Difference between revisions of "Linum virginianum"
Sp. Pl. 1: 279. 1753.
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|elevation=0–800 m. | |elevation=0–800 m. | ||
|distribution=Ont.;Ala.;Conn.;Del.;D.C.;Ga.;Ill.;Ind.;Iowa;Ky.;Md.;Mass.;Mich.;Mo.;N.J.;N.Y.;N.C.;Ohio;Pa.;R.I.;S.C.;Tenn.;Va.;W.Va. | |distribution=Ont.;Ala.;Conn.;Del.;D.C.;Ga.;Ill.;Ind.;Iowa;Ky.;Md.;Mass.;Mich.;Mo.;N.J.;N.Y.;N.C.;Ohio;Pa.;R.I.;S.C.;Tenn.;Va.;W.Va. | ||
− | |discussion=<p>Linum virginianum lacks prominent marginal teeth on the inner sepals, thus distinguishing it from L. striatum. It has a less elongate inflorescence and lacks the ribbed branchlets found in L. striatum (C. M. Rogers 1984). The corollas of L. virginianum are nearly rotate; all parts of the flower are yellow except the brownish anthers. Its capsules shatter readily and often are absent on herbarium sheets.</p> | + | |discussion=<p><i>Linum virginianum</i> lacks prominent marginal teeth on the inner sepals, thus distinguishing it from <i>L. striatum</i>. It has a less elongate inflorescence and lacks the ribbed branchlets found in <i>L. striatum</i> (C. M. Rogers 1984). The corollas of <i>L. virginianum</i> are nearly rotate; all parts of the flower are yellow except the brownish anthers. Its capsules shatter readily and often are absent on herbarium sheets.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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|publication year=1753 | |publication year=1753 | ||
|special status=Endemic | |special status=Endemic | ||
− | |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/V12/V12_44.xml |
|genus=Linum | |genus=Linum | ||
|section=Linum sect. Linopsis | |section=Linum sect. Linopsis |
Revision as of 15:46, 18 September 2019
Herbs, perennial, 15–80 cm, glabrous. Stems erect, branches 1–several from base, unbranched proximal to inflorescence. Leaves: proximal 4–10 pairs opposite, distal alternate, erect to spreading; stipular glands absent; blade of proximal leaves spatulate, central and distal elliptic, oblanceolate, or obovate, 15–25 × 3–7 mm, margins entire, not ciliate, apex acute to apiculate. Inflorescences corymbs. Pedicels 1–10 mm. Flowers: sepals persistent, lanceolate-ovate, inner shorter, broader, thinner than outer, outer sepals 2–4 mm, margins not scarious, inner sepals usually with a few small, sessile glands along margin distal to middle, rarely eglandular, outer ones entire, apex acute to acuminate; petals yellow, obovate (sometimes notched at apex), 3–5.5 mm; stamens 1.2–3 mm; anthers 0.5–1 mm; staminodia absent; styles distinct, 1–2 mm; stigmas capitate. Capsules globose, carpels flattened or ± concave abaxially, 1.3–1.8 × 2–2.5 mm, apex depressed, dehiscing freely into 10, 1-seeded segments, segments falling freely, false septa nearly complete, proximal margins usually sparsely and inconspicuously few-ciliate. Seeds 1–1.5 × 0.6–0.9 mm. 2n = 36.
Phenology: Flowering Jun–Oct.
Habitat: Open woods, fields, thickets, roadsides.
Elevation: 0–800 m.
Distribution
![V12 44-distribution-map.jpg](/w/images/0/01/V12_44-distribution-map.jpg)
Ont., Ala., Conn., Del., D.C., Ga., Ill., Ind., Iowa, Ky., Md., Mass., Mich., Mo., N.J., N.Y., N.C., Ohio, Pa., R.I., S.C., Tenn., Va., W.Va.
Discussion
Linum virginianum lacks prominent marginal teeth on the inner sepals, thus distinguishing it from L. striatum. It has a less elongate inflorescence and lacks the ribbed branchlets found in L. striatum (C. M. Rogers 1984). The corollas of L. virginianum are nearly rotate; all parts of the flower are yellow except the brownish anthers. Its capsules shatter readily and often are absent on herbarium sheets.
Selected References
None.