View source for Penstemon laricifolius

{{Treatment/ID
|accepted_name=Penstemon laricifolius
|accepted_authority=Hooker & Arnott
|publications={{Treatment/Publication
|title=Bot. Beechey Voy.,
|place=376. 1839
|year=1839
}}
|common_names=Larch-leaf beardtongue
|special_status={{Treatment/ID/Special_status
|code=F
|label=Illustrated
}}{{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms=
|synonyms=
|hierarchy=Plantaginaceae;Penstemon;Penstemon subg. Penstemon;Penstemon sect. Cristati;Penstemon laricifolius
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Plantaginaceae]]</div><div class="higher-taxon"><small>genus</small>[[Penstemon]]</div><div class="higher-taxon"><small>subgenus</small>[[Penstemon subg. Penstemon]]</div><div class="higher-taxon"><small>section</small>[[Penstemon sect. Cristati]]</div><div class="higher-taxon"><small>species</small>[[Penstemon laricifolius]]</div></div>
|volume=Volume 17
|mention_page=page 125, 139
|treatment_page=page 138
}}<!--

--><span class="statement" id="st-d0_s0" data-properties="whole_organism growth form;whole_organism growth form"><b>Plants </b>cespitose.</span> <span class="statement" id="st-d0_s1" data-properties="stem orientation;stem some measurement;stem pubescence;stem pubescence"><b>Stems </b>erect, 10–30 cm, glabrous or puberulent.</span> <span class="statement" id="st-d0_s2" data-properties=""><b>Leaves </b>basal and cauline, not leathery, glabrous, rarely puberulent proximally, especially along margins;</span> <span class="statement" id="st-d0_s3" data-properties="leaf position;leaf position;leaf texture;leaf pubescence;leaf pubescence;leaf position;whole-organism position;whole-organism position;whole-organism architecture;blade arrangement or course or shape;base shape;base architecture or fixation;margin architecture or shape;apex shape">basal and proximal cauline sessile, 15–20 (–40) × 0.5–1.5 mm, blade linear, base tapered to ± clasping, margins entire, apex acute;</span> <span class="statement" id="st-d0_s4" data-properties="cauline blade quantity;cauline blade architecture;cauline blade length;cauline blade width;blade arrangement or course or shape;base shape;base architecture or fixation;margin architecture or shape;apex shape">cauline 3–7 pairs, sessile, 11–35 × 0.3–1 mm, blade linear, base tapered to ± clasping, margins entire, apex acute.</span> <span class="statement" id="st-d0_s5" data-properties="thyrse architecture;thyrse architecture;thyrse shape;thyrse some measurement;axis pubescence;axis pubescence;verticillaster quantity;cyme architecture;cyme architecture;cyme quantity;cyme quantity"><b>Thyrses </b>continuous or interrupted, cylindric, 3–15 cm, axis glabrous or retrorsely hairy, verticillasters 3–7, cymes 1-flowered or 2 (or 3) -flowered, 1 or 2 per node;</span> <span class="statement" id="st-d0_s6" data-properties="proximal bract arrangement or course or shape;proximal bract length;proximal bract width">proximal bracts linear, 10–30 × 0.3–1 mm;</span> <span class="statement" id="st-d0_s7" data-properties="peduncle pubescence;peduncle pubescence;pedicel pubescence;pedicel pubescence">peduncles and pedicels glabrous, rarely puberulent.</span> <span class="statement" id="st-d0_s8" data-properties="calyx lobe shape;calyx lobe length;calyx lobe width;calyx lobe pubescence"><b>Flowers:</b> calyx lobes ovate, 3.5–5.8 × 1.3–2.2 mm, glabrous;</span> <span class="statement" id="st-d0_s9" data-properties="corolla coloration;corolla shape;corolla some measurement;corolla pubescence;corolla pubescence;tube some measurement;throat shape;throat size;throat diameter;throat shape">corolla white or pink to violet or purple, without nectar guides, tubular-funnelform, 9–18 mm, glabrous externally, moderately yellow-villous internally abaxially, tube 4–5 mm, throat gradually inflated, not constricted, 5–6 mm diam., rounded abaxially;</span> <span class="statement" id="st-d0_s10" data-properties="stamen position;pollen-sac arrangement;pollen-sac shape;pollen-sac distance;pollen-sac dehiscence;suture relief">stamens included, pollen-sacs opposite, navicular, 1–1.5 mm, dehiscing completely, sutures papillate;</span> <span class="statement" id="st-d0_s11" data-properties="staminode some measurement;staminode position;staminode position;staminode diameter;tip course;tip orientation;distal flower some measurement;distal flower pubescence;hair coloration;hair coloration;hair some measurement">staminode 7–11 mm, included or reaching orifice, 0.5–0.7 mm diam., tip straight to recurved, distal 3–5 mm pilose, hairs yellow or yellow-orange, to 1 mm;</span> <span class="statement" id="st-d0_s12" data-properties="style some measurement">style 9–12 mm.</span> <span class="statement" id="st-d0_s13" data-properties="capsule length;capsule width"><b>Capsules </b>4–5 × 2.5–4 mm.</span><!--

