View source for Penstemon gracilentus

{{Treatment/ID
|accepted_name=Penstemon gracilentus
|accepted_authority=A. Gray in War Department [U.S.]
|publications={{Treatment/Publication
|title=Pacif. Railr. Rep.
|place=6(3): 82. 1858
|year=1858
}}
|common_names=Slender beardtongue
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms=
|synonyms=
|hierarchy=Plantaginaceae;Penstemon;Penstemon subg. Penstemon;Penstemon sect. Saccanthera;Penstemon gracilentus
|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. Saccanthera]]</div><div class="higher-taxon"><small>species</small>[[Penstemon gracilentus]]</div></div>
|volume=Volume 17
|mention_page=page 230, 235
|treatment_page=page 234
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Subshrubs.</b> Stems ascending to erect, 20–65 cm, glabrous or retrorsely hairy, hairs ± pointed, sometimes glaucous. <b>Leaves</b> essentially cauline, basal absent or essentially so, opposite, glabrous, sometimes glaucous distally or abaxially; cauline (3–)6–10 pairs, petiolate or sessile, (20–)40–80(–105) × (2–)4–15 mm, blade spatulate to oblanceolate or lanceolate, base tapered, margins entire, apex rounded to obtuse or acute. <b>Thyrses</b> interrupted, cylindric, (3–)7–28 cm, axis glandular-pubescent, usually sparsely so proximally, verticillasters 3–6(–9), cymes 2–4(–7)-flowered, 2 per node; proximal bracts lanceolate to linear, 14–75 × 1–6 mm; peduncles and pedicels ascending to erect, glandular-pubescent. <b>Flowers</b>: calyx lobes oblong to lanceolate, 3.5–5.5 × 0.8–1.4 mm, glandular-pubescent; corolla blue to violet or purple, with or without dark blue nectar guides, funnelform, 15–20(–24) mm, glandular-pubescent externally, glabrous internally or sparsely to densely white- or yellow-pilose abaxially, tube 6–8 mm, throat gradually inflated, 4–5 mm diam., 2-ridged abaxially; stamens included or longer pair reaching orifice, filaments glabrous, pollen sacs parallel, 1–1.3 mm, distal 1/2 indehiscent, sides glabrous, sutures denticulate, teeth to 0.1 mm; staminode 8–10 mm, included, 0.3–0.4 mm diam., distal 3–5 mm sparsely to moderately pubescent, hairs yellow, to 0.5 mm; style 12–15 mm. <b>Capsules</b> 5–7 × 3.5–4 mm. <b>2n</b> = 16.</span><!--

-->{{Treatment/Body
|phenology=Flowering Jun–Aug.
|habitat=Lava and granitic sand or gravel, sagebrush shrublands, juniper woodlands, pine-fir forests.
|elevation=1000–3000 m.
|distribution=Calif.;Nev.;Oreg.
|discussion=<p><i>Penstemon gracilentus</i> occurs from south-central Oregon (Lake County) through northeastern California and northwestern <i>Nevada</i> to near Lake Tahoe. D. D. Keck (1932) hypothesized that <i>P. gracilentus</i> was closely related to species of sect. <i>Penstemon</i>; his hypothesis is supported by molecular data (A. D. Wolfe et al. 2006).</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Penstemon gracilentus
|author=
|authority=A. Gray in War Department [U.S.]
|rank=species
|parent rank=section
|synonyms=
|basionyms=
|family=Plantaginaceae
|phenology=Flowering Jun–Aug.
|habitat=Lava and granitic sand or gravel, sagebrush shrublands, juniper woodlands, pine-fir forests.
|elevation=1000–3000 m.
|distribution=Calif.;Nev.;Oreg.
|reference=None
|publication title=Pacif. Railr. Rep.
|publication year=1858
|special status=Endemic
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V17/V17_561.xml
|genus=Penstemon
|subgenus=Penstemon subg. Penstemon
|section=Penstemon sect. Saccanthera
|species=Penstemon gracilentus
}}<!--

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