View source for Krigia

{{Treatment/ID
|accepted_name=Krigia
|accepted_authority=Schreber
|publications={{Treatment/Publication
|title=Gen. Pl.
|place=2: 532. 1791
|year=1791
}}
|common_names=Dwarf dandelion
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Apogon
|authority=Elliott
|rank=genus
}} {{Treatment/ID/Synonym
|name=Cymbia
|authority=(Torrey & A. Gray) Standley
|rank=genus
}} {{Treatment/ID/Synonym
|name=Cynthia
|authority=D. Don
|rank=genus
}} {{Treatment/ID/Synonym
|name=Serinia
|authority=Rafinesque
|rank=genus
}} {{Treatment/ID/Synonym
|name=Troximon
|authority=Gaertner
|rank=genus
}}
|hierarchy=Asteraceae;Asteraceae tribe Cichorieae;Krigia
|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>[[Krigia]]</div></div>
|etymology=For David Krieg, 16??–1713, plant collector in Maryland and Delaware
|volume=Volume 19
|mention_page=page 217, 219, 363
|treatment_page=page 362
}}<!--

--><span class="statement" id="st-d0_s0" data-properties=""><b>Annuals </b>or perennials, 3–75 cm;</span> <span class="statement" id="st-d0_s1" data-properties="whole-organism some measurement;whole-organism architecture;whole-organism architecture;whole-organism duration;whole-organism some measurement;whole-organism architecture;whole-organism duration;tuber shape">taprooted, fibrous-rooted, or (in K. dandelion) with rhizomes bearing globose tubers.</span> <span class="statement" id="st-d0_s2" data-properties="stem quantity;stem orientation;stem growth form or orientation;stem shape;stem architecture;stem pubescence;stem pubescence;stem pubescence"><b>Stems </b>1–50+, usually erect, rarely decumbent, scapiform or branched distally, glabrous or sparingly villous (proximally), glandular-villous (especially distally).</span> <span class="statement" id="st-d0_s3" data-properties="leaf position"><b>Leaves </b>mostly basal, sometimes cauline;</span> <span class="statement" id="st-d0_s4" data-properties="leaf position;leaf architecture">petiolate (petioles often winged);</span> <span class="statement" id="st-d0_s5" data-properties="blade shape;blade shape;blade shape;margin shape;margin shape;margin shape;margin shape;margin shape">blades linear to lanceolate, oblanceolate, or spatulate, margins entire, denticulate, or irregularly pinnately lobed, apices acute to obtuse (faces glabrous or glandular-villous, usually glaucous in K. dandelion and K. biflora);</span> <span class="statement" id="st-d0_s6" data-properties="apex shape;apex position or shape;apex position;apex size;apex shape">distal cauline usually slightly reduced to bractlike.</span> <span class="statement" id="st-d0_s7" data-properties="head arrangement"><b>Heads </b>borne singly.</span> <span class="statement" id="st-d0_s8" data-properties="peduncle shape;peduncle architecture"><b>Peduncles </b>not distally inflated, ebracteate (from rosettes and from axils of cauline leaves or bracts).</span> <span class="statement" id="st-d0_s9" data-properties="calyculus presence"><b>Calyculi </b>0.</span> <span class="statement" id="st-d0_s10" data-properties="involucre shape;involucre diameter"><b>Involucres </b>turbinate to campanulate, 2–12 mm diam.</span> <span class="statement" id="st-d0_s11" data-properties="phyllary atypical quantity;phyllary quantity;phyllary shape;phyllary variability;phyllary growth form or texture;series quantity;apex shape"><b>Phyllaries </b>(4–) 5–18 in 1–2 series, (sometimes reflexed in fruit) linear-lanceolate to ovate, equal, herbaceous, apices acute (faces glabrous).</span> <span class="statement" id="st-d0_s12" data-properties="receptacle shape;receptacle shape;receptacle relief;receptacle pubescence;receptacle architecture"><b>Receptacles </b>flat or low-convex, pitted, glabrous, epaleate.</span> <span class="statement" id="st-d0_s13" data-properties="floret quantity"><b>Florets </b>5–60;</span> <span class="statement" id="st-d0_s14" data-properties="corolla coloration">corollas yellow to orange (equaling or surpassing phyllaries).</span> <span class="statement" id="st-d0_s15" data-properties="cypsela coloration;cypsela coloration;cypsela shape;cypsela shape;cypsela shape;cypsela shape;cypsela shape;cypsela shape;cypsela architecture or shape;nerve pubescence;rib quantity;rib pubescence"><b>Cypselae </b>brown or reddish-brown, columnar, obconic, barrel-shaped, or fusiform, not beaked, nerves or ribs 10–20, glabrous;</span> <span class="statement" id="st-d0_s16" data-properties="pappus presence;pappus duration;pappus fragility;pappus fusion;series quantity;scale quantity;scale coloration;scale coloration;bristle quantity;bristle architecture">pappi 0, or persistent, often fragile, usually in 2 series, distinct, outer of 5+, yellowish or brownish scales, inner of 5–45, barbellulate bristles (pappi 0 in K. cespitosa, 0 or 1 series of tiny scales in K. wrightii).</span> <span class="statement" id="st-d0_s17" data-properties="x chromosome atypical quantity;x chromosome quantity;x chromosome quantity;x chromosome quantity">x = (4) 5 (6, 9).</span><!--

