Difference between revisions of "Penstemon distans"

N. H. Holmgren

Brittonia 32: 326, fig. 1. 1980.

Common names: Mt. Trumbull beardtongue
EndemicConservation concern
Treatment appears in FNA Volume 17. Treatment on page 132. Mentioned on page 126, 133.
FNA>Volume Importer
 
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|elevation=1200–1600 m.
 
|elevation=1200–1600 m.
 
|distribution=Ariz.
 
|distribution=Ariz.
|discussion=<p>Penstemon distans is known from the southeastern end of the Shivwits Plateau in Mohave County.</p>
+
|discussion=<p><i>Penstemon distans</i> is known from the southeastern end of the Shivwits Plateau in Mohave County.</p>
 
|tables=
 
|tables=
 
|references=
 
|references=
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|publication year=1980
 
|publication year=1980
 
|special status=Endemic;Conservation concern
 
|special status=Endemic;Conservation concern
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V17/V17_339.xml
+
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V17/V17_339.xml
 
|genus=Penstemon
 
|genus=Penstemon
 
|subgenus=Penstemon subg. Penstemon
 
|subgenus=Penstemon subg. Penstemon

Revision as of 14:59, 18 September 2019

Stems ascending to erect, (25–)30–60 cm, puberulent proximally, glandular-pubescent distally. Leaves basal and cauline, not leathery, puberulent proximally, glandular-pubescent distally; basal and proximal cauline petiolate, 55–140 × 2–14 mm, blade oblanceolate, base tapered, margins entire or ± dentate, apex obtuse to acute; cauline 3–6 pairs, short-petiolate or sessile, 25–40(–60) × 1–3(–7) mm, blade lanceolate, base tapered to subcordate-clasping, margins entire or ± serrate, apex obtuse to acute. Thyrses interrupted, cylindric, 8–30 cm, axis glandular-pubescent, verticillasters 6–10, cymes 1- or 2(or 3)-flowered, 2 per node; proximal bracts lanceolate to linear, 5–35 × 1–6 mm; peduncles and pedicels glandular-pubescent. Flowers: calyx lobes lanceolate, 4–7 × 1–1.8 mm, glandular-pubescent; corolla blue to violet, with reddish purple nectar guides, funnelform, 16–20 mm, sparsely to moderately white- or yellow-lanate internally abaxially, tube 7–8 mm, throat gradually inflated, not constricted at orifice, 6–8 mm diam., 2-ridged abaxially; stamens included, pollen sacs parallel, navicular, 1.4–1.8 mm, dehiscing completely, sutures papillate; staminode 9–11 mm, reaching orifice or barely exserted, 0.7–0.9 mm diam., tip recurved, distal 6–8 mm densely hairy, hairs yellow-orange, to 1.4 mm; style 7–9 mm. Capsules 7–9 × 4–6 mm.


Phenology: Flowering Apr–Jun.
Habitat: Limestone gravel slopes, pine-juniper woodlands.
Elevation: 1200–1600 m.

Discussion

Penstemon distans is known from the southeastern end of the Shivwits Plateau in Mohave County.

Selected References

None.

Lower Taxa

None.