View source for Pectis linearifolia

{{Treatment/ID
|accepted_name=Pectis linearifolia
|accepted_authority=Urban
|publications={{Treatment/Publication
|title=Symb. Antill.
|place=5: 276. 1907
|year=1907
}}
|common_names=Florida chinchweed
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms=
|synonyms=
|hierarchy=Asteraceae;Asteraceae tribe Heliantheae;Asteraceae (tribe Heliantheae) subtribe Pectidinae;Pectis;Pectis linearifolia
|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 Pectidinae]]</div><div class="higher-taxon"><small>genus</small>[[Pectis]]</div><div class="higher-taxon"><small>species</small>[[Pectis linearifolia]]</div></div>
|volume=Volume 21
|mention_page=page 224
|treatment_page=page 226
}}<!--

--><span class="statement" id="st-d0_s0" data-properties="whole-organism some measurement;whole-organism duration"><b>Annuals,</b> 4–40 cm;</span> <span class="statement" id="st-d0_s1" data-properties="herbage odor">herbage lemon-scented.</span> <span class="statement" id="st-d0_s2" data-properties="stem orientation;stem pubescence;stem pubescence"><b>Stems </b>decumbent to erect (very leafy), glabrous or puberulent (in decurrent lines).</span> <span class="statement" id="st-d0_s3" data-properties="leaf arrangement or course or shape;leaf length;leaf width;pair quantity;face pubescence"><b>Leaves </b>linear, 10–50 × 1–3 mm, margins with 2–6 pairs of setae, faces glabrous (abaxial dotted submarginally with round oil-glands 0.2–0.5 mm).</span> <span class="statement" id="st-d0_s4" data-properties="head arrangement;head arrangement;array architecture or arrangement;array architecture"><b>Heads </b>borne singly or in congested, (leafy) cymiform arrays.</span> <span class="statement" id="st-d0_s5" data-properties="peduncle some measurement"><b>Peduncles </b>0–1 mm.</span> <span class="statement" id="st-d0_s6" data-properties="involucre shape"><b>Involucres </b>narrowly campanulate to cylindric.</span> <span class="statement" id="st-d0_s7" data-properties="phyllary fusion;phyllary shape;phyllary shape;phyllary length;phyllary width"><b>Phyllaries </b>distinct, linear or linear-oblanceolate, 5–6 × 1–1.5 mm (dotted with scattered, elliptic oil-glands 0.4–0.5 mm).</span> <span class="statement" id="st-d0_s8" data-properties="ray-floret quantity"><b>Ray-</b>florets 5;</span> <span class="statement" id="st-d0_s9" data-properties="corolla some measurement">corollas 4.5–5.5 mm.</span> <span class="statement" id="st-d0_s10" data-properties="disc-floret quantity"><b>Disc-</b>florets 4–10;</span> <span class="statement" id="st-d0_s11" data-properties="corolla some measurement">corollas 2.5–3 mm (2-lipped).</span> <span class="statement" id="st-d0_s12" data-properties="cypsela some measurement;cypsela pubescence"><b>Cypselae </b>2.25–3.25 mm, puberulent;</span> <span class="statement" id="st-d0_s13" data-properties="pappus height or length or size;bristle quantity;bristle architecture or shape;awn some measurement">pappi (ray and disc similar) of 2–5 antrorsely barbed bristles or awns 1.5–2.5 mm plus shorter, barbellate scales.</span> <span class="statement" id="st-d0_s14" data-properties="scale architecture;2n chromosome quantity">2n = 48.</span><!--

-->{{Treatment/Body
|phenology=Flowering mostly Aug–Dec.
|habitat=Open sites, sandy-gravelly soils with grasses and other herbs
|elevation=0–50 m
|distribution=Fla.
|discussion=<p>Reports of Pectis linearifolia from Jamaica were based on misidentifications of diminutive, short-peduncled individuals of P. glaucescens (D. J. Keil 1986). In Florida, P. linearifolia and P. glaucescens are largely allopatric; they occasionally occur in mixed populations. No hybrids are known.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Pectis linearifolia
|authority=Urban
|rank=species
|parent rank=genus
|synonyms=
|basionyms=
|family=Asteraceae
|phenology=Flowering mostly Aug–Dec.
|habitat=Open sites, sandy-gravelly soils with grasses and other herbs
|elevation=0–50 m
|distribution=Fla.
|reference=None
|publication title=Symb. Antill.
|publication year=1907
|special status=Endemic
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V19-20-21/V21_544.xml
|tribe=Asteraceae tribe Heliantheae
|subtribe=Asteraceae (tribe Heliantheae) subtribe Pectidinae
|genus=Pectis
|species=Pectis linearifolia
|2n chromosome quantity=48
|array architecture=cymiform
|array architecture or arrangement=congested
|awn some measurement=1.5mm;2.5mm
|bristle architecture or shape=barbed
|bristle quantity=2;5
|corolla some measurement=2.5mm;3mm
|cypsela pubescence=puberulent
|cypsela some measurement=2.25mm;3.25mm
|disc-floret quantity=4;10
|face pubescence=glabrous
|head arrangement=in congested , cymiform arrays;singly
|herbage odor=lemon-scented
|involucre shape=narrowly campanulate;cylindric
|leaf arrangement or course or shape=linear
|leaf length=10mm;50mm
|leaf width=1mm;3mm
|pair quantity=2;6
|pappus height or length or size=shorter
|peduncle some measurement=0mm;1mm
|phyllary fusion=distinct
|phyllary length=5mm;6mm
|phyllary shape=linear-oblanceolate;linear
|phyllary width=1mm;1.5mm
|ray-floret quantity=5
|scale architecture=barbellate
|stem orientation=decumbent;erect
|stem pubescence=puberulent;glabrous
|whole-organism duration=annual
|whole-organism some measurement=4cm;40cm
}}<!--

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