Difference between revisions of "Penstemon gracilentus"
in War Department [U.S.], Pacif. Railr. Rep. 6(3): 82. 1858. (as Pentstemon)
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|accepted_name=Penstemon gracilentus | |accepted_name=Penstemon gracilentus | ||
| − | |accepted_authority=A. Gray | + | |accepted_authority=A. Gray |
|publications={{Treatment/Publication | |publications={{Treatment/Publication | ||
| − | |title=Pacif. Railr. Rep. | + | |title=in War Department [U.S.], Pacif. Railr. Rep. |
|place=6(3): 82. 1858 | |place=6(3): 82. 1858 | ||
|year=1858 | |year=1858 | ||
| + | |other_info_on_pub=(as Pentstemon) | ||
}} | }} | ||
|common_names=Slender beardtongue | |common_names=Slender beardtongue | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Penstemon gracilentus | name=Penstemon gracilentus | ||
| − | + | |authority=A. Gray | |
| − | |authority=A. Gray | ||
|rank=species | |rank=species | ||
|parent rank=section | |parent rank=section | ||
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|distribution=Calif.;Nev.;Oreg. | |distribution=Calif.;Nev.;Oreg. | ||
|reference=None | |reference=None | ||
| − | |publication title=Pacif. Railr. Rep. | + | |publication title=in War Department [U.S.], Pacif. Railr. Rep. |
|publication year=1858 | |publication year=1858 | ||
|special status=Endemic | |special status=Endemic | ||
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V17/V17_561.xml |
|genus=Penstemon | |genus=Penstemon | ||
|subgenus=Penstemon subg. Penstemon | |subgenus=Penstemon subg. Penstemon | ||
Latest revision as of 19:32, 5 November 2020
Subshrubs. Stems ascending to erect, 20–65 cm, glabrous or retrorsely hairy, hairs ± pointed, sometimes glaucous. Leaves 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. Thyrses 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. Flowers: 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. Capsules 5–7 × 3.5–4 mm. 2n = 16.
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
Penstemon gracilentus occurs from south-central Oregon (Lake County) through northeastern California and northwestern Nevada to near Lake Tahoe. D. D. Keck (1932) hypothesized that P. gracilentus was closely related to species of sect. Penstemon; his hypothesis is supported by molecular data (A. D. Wolfe et al. 2006).
Selected References
None.