View source for Hymenoxys jamesii

{{Treatment/ID
|accepted_name=Hymenoxys jamesii
|accepted_authority=Bierner
|publications={{Treatment/Publication
|title=Madroño
|place=40: 43. 1993
|year=1993
}}
|common_names=James’s rubberweed
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}{{Treatment/ID/Special_status
|code=C
|label=Conservation concern
}}
|basionyms=
|synonyms=
|hierarchy=Asteraceae;Asteraceae tribe Heliantheae;Asteraceae (tribe Heliantheae) subtribe Gaillardiinae;Hymenoxys;Hymenoxys jamesii
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Asteraceae]]</div><div class="higher-taxon"><small>tribe</small>[[Asteraceae tribe Heliantheae]]</div><div class="higher-taxon"><small>subtribe</small>[[Asteraceae (tribe Heliantheae) subtribe Gaillardiinae]]</div><div class="higher-taxon"><small>genus</small>[[Hymenoxys]]</div><div class="higher-taxon"><small>species</small>[[Hymenoxys jamesii]]</div></div>
|volume=Volume 21
|mention_page=page 435, 436
|treatment_page=page 443
}}<!--

--><span class="statement" id="st-d0_s0" data-properties="whole-organism some measurement;whole-organism duration;whole-organism some measurement;whole-organism duration"><b>Biennials </b>or perennials, 30–120 cm (monocarpic; sometimes with sparingly branched, woody caudices).</span> <span class="statement" id="st-d0_s1" data-properties="stem atypical quantity;stem quantity;stem coloration;stem architecture;stem pubescence"><b>Stems </b>1–4 (–20), usually purple-red-tinted proximally, branched distally, ± hairy.</span> <span class="statement" id="st-d0_s2" data-properties="blade architecture;blade shape;blade pubescence"><b>Leaves:</b> blades simple or lobed (lobes 3–9), ± hairy, glanddotted;</span> <span class="statement" id="st-d0_s3" data-properties="mid leaf shape">mid leaves lobed (lobes 3–5, terminal lobes 0.8–2.2 mm wide).</span> <span class="statement" id="st-d0_s4" data-properties="head atypical quantity;head atypical quantity;head quantity;array architecture"><b>Heads </b>(30–) 50–180 (–330) per plant, in paniculiform to corymbiform arrays.</span> <span class="statement" id="st-d0_s5" data-properties="peduncle some measurement;peduncle pubescence"><b>Peduncles </b>1.3–5 cm, ± hairy.</span> <span class="statement" id="st-d0_s6" data-properties="involucre shape;involucre length;involucre width"><b>Involucres </b>subhemispheric to campanulate, 4–7 × 4–8 mm.</span> <span class="statement" id="st-d0_s7" data-properties="phyllary size;series quantity"><b>Phyllaries </b>in 2 series, unequal;</span> <span class="statement" id="st-d0_s8" data-properties="outer phyllary quantity;outer phyllary fusion;outer phyllary lengths;outer phyllary shape;outer phyllary some measurement">outer 8–10, basally connate 1/3 their lengths, ovate to lanceolate, 2.9–5.5 mm, apices acuminate to acute;</span> <span class="statement" id="st-d0_s9" data-properties="apex shape;apex position;whole-organism quantity;whole-organism shape;whole-organism some measurement;apex shape">inner 8–14, obovate, 2.8–4.2 mm, apices mucronate.</span> <span class="statement" id="st-d0_s10" data-properties="ray-floret quantity"><b>Ray-</b>florets 7–9;</span> <span class="statement" id="st-d0_s11" data-properties="corolla coloration;corolla length;corolla width">corollas yellow, 4.2–8 × 2.3–5 mm.</span> <span class="statement" id="st-d0_s12" data-properties="disc-floret quantity"><b>Disc-</b>florets 30–75+;</span> <span class="statement" id="st-d0_s13" data-properties="corolla some measurement">corollas 2.4–3 mm.</span> <span class="statement" id="st-d0_s14" data-properties="cypsela shape;cypsela some measurement"><b>Cypselae </b>narrowly obpyramidal, 1.6–2.1 mm;</span> <span class="statement" id="st-d0_s15" data-properties="scale atypical quantity;scale quantity;scale shape;scale shape;scale some measurement;2n chromosome quantity">pappi of 4–5 (–8) usually obovate, sometimes aristate, scales 0.8–2.1 mm. <b>2n</b> = 30.</span><!--

-->{{Treatment/Body
|phenology=Flowering (Jun–)Jul–Aug(–Sep).
|habitat=Roadsides, open areas, edges of juniper-pine forests
|elevation=2000–2400 m
|distribution=Ariz.
|discussion=<p>Of conservation concern.</p><!--
--><p>Hymenoxys jamesii is known from the Mogollon Plateau area.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Hymenoxys jamesii
|authority=Bierner
|rank=species
|parent rank=genus
|synonyms=
|basionyms=
|family=Asteraceae
|phenology=Flowering (Jun–)Jul–Aug(–Sep).
|habitat=Roadsides, open areas, edges of juniper-pine forests
|elevation=2000–2400 m
|distribution=Ariz.
|reference=None
|publication title=Madroño
|publication year=1993
|special status=Endemic;Conservation concern
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V19-20-21/V21_1112.xml
|tribe=Asteraceae tribe Heliantheae
|subtribe=Asteraceae (tribe Heliantheae) subtribe Gaillardiinae
|genus=Hymenoxys
|species=Hymenoxys jamesii
|2n chromosome quantity=30
|apex position=inner
|apex shape=mucronate;acuminate;acute
|array architecture=paniculiform;corymbiform
|blade architecture=simple
|blade pubescence=hairy
|blade shape=lobed
|corolla coloration=yellow
|corolla length=4.2mm;8mm
|corolla some measurement=2.4mm;3mm
|corolla width=2.3mm;5mm
|cypsela shape=obpyramidal
|cypsela some measurement=1.6mm;2.1mm
|disc-floret quantity=30;75
|head atypical quantity=180;330
|head quantity=50;180
|involucre length=4mm;7mm
|involucre shape=subhemispheric;campanulate
|involucre width=4mm;8mm
|mid leaf shape=lobed
|outer phyllary fusion=connate
|outer phyllary lengths=1/3
|outer phyllary quantity=8;10
|outer phyllary shape=ovate;lanceolate
|outer phyllary some measurement=2.9mm;5.5mm
|peduncle pubescence=hairy
|peduncle some measurement=1.3cm;5cm
|phyllary size=unequal
|ray-floret quantity=7;9
|scale atypical quantity=5;8
|scale quantity=4;5
|scale shape=aristate;obovate
|scale some measurement=0.8mm;2.1mm
|series quantity=2
|stem architecture=branched
|stem atypical quantity=4;20
|stem coloration=purple-red-tinted
|stem pubescence=hairy
|stem quantity=1;4
|whole-organism duration=perennial;biennial
|whole-organism quantity=8;14
|whole-organism shape=obovate
|whole-organism some measurement=2.8mm;4.2mm
}}<!--

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