View source for Thalictrum macrostylum

{{Treatment/ID
|accepted_name=Thalictrum macrostylum
|accepted_authority=Small & A. Heller
|publications={{Treatment/Publication
|title=Mem. Torrey Bot. Club
|place=3: 8. 1892
|year=1892
}}
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Thalictrum subrotundum
|authority=B. Boivin
}}
|hierarchy=Ranunculaceae;Thalictrum;Thalictrum sect. Leucocoma;Thalictrum macrostylum
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Ranunculaceae]]</div><div class="higher-taxon"><small>genus</small>[[Thalictrum]]</div><div class="higher-taxon"><small>section</small>[[Thalictrum sect. Leucocoma]]</div><div class="higher-taxon"><small>species</small>[[Thalictrum macrostylum]]</div></div>
|volume=Volume 3
|mention_page=
|treatment_page=
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Stems </b>erect to ± reclining, slender, 50-200 cm, glabrous. <b>Leaves</b> basal and cauline; basal and proximal cauline petiolate, distal cauline sessile; petioles and rachises glabrous, neither pubescent nor glandular. <b>Leaf</b> blade ternately and pinnately decompound; leaflets grayish green to brownish to bright green, nearly orbiculate to ovate or obovate, apically undivided or shallowly 2-3-lobed, 5-16(-22) × 3-18 mm, length 1-3.3 times width, leathery and prominently reticulate abaxially, or sometimes quite membranous, margins sometimes revolute, lobe margins entire; surfaces abaxially glabrous. <b>Inflorescences</b> racemes or panicles, elongate, few flowered; peduncles and pedicels neither pubescent nor glandular. <b>Flowers</b> either unisexual with staminate and pistillate on different plants, or bisexual and unisexual with staminate and bisexual on some plants, pistillate and bisexual on others; sepals 4(-6), greenish to white, nearly orbiculate, 1-2 mm; filaments white, filiform or sometimes clavate, 1.8-4 mm, rigid to flexible; anthers 0.5-1.2 mm. <b>Achenes</b> numerous, slightly stipitate; stipe 0.3-0.7 mm; body ovoid, 3-4.5 mm, prominently veined, glabrous; beak 0.7-1.7 mm. <b>2n</b> = 56.</span><!--

-->{{Treatment/Body
|phenology=Flowering late spring–summer (early Jun-mid Jul).
|habitat=Low woods, rich wooded slopes, cliffs, swampy forests, meadows, and limestone sinks
|elevation=500-800 m
|distribution=Ala.;Fla.;Ga.;Miss.;N.C.;S.C.;Va.
|discussion=<p>Much variation in <i>Thalictrum macrostylum</i> seems to be associated with habitat differences, especially the amount of sunlight received. The name T. subrotundum merely represents plants of <i>T. macrostylum</i> growing in deep shade. Common garden studies and cluster analyses do not support recognition of two species (M. Park 1992).</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Thalictrum macrostylum
|author=
|authority=Small & A. Heller
|rank=species
|parent rank=section
|synonyms=Thalictrum subrotundum
|basionyms=
|family=Ranunculaceae
|phenology=Flowering late spring–summer (early Jun-mid Jul).
|habitat=Low woods, rich wooded slopes, cliffs, swampy forests, meadows, and limestone sinks
|elevation=500-800 m
|distribution=Ala.;Fla.;Ga.;Miss.;N.C.;S.C.;Va.
|reference=None
|publication title=Mem. Torrey Bot. Club
|publication year=1892
|special status=Endemic
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V3/V3_926.xml
|genus=Thalictrum
|section=Thalictrum sect. Leucocoma
|species=Thalictrum macrostylum
}}<!--

-->[[Category:Treatment]][[Category:Thalictrum sect. Leucocoma]]