View source for Prenanthes autumnalis

{{Treatment/ID
|accepted_name=Prenanthes autumnalis
|accepted_authority=Walter
|publications={{Treatment/Publication
|title=Fl. Carol.,
|place=193. 1788
|year=1788
}}
|common_names=Slender rattlesnakeroot
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Nabalus virgatus
|authority=de Candolle
|rank=species
}} {{Treatment/ID/Synonym
|name=Prenanthes virgata
|authority=Michaux
|rank=species
}}
|hierarchy=Asteraceae;Asteraceae tribe Cichorieae;Prenanthes;Prenanthes autumnalis
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Asteraceae]]</div><div class="higher-taxon"><small>tribe</small>[[Asteraceae tribe Cichorieae]]</div><div class="higher-taxon"><small>genus</small>[[Prenanthes]]</div><div class="higher-taxon"><small>species</small>[[Prenanthes autumnalis]]</div></div>
|volume=Volume 19
|mention_page=page 264
|treatment_page=page 267
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>40–140 cm; taproots thickened, tuberous. <b>Stems</b> 1–5, erect, mostly green with mottled purple, slender, simple, glabrous. <b>Leaves</b>: proximal present at flowering; petiolate (petioles winged); blades oblong to linear, 7–18 × 0.5–6 cm, coriaceous, bases attenuate, margins deeply pinnately lobed or divided, lobes narrow and at right angles, apices acute to acuminate, faces glabrous or slightly glabrate along veins; distally sessile and much reduced. <b>Heads</b> (1–2 in pedunculate lateral clusters) in spiciform or racemiform arrays. <b>Involucres</b> cylindro-campanulate, 10–13 × 3–4 mm. <b>Calyculi</b> of 6–8, green to purple, triangular to subulate bractlets 1–4 mm. <b>Phyllaries</b> 7–8, pink or purple, linear to elliptic, 8–13 mm, glabrous. <b>Florets</b> 8–10; corollas usually pinkish, sometimes lavender or white, 11–17 mm. <b>Cypselae</b> dark green, elliptic to linear, subterete to angular, 3.5–5.5 mm, indistinctly 8–10-ribbed; pappi pale yellow to tan, 5 mm.</span><!--

-->{{Treatment/Body
|phenology=Flowering Aug–Oct.
|habitat=Coastal plain, low savannas, sandy pinelands, moist places, swales
|elevation=0–200 m
|distribution=Del.;Fla.;Ga.;Md.;Miss.;N.J.;N.C.;S.C.;Va.
|discussion=<p><i>Prenanthes autumnalis</i> is recognized by its erect, slender habit, pinnately lobed proximal leaves, narrowly racemiform or spiciform arrays of heads, glabrous phyllaries, and usually pinkish corollas.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Prenanthes autumnalis
|authority=Walter
|rank=species
|parent rank=genus
|synonyms=Nabalus virgatus;Prenanthes virgata
|basionyms=
|family=Asteraceae
|phenology=Flowering Aug–Oct.
|habitat=Coastal plain, low savannas, sandy pinelands, moist places, swales
|elevation=0–200 m
|distribution=Del.;Fla.;Ga.;Md.;Miss.;N.J.;N.C.;S.C.;Va.
|reference=None
|publication title=Fl. Carol.,
|publication year=1788
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V19-20-21/V19_363.xml
|tribe=Asteraceae tribe Cichorieae
|genus=Prenanthes
|species=Prenanthes autumnalis
}}<!--

-->[[Category:Treatment]][[Category:Prenanthes]]