View source for Buchnera

{{Treatment/ID
|accepted_name=Buchnera
|accepted_authority=Linnaeus
|publications={{Treatment/Publication
|title=Sp. Pl.
|place=2: 630. 1753
|year=1753
}}
|common_names=Bluehearts
|basionyms=
|synonyms=
|hierarchy=Orobanchaceae;Buchnera
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Orobanchaceae]]</div><div class="higher-taxon"><small>genus</small>[[Buchnera]]</div></div>
|etymology=For Andreas Elias von Büchner, 1701–1769, physician
|volume=Volume 17
|mention_page=page 457, 508
|treatment_page=page 506
}}<!--

--><span class="statement" id="st-d0_s0" data-properties=""><b>Herbs,</b> biennial or perennial [annual];</span> <span class="statement" id="st-d0_s1" data-properties="whole_organism duration;whole_organism duration;whole_organism nutrition;whole_organism growth form;caudex texture">hemiparasitic, caudex ca. as wide as stem, semiwoody.</span> <span class="statement" id="st-d0_s2" data-properties="stem orientation;stem texture;stem pubescence;stem pubescence"><b>Stems </b>erect, not fleshy, glabrate or hispid-hirsute.</span> <span class="statement" id="st-d0_s3" data-properties="leaf position;leaf position;leaf position;leaf arrangement;leaf arrangement"><b>Leaves </b>basal and cauline or cauline, opposite or subopposite;</span> <span class="statement" id="st-d0_s4" data-properties="petiole presence;petiole quantity">petiole absent or nearly so;</span> <span class="statement" id="st-d0_s5" data-properties="blade texture;blade texture;margin architecture or shape;margin shape;margin shape;margin shape;margin shape">blade not fleshy, not leathery, margins entire, dentate, or crenate.</span> <span class="statement" id="st-d0_s6" data-properties="inflorescence position or structure subtype;raceme shape"><b>Inflorescences </b>terminal, spikes or spikelike racemes;</span> <span class="statement" id="st-d0_s7" data-properties="bract presence">bracts present.</span> <span class="statement" id="st-d0_s8" data-properties="pedicel presence;pedicel presence"><b>Pedicels </b>absent or present;</span> <span class="statement" id="st-d0_s9" data-properties="bracteole presence">bracteoles present.</span> <span class="statement" id="st-d0_s10" data-properties="sepal quantity;calyx architecture or shape;calyx shape;lobe shape"><b>Flowers:</b> sepals 5, calyx nearly radially symmetric, tubular, lobes narrowly triangular;</span> <span class="statement" id="st-d0_s11" data-properties="petal quantity;corolla coloration;corolla coloration;corolla coloration;corolla coloration;corolla coloration;corolla coloration;corolla coloration;corolla coloration;corolla architecture;corolla shape;corolla pubescence;abaxial lobe quantity;adaxial lobe quantity">petals 5, corolla purple, blue-purple, blue, violet, rosy, or white, bilabiate, salverform, pilose within, abaxial lobes 3, adaxial 2;</span> <span class="statement" id="st-d0_s12" data-properties="stamen quantity;stamen size;filament pubescence">stamens 4, subequal, filaments pilose;</span> <span class="statement" id="st-d0_s13" data-properties="staminode presence">staminode 0;</span> <span class="statement" id="st-d0_s14" data-properties="ovary architecture or structure in adjective form;ovary placentation">ovary 2-locular, placentation axile;</span> <span class="statement" id="st-d0_s15" data-properties="stigma shape">stigma short-cylindric.</span> <span class="statement" id="st-d0_s16" data-properties="capsule dehiscence"><b>Capsules:</b> dehiscence loculicidal.</span> <span class="statement" id="st-d0_s17" data-properties="seed quantity;seed coloration;seed width"><b>Seeds </b>ca. 250, dark-brown to blackish, cylindric-hexahedral, slightly broader at one end, wings absent.</span> <span class="statement" id="st-d0_s18" data-properties="wing presence;x chromosome quantity">x = 20.</span><!--