-->{{Treatment/Body
|distribution=North America;ne Mexico
|discussion=<p>Species 7 (7 in the flora).</p><!--
--><p>Krigia is diverse and limited to North America. On molecular evidence, it stands apart from other clades of Cichorieae and is best placed as a monotypic subtribe (J. Lee et al. 2003; Lee and B. G. Baldwin 2004). Early studies classified the pappose and epappose species as different genera. A unified view of the genus was taken by L. H. Shinners (1947), and this has been supported by recent morphologic and molecular studies (K. J. Kim and T. J. Mabry 1991; Kim and B. L. Turner 1992; Kim et al. 1992b, 1992c; Kim and R. K. Jansen 1994). The most common base number is x = 5, with lower and higher numbers having arisen through dysploidy, autoploidy, and both ancient and recent alloploidy (K. L. Chambers 1965, 2004; A. S. Tomb et al. 1978; C. C. Chinnappa 1981; Kim and Turner).</p>
|tables=
|references={{Treatment/Reference
|id=chambers2004a
|text=Chambers, K. L. 2004. Taxonomic notes on Krigia (Asteraceae). Sida 21: 225–236.
}}{{Treatment/Reference
|id=chinnappa1981a
|text=Chinnappa, C. C. 1981. Cytological studies in Krigia (Asteraceae). Canad. J. Genet. Cytol. 23: 671–678.
}}{{Treatment/Reference
|id=kim1991a
|text=Kim, K. J. and T. J. Mabry. 1991. Phylogenetic and evolutionary implications of nuclear ribosomal DNA variation in dwarf dandelions (Krigia–Lactuceae–Asteraceae). Pl. Syst. Evol. 177: 53–69.
}}{{Treatment/Reference
|id=kim1992b
|text=Kim, K. J. et al. 1992b. Evolutionary implications of intraspecific chloroplast DNA variation in dwarf dandelions (Krigia–Asteraceae). Amer. J. Bot. 79: 708–715.
}}{{Treatment/Reference
|id=kim1992c
|text=Kim, K. J. et al. 1992c. Phylogenetic and evolutionary implications of interspecific chloroplast DNA variation in Krigia (Asteraceae-–Lactuceae). Syst. Bot. 17: 449–469.
}}{{Treatment/Reference
|id=kim1992d
|text=Kim, K. J. and B. L. Turner. 1992. Systematic overview of Krigia (Asteraceae–Lactuceae). Brittonia 44: 173–198.
}}{{Treatment/Reference
|id=kim1994a
|text=Kim, K. J. and R. K. Jansen. 1994. Comparisons of phylogenetic hypotheses among different data sets in dwarf dandelions (Krigia, Asteraceae): Additional information from internal transcribed spacer sequences of nuclear ribosomal DNA. Pl. Syst. Evol. 190: 157–185.
}}{{Treatment/Reference
|id=shinners1947a
|text=Shinners, L. H. 1947. Revision of the genus Krigia Schreb. Wrightia 1: 187–206.
}}
}}<!--

