View source for Penstemon tenuis

{{Treatment/ID
|accepted_name=Penstemon tenuis
|accepted_authority=Small
|publications={{Treatment/Publication
|title=Fl. S.E. U.S.,
|place=1061, 1337. 1903
|year=1903
}}
|common_names=Sharp-sepal beardtongue
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms=
|synonyms=
|hierarchy=Plantaginaceae;Penstemon;Penstemon subg. Penstemon;Penstemon sect. Penstemon;Penstemon tenuis
|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 tenuis]]</div></div>
|volume=Volume 17
|mention_page=page 185
|treatment_page=page 224
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Herbs.</b> Stems ascending to erect, 25–85 cm, glabrate or puberulent, not glaucous. <b>Leaves</b> basal and cauline, basal often withering by anthesis, not leathery, glabrous or ± puberulent along major veins; basal and proximal cauline 65–160 × 8–48 mm, blade oblanceolate to elliptic, base tapered, margins serrate, sometime subentire, apex obtuse to acute; cauline (3–)7 or 8 pairs, sessile, 45–140 × 6–37 mm, blade lanceolate, proximals sometimes oblanceolate, base truncate to clasping, margins sharply serrate, sometimes ± serrate, apex acute to acuminate. <b>Thyrses</b> interrupted, conic, 6–20 cm, axis glabrous or retrorsely hairy, rarely ± glandular-pubescent distally, verticillasters 3–8, cymes (3–)5–15-flowered, 2 per node; proximal bracts lanceolate, 22–100 × 6–30 mm, margins serrate; peduncles and pedicels ascending, retrorsely hairy or ± glandular-pubescent distally. <b>Flowers</b>: calyx lobes ovate to lanceolate, 3.1–6 × 1–2.2 mm, glabrous or sparsely glandular-pubescent; corolla lavender to violet, with sometimes faint reddish purple nectar guides, funnelform, 10–14 mm, sparsely glandular-pubescent externally, moderately to densely white-villous internally abaxially, tube 4–6 mm, throat moderately inflated, 4–6 mm diam., rounded abaxially; stamens included, pollen sacs opposite, navicular, 0.8–1 mm, dehiscing completely, connective splitting, sides glabrous, sutures smooth or ± papillate; staminode 8–9 mm, exserted, 0.3–0.4 mm diam., tip straight, distal 4–5 mm moderately to densely pubescent, hairs orangish, to 1 mm; style 8–10 mm. <b>Capsules</b> 4–5 × 3–4 mm, glabrous.</span><!--

-->{{Treatment/Body
|phenology=Flowering Apr–Jun.
|habitat=Alluvial soils, open floodplain forests, open hardwood flatwoods, marsh margins, low prairies, wet depressions.
|elevation=0–200 m.
|distribution=Ark.;La.;Miss.;Mo.;Tex.
|discussion=<p><i>Penstemon tenuis</i> is widespread in the western Gulf Coastal Plain and lower Mississippi River Basin.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Penstemon tenuis
|authority=Small
|rank=species
|parent rank=section
|synonyms=
|basionyms=
|family=Plantaginaceae
|phenology=Flowering Apr–Jun.
|habitat=Alluvial soils, open floodplain forests, open hardwood flatwoods, marsh margins, low prairies, wet depressions.
|elevation=0–200 m.
|distribution=Ark.;La.;Miss.;Mo.;Tex.
|reference=None
|publication title=Fl. S.E. U.S.,
|publication year=1903
|special status=Endemic
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V17/V17_539.xml
|genus=Penstemon
|subgenus=Penstemon subg. Penstemon
|section=Penstemon sect. Penstemon
|species=Penstemon tenuis
}}<!--

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