-->{{Treatment/Body
|distribution=North America;Mexico;West Indies;Central America;South America;Asia (Malesia);Africa;Australia
|discussion=<p>Species ca. 100 (3 in the flora).</p><!--
--><p>In some publications, the honoree of the name Buchnera is given as Johann Gottfried Büchner (1695–1749), German botanist. C. Linnaeus (1738) explicitly stated that the honoree is A. E. von Büchner. Linnaeus omitted this information in 1753 and 1754, thus perhaps opening the door to erroneous etymology.</p>
|tables=
|references={{Treatment/Reference
|id=philcox1966a
|text=Philcox, D. 1966. Revision of the New World species of Buchnera L. (Scrophulariaceae). Kew Bull. 18: 275–315.
}}
}}<!--

--><div class="treatment-key">
==Key==
<div class="treatment-key-group">
  
{| class="wikitable fna-keytable"
|-id=key-0-1
|1
|Leaves: blades linear to linear-lanceolate, not smaller distally; calyx tubes prominently 10-nerved.
|[[Buchnera obliqua|Buchnera obliqua]]
|-id=key-0-1
|1
|Leaves: blades narrowly ovate, lanceolate, or narrowly oblanceolate, much smaller distally; calyx tubes obscurely 10-nerved.
|[[#key-0-2| > 2]]
|-id=key-0-2
|2
|Leaves: larger blades narrowly ovate to lanceolate, major veins 3, minor veins (0–)2, apex acute, margins irregularly dentate, teeth 2–3 mm; corolla lobes 5–8 mm; calyces 6–8 mm.
|[[Buchnera americana|Buchnera americana]]
|-id=key-0-2
|2
|Leaves: larger blades narrowly oblanceolate, lanceolate, or broadly linear, major veins 1, minor veins (0–)2, apex usually obtuse or rounded, margins entire or crenate, teeth 0.5–1.5 mm; corolla lobes 2–5 mm; calyces 4.5–5.5 mm.
|[[Buchnera floridana|Buchnera floridana]]
|}
</div></div><!--

-->{{#Taxon:
name=Buchnera
|author=Bruce A. Sorrie
|authority=Linnaeus
|rank=genus
|parent rank=family
|synonyms=
|basionyms=
|family=Orobanchaceae
|illustrator=Yevonn Wilson-Ramsey
|illustration copyright=Flora of North America Association
|distribution=North America;Mexico;West Indies;Central America;South America;Asia (Malesia);Africa;Australia
|reference=philcox1966a
|publication title=Sp. Pl.
|publication year=1753
|special status=
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V17/V17_874.xml
|genus=Buchnera
|abaxial lobe quantity=3
|adaxial lobe quantity=2
|blade texture=not leathery;not fleshy
|bract presence=absent
|bracteole presence=absent
|calyx architecture or shape=symmetric
|calyx shape=tubular
|capsule dehiscence=loculicidal
|caudex texture=semiwoody
|corolla architecture=bilabiate
|corolla coloration=white;rosy;white;rosy;violet;blue;blue-purple;purple
|corolla pubescence=pilose
|corolla shape=salverform
|filament pubescence=pilose
|inflorescence position or structure subtype=terminal
|leaf arrangement=subopposite;opposite
|leaf position=cauline;cauline;basal
|lobe shape=triangular
|margin architecture or shape=entire
|margin shape=crenate;dentate;crenate;dentate
|ovary architecture or structure in adjective form=2-locular
|ovary placentation=axile
|pedicel presence=absent;absent
|petal quantity=5
|petiole presence=absent
|petiole quantity=nearly
|raceme shape=spikelike
|seed coloration=dark-brown;blackish
|seed quantity=250
|seed width=broader
|sepal quantity=5
|stamen quantity=4
|stamen size=subequal
|staminode presence=absent
|stem orientation=erect
|stem pubescence=hispid-hirsute;glabrate
|stem texture=not fleshy
|stigma shape=short-cylindric
|whole_organism duration=perennial;biennial
|whole_organism growth form=herb
|whole_organism nutrition=hemiparasitic
|wing presence=absent
|x chromosome quantity=20
}}<!--

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