Difference between revisions of "Russelia"
Enum. Syst. Pl., 6, 25. 1760.
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|distribution=Fla.;Mexico;Central America;n South America. | |distribution=Fla.;Mexico;Central America;n South America. | ||
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|discussion=<p>Species 52 (1 in the flora).</p><!-- | |discussion=<p>Species 52 (1 in the flora).</p><!-- | ||
--><p><i>Russelia</i> is unique in having capsules filled with densely packed hairs. Morphological and molecular characters suggest <i>Russelia</i> is related to Tetranema Bentham; both seem to be basal to the clade containing <i>Chelone</i> and <i>Penstemon</i> (D. C. Albach et al. 2005).</p> | --><p><i>Russelia</i> is unique in having capsules filled with densely packed hairs. Morphological and molecular characters suggest <i>Russelia</i> is related to Tetranema Bentham; both seem to be basal to the clade containing <i>Chelone</i> and <i>Penstemon</i> (D. C. Albach et al. 2005).</p> | ||
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|publication year=1760 | |publication year=1760 | ||
|special status=Introduced | |special status=Introduced | ||
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|genus=Russelia | |genus=Russelia | ||
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-->[[Category:Treatment]][[Category:Plantaginaceae]] | -->[[Category:Treatment]][[Category:Plantaginaceae]] | ||
Latest revision as of 19:36, 5 November 2020
Shrubs [herbs, perennial]. Stems arching [erect or ascending], glabrous [hairy]. Leaves caducous, cauline, whorled or opposite; petiole absent or present; blade not fleshy, not leathery, margins dentate or entire, distal leaf blade needlelike or scalelike. Inflorescences axillary, cymes; bracts present. Pedicels present; bracteoles usually present. Flowers bisexual; sepals 5, basally connate, calyx bilaterally symmetric, tubular or campanulate, lobes broadly ovate [lanceolate]; corolla red, bilaterally symmetric, bilabiate, tubular [funnelform], tube base not spurred or gibbous, lobes 5, abaxial 3, adaxial 2; stamens 4, basally adnate to corolla, didynamous, filaments glabrous; staminode [0 or]1, conical [filiform]; ovary 2-locular, placentation axile; stigma subcapitate. Fruits capsules, dehiscence septicidal, densely packed with white, membranous hairs. Seeds 50–200, dark brown [black], ovoid, wings absent. × = 10.
Distribution
Introduced; Fla., Mexico, Central America, n South America.
Discussion
Species 52 (1 in the flora).
Russelia is unique in having capsules filled with densely packed hairs. Morphological and molecular characters suggest Russelia is related to Tetranema Bentham; both seem to be basal to the clade containing Chelone and Penstemon (D. C. Albach et al. 2005).