View source for Triantha

{{Treatment/ID
|accepted_name=Triantha
|accepted_authority=(Nuttall) Baker
|publications={{Treatment/Publication
|title=J. Linn. Soc., Bot.
|place=17: 490. 1879
|year=1879
}}
|basionyms={{Treatment/ID/Basionym
|name=Tofieldia sect. Triantha
|authority=Nuttall
|rank=section
|publication_title=Gen. N. Amer. Pl.
|publication_place=1: 235. 1818
}}
|synonyms=
|hierarchy=Liliaceae;Triantha
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Liliaceae]]</div><div class="higher-taxon"><small>genus</small>[[Triantha]]</div></div>
|etymology=Greek tri- , three-, and anthos, flower, alluding to the flowers aggregated in threes
|volume=Volume 26
|mention_page=page 56, 58, 60, 62, 64
|treatment_page=page 61
}}<!--

--><span class="statement" id="st-d0_s0" data-properties="whole_organism duration;whole_organism architecture;whole_organism growth form"><b>Herbs,</b> perennial, rhizomatous.</span> <span class="statement" id="st-d0_s1" data-properties="stem pubescence;stem pubescence"><b>Stems </b>glandular and/or glandular-pubescent.</span> <span class="statement" id="st-d0_s2" data-properties="leaf position;leaf quantity;leaf arrangement;leaf arrangement"><b>Leaves </b>mostly basal with 0–3 towards stem base, 2-ranked, equitant;</span> <span class="statement" id="st-d0_s3" data-properties="blade arrangement or course or shape">blade linear.</span> <span class="statement" id="st-d0_s4" data-properties="inflorescence position or structure subtype;inflorescence arrangement;inflorescence architecture;inflorescence density;inflorescence shape;inflorescence length;inflorescence architecture;inflorescence architecture"><b>Inflorescences </b>terminal, racemose, open or dense and spikelike, elongating in fruit, bracteate, bracteolate;</span> <span class="statement" id="st-d0_s5" data-properties="bracteole fusion">bracteoles connate in epicalyx.</span> <span class="statement" id="st-d0_s6" data-properties=""><b>Flowers </b>borne in clusters of 2–7;</span> <span class="statement" id="st-d0_s7" data-properties="tepal duration;tepal quantity;tepal fusion;series quantity;series variability">tepals persistent, 6, in 2 somewhat dissimiliar series, distinct;</span> <span class="statement" id="st-d0_s8" data-properties="stamen quantity">stamens 6;</span> <span class="statement" id="st-d0_s9" data-properties="filament shape;filament shape">filaments strongly flattened, dilated basally;</span> <span class="statement" id="st-d0_s10" data-properties="anther fixation;anther architecture or structure in adjective form;anther dehiscence">anthers basifixed, 2-locular, introrse, without appendages;</span> <span class="statement" id="st-d0_s11" data-properties="ovary position;ovary architecture;ovary architecture;ovary pubescence">ovary superior, stipitate, apocarpous basally, glabrous;</span> <span class="statement" id="st-d0_s12" data-properties="intercarpellary nectary presence">intercarpellary nectary present;</span> <span class="statement" id="st-d0_s13" data-properties="style quantity">styles 3.</span> <span class="statement" id="st-d0_s14" data-properties="fruit architecture;fruit shape;fruit pubescence;fruit dehiscence;fruit dehiscence"><b>Fruits </b>capsular, ovoid to broadly ellipsoid or cylindrical, glabrous, dehiscence septicidal, then adaxially loculicidal.</span> <span class="statement" id="st-d0_s15" data-properties=""><b>Seeds </b>appendaged.</span> <span class="statement" id="st-d0_s16" data-properties="seed architecture;x chromosome quantity">x = 15.</span><!--

-->{{Treatment/Body
|distribution=North America;Japan
|discussion=<p>Species 4 (3 in the flora).</p><!--
--><p>Recognition here of the genus Triantha follows J. G. Baker (1879) and R. R. Gates (1918); see J. G. Packer (1993). R. W. Cruden (1991) provided cladistic evidence supporting this segregation from Tofieldia.</p><!--
--><p>In the absence of any clear understanding of evolutionary relationships within Triantha, the species are here listed alphabetically.</p>
|tables=
|references=
}}<!--

--><div class="treatment-key">
==Key==
<div class="treatment-key-group">
  
{| class="wikitable fna-keytable"
|-id=key-0-1
|1
|Styles connate basally into column 1/4–2/3 their length; capsules hard, ± equaling or slightly longer than tepals and ± enclosed by them.
|[[Triantha racemosa|Triantha racemosa]]
|-id=key-0-1
|1
|Styles distinct to base, not forming column; capsules chartaceous and easily ruptured, considerably longer than tepals and not enclosed by them.
|[[#key-0-2| > 2]]
|-id=key-0-2
|2
|Seed coat present; inflorescence sometimes forming globose head (subsp. occidentalis); glandular hairs on stem below inflorescence sometimes uniformly 4–6 times longer than wide (subsp. montana); w Canada, nw United States.
|[[Triantha occidentalis|Triantha occidentalis]]
|-id=key-0-2
|2
|Seed coat absent; inflorescence never forming globose head; glandular hairs on stem below inflorescence never uniformly 4–6 times longer than wide; widespread in Canada, also in Alaska, some north, northeastern states, and Oregon.
|[[Triantha glutinosa|Triantha glutinosa]]
|}
</div></div><!--

-->{{#Taxon:
name=Triantha
|author=John G. Packer
|authority=(Nuttall) Baker
|rank=genus
|parent rank=family
|synonyms=
|basionyms=Tofieldia sect. Triantha
|family=Liliaceae
|distribution=North America;Japan
|reference=None
|publication title=J. Linn. Soc., Bot.
|publication year=1879
|special status=
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V26/V26_30.xml
|genus=Triantha
|anther architecture or structure in adjective form=2-locular
|anther dehiscence=introrse
|anther fixation=basifixed
|blade arrangement or course or shape=linear
|bracteole fusion=connate
|filament shape=dilated;flattened
|fruit architecture=capsular
|fruit dehiscence=loculicidal;septicidal
|fruit pubescence=glabrous
|fruit shape=ovoid;broadly ellipsoid or cylindrical
|inflorescence architecture=bracteolate;bracteate;open
|inflorescence arrangement=racemose
|inflorescence density=dense
|inflorescence length=elongating
|inflorescence position or structure subtype=terminal
|inflorescence shape=spikelike
|intercarpellary nectary presence=absent
|leaf arrangement=equitant;2-ranked
|leaf position=basal
|leaf quantity=0;3
|ovary architecture=apocarpous;stipitate
|ovary position=superior
|ovary pubescence=glabrous
|seed architecture=appendaged
|series quantity=2
|series variability=dissimiliar
|stamen quantity=6
|stem pubescence=glandular-pubescent;glandular
|style quantity=3
|tepal duration=persistent
|tepal fusion=distinct
|tepal quantity=6
|whole_organism architecture=rhizomatous
|whole_organism duration=perennial
|whole_organism growth form=herb
|x chromosome quantity=15
}}<!--

-->[[Category:Treatment]][[Category:Liliaceae]]