View source for Chaetadelpha

{{Treatment/ID
|accepted_name=Chaetadelpha
|accepted_authority=A. Gray ex S. Watson
|publications={{Treatment/Publication
|title=Amer. Naturalist
|place=7: 301. 1873
|year=1873
}}
|basionyms=
|synonyms=
|hierarchy=Asteraceae;Asteraceae tribe Cichorieae;Chaetadelpha
|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>[[Chaetadelpha]]</div></div>
|etymology=Greek chaite, long hair, bristles, and adelphe, sister, alluding to adnation of awns and bristles of pappi
|volume=Volume 19
|mention_page=page 218
|treatment_page=page 368
}}<!--

--><span class="statement" id="st-d0_s0" data-properties="whole-organism some measurement;whole-organism duration"><b>Perennials,</b> 15–40 cm;</span> <span class="statement" id="st-d0_s1" data-properties="rhizome fragility or size;rhizome architecture">rhizomes stout, branching.</span> <span class="statement" id="st-d0_s2" data-properties="stem quantity;stem orientation;stem architecture;stem pubescence"><b>Stems </b>2–4, ascending to suberect, freely branched, glabrous.</span> <span class="statement" id="st-d0_s3" data-properties=""><b>Leaves </b>basal and cauline (basal withered at flowering);</span> <span class="statement" id="st-d0_s4" data-properties="leaf position;leaf position;leaf architecture">sessile;</span> <span class="statement" id="st-d0_s5" data-properties="blade shape">blades linear to linear-lanceolate, margins entire;</span> <span class="statement" id="st-d0_s6" data-properties="margin architecture or shape;margin position or shape;scale size">distal reduced to scales.</span> <span class="statement" id="st-d0_s7" data-properties="head arrangement"><b>Heads </b>borne singly (terminal at ends of stems and branches).</span> <span class="statement" id="st-d0_s8" data-properties="peduncle shape;peduncle architecture"><b>Peduncles </b>not inflated, not bracteate.</span> <span class="statement" id="st-d0_s9" data-properties="bractlet quantity;bractlet size"><b>Calyculi </b>of 4–5, minute bractlets.</span> <span class="statement" id="st-d0_s10" data-properties="involucre shape;involucre diameter"><b>Involucres </b>cylindric, 3–4 mm diam.</span> <span class="statement" id="st-d0_s11" data-properties="phyllary quantity;phyllary arrangement or course or shape;phyllary variability;series quantity;margin coloration;apex shape"><b>Phyllaries </b>5 in 1 series, linear, equal, margins hyaline, apices acute.</span> <span class="statement" id="st-d0_s12" data-properties="receptacle prominence or shape;receptacle pubescence;receptacle architecture"><b>Receptacles </b>flat, glabrous, epaleate.</span> <span class="statement" id="st-d0_s13" data-properties="floret quantity"><b>Florets </b>5;</span> <span class="statement" id="st-d0_s14" data-properties="corolla coloration">corollas pale lavender to white.</span> <span class="statement" id="st-d0_s15" data-properties="cypsela coloration;cypsela shape;cypsela quantity;cypsela shape;face architecture or pubescence or relief;face pubescence"><b>Cypselae </b>light tan, columnar, 5 ridge-angled, faces smooth, without grooves or striations, glabrous;</span> <span class="statement" id="st-d0_s16" data-properties="pappus duration;awn quantity;awn architecture;awn quantity;series quantity">pappi persistent (borne on minute, raised pedestals 0.1 mm), of 5, barbellate awns plus 35–50+, barbellulate bristles in 1–2 series, all ± connate basally (bristles ± in groups alternating with the awns).</span> <span class="statement" id="st-d0_s17" data-properties="bristle architecture;bristle fusion;x chromosome quantity">x = 9.</span><!--

-->{{Treatment/Body
|distribution=sw United States
|discussion=<p>Species 1.</p>
|tables=
|references={{Treatment/Reference
|id=tomb1972b
|text=Tomb, A. S. 1972. Taxonomy of Chaetadelpha (Compositae: Cichorieae). Madroño 21: 459–462.
}}
}}<!--

--><!--

-->{{#Taxon:
name=Chaetadelpha
|author=L. D. Gottlieb
|authority=A. Gray ex S. Watson
|rank=genus
|parent rank=tribe
|synonyms=
|basionyms=
|family=Asteraceae
|illustrator=Bee F. Gunn
|illustration copyright=Flora of North America Association
|distribution=sw United States
|reference=tomb1972b
|publication title=Amer. Naturalist
|publication year=1873
|special status=
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V19-20-21/V19_587.xml
|tribe=Asteraceae tribe Cichorieae
|genus=Chaetadelpha
|apex shape=acute
|awn architecture=barbellate
|awn quantity=35;50
|blade shape=linear;linear-lanceolate
|bractlet quantity=4;5
|bractlet size=minute
|bristle architecture=barbellulate
|bristle fusion=connate
|corolla coloration=pale lavender;white
|cypsela coloration=light tan
|cypsela quantity=5
|cypsela shape=ridge-angled;columnar
|face architecture or pubescence or relief=smooth
|face pubescence=glabrous
|floret quantity=5
|head arrangement=singly
|involucre diameter=3mm;4mm
|involucre shape=cylindric
|leaf architecture=sessile
|leaf position=cauline;basal
|margin architecture or shape=entire
|margin coloration=hyaline
|margin position or shape=distal
|pappus duration=persistent
|peduncle architecture=not bracteate
|peduncle shape=not inflated
|phyllary arrangement or course or shape=linear
|phyllary quantity=5
|phyllary variability=equal
|receptacle architecture=epaleate
|receptacle prominence or shape=flat
|receptacle pubescence=glabrous
|rhizome architecture=branching
|rhizome fragility or size=stout
|scale size=reduced
|series quantity=1;2
|stem architecture=branched
|stem orientation=ascending;suberect
|stem pubescence=glabrous
|stem quantity=2;4
|whole-organism duration=perennial
|whole-organism some measurement=15cm;40cm
|x chromosome quantity=9
}}<!--

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