View source for Thesium

{{Treatment/ID
|accepted_name=Thesium
|accepted_authority=Linnaeus
|publications={{Treatment/Publication
|title=Sp. Pl.
|place=1: 207. 1753
|year=1753
}}
|special_status={{Treatment/ID/Special_status
|code=I
|label=Introduced
}}
|basionyms=
|synonyms=
|hierarchy=Thesiaceae;Thesium
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Thesiaceae]]</div><div class="higher-taxon"><small>genus</small>[[Thesium]]</div></div>
|etymology=Greek thes, laboring servant, alluding to simple appearance
|volume=Volume 12
|mention_page=page 413
|treatment_page=page 415
}}<!--

--><span class="statement" id="st-d0_s0" data-properties="whole_organism duration;whole_organism reproduction;whole_organism growth form"><b>Herbs </b>[shrubs], perennial [annual], synoecious [dioecious].</span> <span class="statement" id="st-d0_s1" data-properties="stem orientation;stem pubescence"><b>Stems </b>erect, hairy [glabrous].</span> <span class="statement" id="st-d0_s2" data-properties="leaf arrangement"><b>Leaves </b>alternate [opposite].</span> <span class="statement" id="st-d0_s3" data-properties="thyrse shape"><b>Inflorescences </b>racemelike [spikelike] thyrses;</span> <span class="statement" id="st-d0_s4" data-properties="">flowers subtended by bract and 2 bracteoles [bract absent].</span> <span class="statement" id="st-d0_s5" data-properties="pedicel presence"><b>Pedicels </b>absent [present].</span> <span class="statement" id="st-d0_s6" data-properties="flower reproduction"><b>Flowers </b>bisexual [unisexual];</span> <span class="statement" id="st-d0_s7" data-properties="hypanthium fusion;hypanthium fusion">hypanthium adnate to ovary proximally, free distally;</span> <span class="statement" id="st-d0_s8" data-properties="sepal presence">sepals 0 [present as small lobes or glands];</span> <span class="statement" id="st-d0_s9" data-properties="petal atypical quantity;petal quantity;post-staminal hair presence">petals (4–) 5, post-staminal hairs present;</span> <span class="statement" id="st-d0_s10" data-properties="">nectary lining hypanthium;</span> <span class="statement" id="st-d0_s11" data-properties="stamen atypical quantity;stamen quantity">stamens (4–) 5;</span> <span class="statement" id="st-d0_s12" data-properties="ovule quantity">ovules 2–3 per locule;</span> <span class="statement" id="st-d0_s13" data-properties="stigma architecture or shape">stigma capitate.</span> <span class="statement" id="st-d0_s14" data-properties="exocarp texture"><b>Pseudodrupes:</b> exocarp leathery;</span> <span class="statement" id="st-d0_s15" data-properties="pedicel size;pedicel texture">pedicel enlarging and becoming fleshy;</span> <span class="statement" id="st-d0_s16" data-properties="">hypanthium and petals persistent.</span> <span class="statement" id="st-d0_s17" data-properties="hypanthium duration;petal duration;x chromosome quantity">x = 6–9.</span><!--

-->{{Treatment/Body
|distribution=nearly worldwide
|introduced=true
|discussion=<p>Species 366 (1 in the flora).</p><!--
--><p>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.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Thesium
|authority=Linnaeus
|rank=genus
|parent rank=family
|synonyms=
|basionyms=
|family=Thesiaceae
|distribution=nearly worldwide
|introduced=true
|reference=None
|publication title=Sp. Pl.
|publication year=1753
|special status=Introduced
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V12/V12_114.xml
|genus=Thesium
|exocarp texture=leathery
|flower reproduction=bisexual
|hypanthium duration=persistent
|hypanthium fusion=free;adnate
|leaf arrangement=alternate
|ovule quantity=2;3
|pedicel presence=absent
|pedicel size=enlarging
|pedicel texture=fleshy
|petal atypical quantity=4;5
|petal duration=persistent
|petal quantity=5
|post-staminal hair presence=absent
|sepal presence=absent
|stamen atypical quantity=4;5
|stamen quantity=5
|stem orientation=erect
|stem pubescence=hairy
|stigma architecture or shape=capitate
|thyrse shape=racemelike
|whole_organism duration=perennial
|whole_organism growth form=herb
|whole_organism reproduction=synoecious
|x chromosome quantity=6;9
}}<!--

-->[[Category:Treatment]][[Category:Thesiaceae]]