. Liston (2008) suggested that Plantago ovata was introduced to North America during the Pleistocene. They recognized four varieties; North American specimens can be treated as two varieties based on bract and corolla color: the inland var. fastigiata (E. Morris) S. C. Meyers & Liston (midribs of mature flower bracts green, corolla lobes without reddish brown midribs) and the coastal var. insularis (Eastwood) S. C. Meyers & Liston (midribs of mature flower bracts brown, corolla lobe midribs prominent, reddish brown). Unfortunately, these features are not easily seen on many herbarium specimens, and these taxa are not recognized here.</p> | + | |discussion=<p>From molecular evidence, S. C. Meyers and A. Liston (2008) suggested that <i>Plantago ovata</i> was introduced to North America during the Pleistocene. They recognized four varieties; North American specimens can be treated as two varieties based on bract and corolla color: the inland <i></i>var.<i> fastigiata</i> (E. Morris) S. C. Meyers & Liston (midribs of mature flower bracts green, corolla lobes without reddish brown midribs) and the coastal <i></i>var.<i> insularis</i> (Eastwood) S. C. Meyers & Liston (midribs of mature flower bracts brown, corolla lobe midribs prominent, reddish brown). Unfortunately, these features are not easily seen on many herbarium specimens, and these taxa are not recognized here.</p> |
|tables= | |tables= | ||
|references={{Treatment/Reference | |references={{Treatment/Reference | ||
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|publication year=1775 | |publication year=1775 | ||
|special status=Selected by author to be illustrated | |special status=Selected by author to be illustrated | ||
| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V17/V17_700.xml |
|genus=Plantago | |genus=Plantago | ||
|species=Plantago ovata | |species=Plantago ovata | ||
Revision as of 16:02, 18 September 2019
Annuals; roots taproots, slender. Stems 0–30 mm, often branched. Leaves 10–230 × 0.5–12 mm; blade linear or narrowly elliptic, margins toothed, veins conspicuous or not, surfaces villous or lanate to sericeous. Scapes 10–400 mm, hairy, hairs woolly, long. Spikes grayish or brownish, 20–400 mm, densely flowered, flowers in spirals; bracts ovate or elliptic, 1.7–4 mm, length 0.8–1.2 times sepals, apex not reached by green nerve. Flowers: sepals 1.9–3.5 mm; corolla radially symmetric, lobes reflexed, 1.3–2.8 mm, base cuneate; stamens 4. Seeds 2, 2–2.6 mm. 2n = 8.
Phenology: Flowering spring.
Habitat: Sandy deserts and steppes.
Elevation: 0–1800 m.
Distribution
Ariz., Calif., Nev., Tex., Utah, Mexico (Baja California, Sonora), Eurasia, Africa.
Discussion
From molecular evidence, S. C. Meyers and A. Liston (2008) suggested that Plantago ovata was introduced to North America during the Pleistocene. They recognized four varieties; North American specimens can be treated as two varieties based on bract and corolla color: the inland var. fastigiata (E. Morris) S. C. Meyers & Liston (midribs of mature flower bracts green, corolla lobes without reddish brown midribs) and the coastal var. insularis (Eastwood) S. C. Meyers & Liston (midribs of mature flower bracts brown, corolla lobe midribs prominent, reddish brown). Unfortunately, these features are not easily seen on many herbarium specimens, and these taxa are not recognized here.