View source for Penstemon tubaeflorus

{{Treatment/ID
|accepted_name=Penstemon tubaeflorus
|accepted_authority=Nuttall
|publications={{Treatment/Publication
|title=Trans. Amer. Philos. Soc., n. s.
|place=5: 181. 1835
|year=1835
}}
|common_names=Tube beardtongue
|special_status={{Treatment/ID/Special_status
|code=F
|label=Illustrated
}}{{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Penstemon tubaeflorus var. achoreus
|authority=Fernald
|rank=variety
}}
|hierarchy=Plantaginaceae;Penstemon;Penstemon subg. Penstemon;Penstemon sect. Penstemon;Penstemon tubaeflorus
|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. Penstemon]]</div><div class="higher-taxon"><small>species</small>[[Penstemon tubaeflorus]]</div></div>
|volume=Volume 17
|mention_page=page 184
|treatment_page=page 225
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Herbs.</b> Stems erect, 25–85(–100) cm, glabrous, not glaucous. <b>Leaves</b> basal and cauline, basal often withering by anthesis, not leathery, glabrous; basal and proximal cauline 25–110 × 6–38 mm, blade spatulate to ovate, base tapered, margins entire or ± serrate, apex rounded to obtuse; cauline 5–8(–10) pairs, sessile, 15–100(–135) × 4–20(–38) mm, blade ovate to lanceolate, base tapered to clasping, margins entire or ± serrate, apex acute to acuminate. <b>Thyrses</b> interrupted, cylindric, 8–30(–40) cm, axis glandular-pubescent, verticillasters 4–8(–12), cymes 3–9-flowered, 2 per node; proximal bracts ovate to lanceolate, 9–50 × 2–10 mm, margins entire or ± serrulate; peduncles and pedicels ascending to erect, glabrous or glandular-pubescent. <b>Flowers</b>: calyx lobes ovate, 2.5–5 × 1.5–2.5 mm, glandular-pubescent; corolla white, without nectar guides, funnelform, 15–22 mm, glandular-pubescent externally, glandular-pubescent internally, tube slightly differentiated, 5–7 mm, throat slightly inflated, 4–6 mm diam., rounded abaxially; stamens included or longer pair reaching orifice, pollen sacs divergent, explanate, 0.8–1 mm, dehiscing completely, connective splitting, sides glabrous, sutures smooth; staminode 9–11 mm, included or reaching orifice, 0.2–0.3 mm diam., tip recurved, distal 3–4 mm sparsely villous, hairs yellowish or brownish yellow, to 0.8 mm; style 10–12 mm. <b>Capsules</b> 7–10 × 3–5 mm, glabrous. <b>2n</b> = 32.</span><!--

-->{{Treatment/Body
|phenology=Flowering May–Jul.
|habitat=Tallgrass prairies, woodlands, roadsides.
|elevation=20–600 m.
|distribution=Ont.;Ark.;Conn.;Ill.;Ind.;Iowa;Kans.;Ky.;La.;Maine;Mass.;Miss.;Mo.;Nebr.;N.H.;N.Y.;Ohio;Pa.;R.I.;Tenn.;Tex.;Vt.;Wis.
|discussion=<p><i>Penstemon tubaeflorus</i> is concentrated in the southeastern Great Plains and Ozark Highlands, where it probably is native. <i>Penstemon tubaeflorus</i> appears to have naturalized eastward and northward in North America due to habitat disturbance and planting. Sometimes it grows in mixed populations with <i>P. digitalis</i>. Fruiting specimens of <i>P. tubaeflorus</i> often are misidentified as <i>P. digitalis</i>; the former can be distinguished by its more cylindric inflorescences with erect peduncles and smaller capsules.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Penstemon tubaeflorus
|authority=Nuttall
|rank=species
|parent rank=section
|synonyms=Penstemon tubaeflorus var. achoreus
|basionyms=
|family=Plantaginaceae
|phenology=Flowering May–Jul.
|habitat=Tallgrass prairies, woodlands, roadsides.
|elevation=20–600 m.
|distribution=Ont.;Ark.;Conn.;Ill.;Ind.;Iowa;Kans.;Ky.;La.;Maine;Mass.;Miss.;Mo.;Nebr.;N.H.;N.Y.;Ohio;Pa.;R.I.;Tenn.;Tex.;Vt.;Wis.
|reference=None
|publication title=Trans. Amer. Philos. Soc., n. s.
|publication year=1835
|special status=Illustrated;Endemic
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V17/V17_541.xml
|genus=Penstemon
|subgenus=Penstemon subg. Penstemon
|section=Penstemon sect. Penstemon
|species=Penstemon tubaeflorus
}}<!--

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