-->{{Treatment/Body
|distribution=Colo.;Mont.;Wyo.
|discussion=<p>Varieties 2 (2 in the flora).</p><!--
--><p>Molecular data (A. D. Wolfe et al. 2006; C. A. Wessinger et al. 2016) place Penstemon laricifolius with or near sect. Cristati. Two varieties, differentiated by corolla color, are difficult to distinguish in the herbarium, where corollas are usually brown. Populations with a mix of white, pink, and purple corollas have been documented in Wyoming (B. L. Heidel and J. Handley 2007).</p>
|tables=
|references=
}}<!--

--><div class="treatment-key">
==Key==
<div class="treatment-key-group">
  
{| class="wikitable fna-keytable"
|-id=key-0-1
|1
|Corollas pink to violet or purple, 10–18 mm; Montana, Wyoming.
|[[Penstemon laricifolius var. laricifolius|Penstemon laricifolius var. laricifolius]]
|-id=key-0-1
|1
|Corollas white, 9–15 mm; Colorado, Wyoming.
|[[Penstemon laricifolius var. exilifolius|Penstemon laricifolius var. exilifolius]]
|}
</div></div><!--

-->{{#Taxon:
name=Penstemon laricifolius
|authority=Hooker & Arnott
|rank=species
|parent rank=section
|synonyms=
|basionyms=
|family=Plantaginaceae
|distribution=Colo.;Mont.;Wyo.
|reference=None
|publication title=Bot. Beechey Voy.,
|publication year=1839
|special status=Illustrated;Endemic
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V17/V17_355.xml
|genus=Penstemon
|subgenus=Penstemon subg. Penstemon
|section=Penstemon sect. Cristati
|species=Penstemon laricifolius
|apex shape=acute;acute
|axis pubescence=hairy;glabrous
|base architecture or fixation=clasping;clasping
|base shape=tapered;tapered
|blade arrangement or course or shape=linear;linear
|calyx lobe length=3.5mm;5.8mm
|calyx lobe pubescence=glabrous
|calyx lobe shape=ovate
|calyx lobe width=1.3mm;2.2mm
|capsule length=4mm;5mm
|capsule width=2.5mm;4mm
|cauline blade architecture=sessile
|cauline blade length=11mm;35mm
|cauline blade quantity=3;7
|cauline blade width=0.3mm;1mm
|corolla coloration=pink;violet or purple
|corolla pubescence=yellow-villous;glabrous
|corolla shape=tubular-funnelform
|corolla some measurement=9mm;18mm
|cyme architecture=2-flowered;1-flowered
|cyme quantity=2;1
|distal flower pubescence=pilose
|distal flower some measurement=3mm;5mm
|hair coloration=yellow-orange;yellow
|hair some measurement=0mm;1mm
|leaf position=basal;cauline;basal
|leaf pubescence=puberulent;glabrous
|leaf texture=not leathery
|margin architecture or shape=entire;entire
|pedicel pubescence=puberulent;glabrous
|peduncle pubescence=puberulent;glabrous
|pollen-sac arrangement=opposite
|pollen-sac dehiscence=dehiscing
|pollen-sac distance=1mm;1.5mm
|pollen-sac shape=navicular
|proximal bract arrangement or course or shape=linear
|proximal bract length=10mm;30mm
|proximal bract width=0.3mm;1mm
|stamen position=included
|staminode diameter=0.5mm;0.7mm
|staminode position=reaching orifice;included
|staminode some measurement=7mm;11mm
|stem orientation=erect
|stem pubescence=puberulent;glabrous
|stem some measurement=10cm;30cm
|style some measurement=9mm;12mm
|suture relief=papillate
|throat diameter=5mm;6mm
|throat shape=rounded;inflated
|throat size=not constricted
|thyrse architecture=interrupted;continuous
|thyrse shape=cylindric
|thyrse some measurement=3cm;15cm
|tip course=straight
|tip orientation=recurved
|tube some measurement=4mm;5mm
|verticillaster quantity=3;7
|whole-organism architecture=sessile
|whole-organism position=cauline;proximal
|whole_organism growth form=plant;cespitose
}}<!--

-->[[Category:Treatment]][[Category:Penstemon sect. Cristati]]