Difference between revisions of "Thesium"
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|distribution=nearly worldwide. | |distribution=nearly worldwide. | ||
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|discussion=<p>Species 366 (1 in the flora).</p><!-- | |discussion=<p>Species 366 (1 in the flora).</p><!-- | ||
--><p><i>Thesium</i> is closely related to the South African endemic Osyridocarpos A. de Candolle (J. P. Der and D. L. Nickrent 2008). For this reason and because Africa contains the highest species diversity, this region can be assumed to be the center of origin for <i>Thesium</i>.</p> | --><p><i>Thesium</i> is closely related to the South African endemic Osyridocarpos A. de Candolle (J. P. Der and D. L. Nickrent 2008). For this reason and because Africa contains the highest species diversity, this region can be assumed to be the center of origin for <i>Thesium</i>.</p> | ||
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|publication year=1753 | |publication year=1753 | ||
|special status=Introduced | |special status=Introduced | ||
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V12/V12_114.xml |
|genus=Thesium | |genus=Thesium | ||
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-->[[Category:Treatment]][[Category:Thesiaceae]] | -->[[Category:Treatment]][[Category:Thesiaceae]] | ||
Latest revision as of 19:13, 5 November 2020
Herbs [shrubs], perennial [annual], synoecious [dioecious]. Stems erect, hairy [glabrous]. Leaves alternate [opposite]. Inflorescences racemelike [spikelike] thyrses; flowers subtended by bract and 2 bracteoles [bract absent]. Pedicels absent [present]. Flowers bisexual [unisexual]; hypanthium adnate to ovary proximally, free distally; sepals 0 [present as small lobes or glands]; petals (4–)5, post-staminal hairs present; nectary lining hypanthium; stamens (4–)5; ovules 2–3 per locule; stigma capitate. Pseudodrupes: exocarp leathery; pedicel enlarging and becoming fleshy; hypanthium and petals persistent. x = 6–9.
Distribution
Introduced; nearly worldwide.
Discussion
Species 366 (1 in the flora).
Thesium is closely related to the South African endemic Osyridocarpos A. de Candolle (J. P. Der and D. L. Nickrent 2008). For this reason and because Africa contains the highest species diversity, this region can be assumed to be the center of origin for Thesium.
Selected References
None.