View source for Penstemon pallidus

{{Treatment/ID
|accepted_name=Penstemon pallidus
|accepted_authority=Small
|publications={{Treatment/Publication
|title=Fl. S.E. U.S.,
|place=1060, 1337. 1903
|year=1903
|other_info_on_pub=(as Pentstemon)
}}
|common_names=Pale beardtongue
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms=
|synonyms=
|hierarchy=Plantaginaceae;Penstemon;Penstemon subg. Penstemon;Penstemon sect. Penstemon;Penstemon pallidus
|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 pallidus]]</div></div>
|volume=Volume 17
|mention_page=page 186, 193, 196, 215, 224
|treatment_page=page 214
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Herbs.</b> Stems ascending to erect, 25–55(–65) cm, retrorsely hairy and glandular-villous proximally, retrorsely hairy and glandular-pubescent distally, glandular hairs sometimes sparse, not glaucous. <b>Leaves</b> basal and cauline, basal often withering by anthesis, not leathery, sparsely to densely pubescent, sometimes also with scattered glandular hairs, abaxially, sparsely pubescent adaxially; basal and proximal cauline 20–120(–180) × 5–35(–40) mm, blade spatulate to obovate or ovate, base tapered, margins subentire or ± serrate or dentate, apex rounded to obtuse or acute; cauline 4–8 pairs, sessile, 22–100 × 4–24 mm, blade ovate to lanceolate, base truncate to clasping, margins subentire or ± serrate or dentate, apex acute to acuminate. <b>Thyrses</b> interrupted, conic, 5–26(–30) cm, axis sparsely to densely glandular-pubescent, verticillasters 3–8, cymes 2–8(–16)-flowered, 2 per node; proximal bracts lanceolate, 7–72 × 2–22 mm, margins entire or ± dentate; peduncles and pedicels ascending, sparsely to densely glandular-pubescent. <b>Flowers</b>: calyx lobes ovate to lanceolate, (2–)3–5 × 1–3 mm, sparsely glandular-pubescent; corolla white, sometimes tinged lavender or blue, with reddish purple nectar guides, tubular to tubular-funnelform, 16–22 mm, glandular-pubescent externally, moderately whitish or yellowish lanate internally abaxially, tube 4–6 mm, throat slightly inflated, 4–7 mm diam., 2-ridged abaxially; stamens included, pollen sacs opposite, navicular, (0.8–)1–1.2 mm, dehiscing completely, connective splitting, sides glabrous, sutures papillate; staminode 10–12 mm, exserted, 0.2–0.3 mm diam., tip straight to slightly recurved, distal 8–9 mm moderately to densely villous, hairs yellow or golden yellow, to 1.5 mm; style 12–14 mm. <b>Capsules</b> 5–7 × 3–5 mm, glabrous. <b>2n</b> = 16.</span><!--

-->{{Treatment/Body
|phenology=Flowering Apr–Jun(–Jul).
|habitat=Tallgrass prairie, limestone and sandstone glades, barrens, rocky oak-hickory woodlands.
|elevation=10–300 m.
|distribution=Ont.;Ala.;Ark.;Conn.;D.C.;Ga.;Ill.;Ind.;Iowa;Kans.;Ky.;Maine;Md.;Mass.;Mich.;Minn.;Mo.;N.H.;N.J.;N.Y.;N.C.;Ohio;Pa.;R.I.;Tenn.;Vt.;Va.;W.Va.;Wis.
|discussion=<p><i>Penstemon pallidus</i> is concentrated in the Central Lowlands and Ozark Plateau of the central United States. F. W. Pennell (1935) believed it to be native there, having spread eastward as a result of human activities, as in Ontario.</p><!--
--><p><i>Penstemon brevisepalus</i>, which has been synonymized with <i>P. pallidus</i> by many authors, is treated here as a distinct species. Characters distinguishing the species are discussed under 147. <i>P. brevisepalus</i>.</p><!--
--><p>Some specimens from north-central Arkansas and north-central Missouri are morphologically intermediate between <i>Penstemon pallidus</i> and <i>P. arkansanus</i>.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Penstemon pallidus
|authority=Small
|rank=species
|parent rank=section
|synonyms=
|basionyms=
|family=Plantaginaceae
|phenology=Flowering Apr–Jun(–Jul).
|habitat=Tallgrass prairie, limestone and sandstone glades, barrens, rocky oak-hickory woodlands.
|elevation=10–300 m.
|distribution=Ont.;Ala.;Ark.;Conn.;D.C.;Ga.;Ill.;Ind.;Iowa;Kans.;Ky.;Maine;Md.;Mass.;Mich.;Minn.;Mo.;N.H.;N.J.;N.Y.;N.C.;Ohio;Pa.;R.I.;Tenn.;Vt.;Va.;W.Va.;Wis.
|reference=None
|publication title=Fl. S.E. U.S.,
|publication year=1903
|special status=Endemic
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V17/V17_514.xml
|genus=Penstemon
|subgenus=Penstemon subg. Penstemon
|section=Penstemon sect. Penstemon
|species=Penstemon pallidus
}}<!--

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