--><div class="treatment-key">
==Key==
<div class="treatment-key-group">
  
{| class="wikitable fna-keytable"
|-id=key-0-1
|1
|Perennials; involucres 7–15 mm; phyllaries reflexed in fruit; pappus bristles 14–45
|[[#key-0-2| > 2]]
|-id=key-0-1
|1
|Annuals; involucres 2–9 mm; phyllaries usually erect in fruit (reflexed in K. virginica); pappus bristles (1–)4–5, or pappi 0
|[[#key-0-4| > 4]]
|-id=key-0-2
|2
|Stems scapiform, never leafy or bracteate; peduncles from basal rosettes (1–5+ per plant); tubers (on rhizomes) globose
|[[Krigia dandelion|Krigia dandelion]]
|-id=key-0-2
|2
|Stems leafy or bracteate; peduncles from axils of cauline leaves and bracts (first-formed peduncle sometimes arising basally in K. montana); tubers none
|[[#key-0-3| > 3]]
|-id=key-0-3
|3
|Peduncles usually in groups of 2–6 from axils of distal cauline, auriculate, clasping bracts (on scapiform stems arising from basal rosettes); corollas orange or yellow- orange (leaves usually glaucous)
|[[Krigia biflora|Krigia biflora]]
|-id=key-0-3
|3
|Peduncles usually arising on leafy branches axillary to well-developed cauline leaves; corollas yellow
|[[Krigia montana|Krigia montana]]
|-id=key-0-4
|4
|Phyllaries reflexed in fruit; pappus bristles surpassing scales by 3+ mm
|[[Krigia virginica|Krigia virginica]]
|-id=key-0-4
|4
|Phyllaries erect in fruit; pappus bristles 0 or surpassing scales by no more than 2 mm
|[[#key-0-5| > 5]]
|-id=key-0-5
|5
|Phyllary midveins evident, not prominent nor forming curved keels; cypselae fusiform, broadest beyond middles (gradually tapering distally), apical areas ± equal to basal areoles; pappi 0
|[[Krigia cespitosa|Krigia cespitosa]]
|-id=key-0-5
|5
|Phyllary midveins becoming prominent, curving inward at bases to form keels; cypselae obconic to broadly columnar or barrel-shaped, broadest at or just proximal to apices, apical areas broader than basal areoles; pappi 0, or of scales and bristles.
|[[#key-0-6| > 6]]
|-id=key-0-6
|6
|Peduncles from rosettes; cypselae broadly obconic; pappi usually of 5 scales 0.4–0.6 mm plus 5 bristles 1.2–2 mm
|[[Krigia occidentalis|Krigia occidentalis]]
|-id=key-0-6
|6
|Peduncles mostly from branching, leafy stems; cypselae broadly columnar or barrel-shaped, slightly constricted at apices; pappi 0, or coroniform (minutes scales, rarely with 1–5 bristles).
|[[Krigia wrightii|Krigia wrightii]]
|}
</div></div><!--

-->{{#Taxon:
name=Krigia
|author=Kenton L. Chambers;Robert J. O’Kennon
|authority=Schreber
|rank=genus
|parent rank=tribe
|synonyms=Apogon;Cymbia;Cynthia;Serinia;Troximon
|basionyms=
|family=Asteraceae
|illustrator=Yevonn Wilson-Ramsey
|illustration copyright=Flora of North America Association
|distribution=North America;ne Mexico
|reference=chambers2004a;chinnappa1981a;kim1991a;kim1992b;kim1992c;kim1992d;kim1994a;shinners1947a
|publication title=Gen. Pl.
|publication year=1791
|special status=
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V19-20-21/V19_577.xml
|tribe=Asteraceae tribe Cichorieae
|genus=Krigia
|apex position=cauline
|apex position or shape=distal
|apex shape=acute;bractlike;acute;obtuse
|apex size=reduced
|blade shape=linear;lanceolate oblanceolate or spatulate
|bristle architecture=barbellulate
|bristle quantity=5;45
|calyculus presence=absent
|corolla coloration=yellow;orange
|cypsela architecture or shape=not beaked
|cypsela coloration=reddish-brown;brown
|cypsela shape=fusiform;barrel--shaped;fusiform;barrel--shaped;obconic;columnar
|floret quantity=5;60
|head arrangement=singly
|involucre diameter=2mm;12mm
|involucre shape=turbinate;campanulate
|leaf architecture=petiolate
|leaf position=cauline;basal
|margin shape=lobed;denticulate;lobed;denticulate;entire
|nerve pubescence=glabrous
|pappus duration=persistent
|pappus fragility=fragile
|pappus fusion=distinct
|pappus presence=absent
|peduncle architecture=ebracteate
|peduncle shape=inflated
|phyllary atypical quantity=4;5
|phyllary growth form or texture=herbaceous
|phyllary quantity=5;18
|phyllary shape=linear-lanceolate;ovate
|phyllary variability=equal
|receptacle architecture=epaleate
|receptacle pubescence=glabrous
|receptacle relief=pitted
|receptacle shape=low-convex;flat
|rib pubescence=glabrous
|rib quantity=10;20
|scale coloration=brownish;yellowish
|series quantity=2;1;2
|stem architecture=branched
|stem growth form or orientation=decumbent
|stem orientation=erect
|stem pubescence=glandular-villous;villous;glabrous
|stem quantity=1;50
|stem shape=scapiform
|tuber shape=globose
|whole-organism architecture=taprooted;fibrous-rooted;taprooted
|whole-organism duration=perennial;annual
|whole-organism some measurement=3cm;75cm
|x chromosome atypical quantity=4
|x chromosome quantity=9];[6;5
}}<!--

-->[[Category:Treatment]][[Category:Asteraceae tribe Cichorieae]]