View source for Carthamus leucocaulos

{{Treatment/ID
|accepted_name=Carthamus leucocaulos
|accepted_authority=Sibthorp & Smith
|publications={{Treatment/Publication
|title=Fl. Graec. Prodr.
|place=2(1): 160. 1813
|year=1813
}}
|common_names=White-stem distaff thistle
|special_status={{Treatment/ID/Special_status
|code=W
|label=Weedy
}}{{Treatment/ID/Special_status
|code=I
|label=Introduced
}}
|basionyms=
|synonyms=
|hierarchy=Asteraceae;Asteraceae tribe Cardueae;Carthamus;Carthamus leucocaulos
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Asteraceae]]</div><div class="higher-taxon"><small>tribe</small>[[Asteraceae tribe Cardueae]]</div><div class="higher-taxon"><small>genus</small>[[Carthamus]]</div><div class="higher-taxon"><small>species</small>[[Carthamus leucocaulos]]</div></div>
|volume=Volume 19
|mention_page=page 180
|treatment_page=page 179
}}<!--

--><span class="statement" id="st-d0_s0" data-properties="whole_organism some measurement;whole_organism growth form;herbage pubescence"><b>Plants </b>30–100 cm, herbage glabrescent.</span> <span class="statement" id="st-d0_s1" data-properties="stem orientation;stem reflectance;stem coloration;stem architecture"><b>Stems </b>rigidly erect, shiny white, often much-branched distally.</span> <span class="statement" id="st-d0_s2" data-properties="leaf position;leaf position"><b>Leaves </b>basal and cauline;</span> <span class="statement" id="st-d0_s3" data-properties="basal leaf presence;petiole architecture;blade shape;pair quantity;lobe size or width">basal often absent at anthesis, petioles winged, blades pinnately divided into 6–8 pairs of narrow lobes;</span> <span class="statement" id="st-d0_s4" data-properties="cauline leaf orientation;cauline leaf orientation;cauline leaf shape;cauline leaf texture;cauline leaf architecture or fixation;cauline leaf architecture;margin shape;pair quantity;lobe height or length or size;lobe architecture or shape;apex architecture or shape">cauline spreading or recurved, lanceolate to ovate, rigid, clasping, 3–7-veined from base, margins pinnately divided into 2–3 pairs of short, spine-tipped lobes, apices spine-tipped.</span> <span class="statement" id="st-d0_s5" data-properties="involucre shape;involucre some measurement;involucre pubescence"><b>Involucres </b>ovoid, 10–13 mm, usually ± glabrous.</span> <span class="statement" id="st-d0_s6" data-properties="outer phyllary orientation;outer phyllary orientation;outer phyllary reflectance;outer phyllary some measurement;outer phyllary length;terminal appendage orientation;terminal appendage shape;terminal appendage architecture or shape"><b>Outer </b>phyllaries ascending or ± spreading, very shiny, 40–50 mm, 2.5–3.5 times as long as inner, terminal appendages spreading to ascending, spiny-lobed, prominently spine-tipped.</span> <span class="statement" id="st-d0_s7" data-properties="corolla coloration;corolla coloration;corolla some measurement;throat size"><b>Corollas </b>pink or pale-purple, 13–17 mm, throats abruptly expanded;</span> <span class="statement" id="st-d0_s8" data-properties="anther coloration;anther coloration">anthers white or pink with purple stripes;</span> <span class="statement" id="st-d0_s9" data-properties="pollen coloration">pollen white.</span> <span class="statement" id="st-d0_s10" data-properties="cypsela coloration;cypsela some measurement;outer cypsela relief or texture"><b>Cypselae </b>brown, 3–5 mm, outer roughened;</span> <span class="statement" id="st-d0_s11" data-properties="pappus-scale distance;2n chromosome quantity">pappus-scales 5–7 mm. <b>2n</b> = 20 (Greece).</span><!--

-->{{Treatment/Body
|phenology=Flowering summer (Jun–Aug).
|habitat=Disturbed sites
|elevation=0–200 m
|distribution=Calif.;Europe (Greece);Europe (islands of Aegean Sea)
|introduced=true
|discussion=<p>Between 1969 and 1990 an infestation of this noxious weed was documented in Sonoma County. Efforts to eradicate it were apparently successful.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Carthamus leucocaulos
|authority=Sibthorp & Smith
|rank=species
|parent rank=genus
|synonyms=
|basionyms=
|family=Asteraceae
|phenology=Flowering summer (Jun–Aug).
|habitat=Disturbed sites
|elevation=0–200 m
|distribution=Calif.;Europe (Greece);Europe (islands of Aegean Sea)
|introduced=true
|reference=None
|publication title=Fl. Graec. Prodr.
|publication year=1813
|special status=Weedy;Introduced
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V19-20-21/V19_201.xml
|tribe=Asteraceae tribe Cardueae
|genus=Carthamus
|species=Carthamus leucocaulos
|2n chromosome quantity=20
|anther coloration=pink;white
|apex architecture or shape=spine-tipped
|basal leaf presence=absent
|blade shape=divided
|cauline leaf architecture=3-7-veined
|cauline leaf architecture or fixation=clasping
|cauline leaf orientation=recurved;spreading
|cauline leaf shape=lanceolate;ovate
|cauline leaf texture=rigid
|corolla coloration=pale-purple;pink
|corolla some measurement=13mm;17mm
|cypsela coloration=brown
|cypsela some measurement=3mm;5mm
|herbage pubescence=glabrescent
|involucre pubescence=glabrous
|involucre shape=ovoid
|involucre some measurement=10mm;13mm
|leaf position=cauline;basal
|lobe architecture or shape=spine-tipped
|lobe height or length or size=short
|lobe size or width=narrow
|margin shape=divided
|outer cypsela relief or texture=roughened
|outer phyllary length=2.5-3.5 times as long as inner phyllaries
|outer phyllary orientation=spreading;ascending
|outer phyllary reflectance=shiny
|outer phyllary some measurement=40mm;50mm
|pair quantity=2;3
|pappus-scale distance=5mm;7mm
|petiole architecture=winged
|pollen coloration=white
|stem architecture=much-branched
|stem coloration=white
|stem orientation=erect
|stem reflectance=shiny
|terminal appendage architecture or shape=spine-tipped
|terminal appendage orientation=spreading;ascending
|terminal appendage shape=spiny-lobed
|throat size=expanded
|whole_organism growth form=plant
|whole_organism some measurement=30cm;100cm
}}<!--

-->[[Category:Treatment]][[Category:Carthamus]]