Difference between revisions of "Penstemon subglaber"
Bull. Torrey Bot. Club 36: 688. 1909. (as Pentstemon)
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|common_names=Northern smooth beardtongue | |common_names=Northern smooth beardtongue | ||
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| − | |basionyms={{Treatment/ID/ | + | |basionyms={{Treatment/ID/Basionym |
|name=Penstemon glaber var. utahensis | |name=Penstemon glaber var. utahensis | ||
|authority=S. Watson | |authority=S. Watson | ||
| + | |rank=variety | ||
| + | |publication_title=Botany (Fortieth Parallel), | ||
| + | |publication_place=217. 1871 | ||
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name=Penstemon subglaber | name=Penstemon subglaber | ||
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|authority=Rydberg | |authority=Rydberg | ||
|rank=species | |rank=species | ||
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|publication year=1909 | |publication year=1909 | ||
|special status=Endemic | |special status=Endemic | ||
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|genus=Penstemon | |genus=Penstemon | ||
|subgenus=Penstemon subg. Penstemon | |subgenus=Penstemon subg. Penstemon | ||
Latest revision as of 19:32, 5 November 2020
Stems erect, (10–)18–90(–130) cm, glabrous proximally, usually sparsely glandular distally, not glaucous. Leaves basal and cauline, not leathery, glabrous, not glaucous; basal and proximal cauline 35–140(–170) × 8–24 mm, blade oblanceolate, sometimes lanceolate, base tapered, margins entire, apex obtuse to acute; cauline 3–6(–11) pairs, short-petiolate or sessile, 28–95(–130) × 4–15 mm, blade oblanceolate to lanceolate, base tapered to clasping, apex acute. Thyrses interrupted, secund, (4–)12–38 cm, axis glabrous or glandular-pubescent, verticillasters 4–12, cymes 1–3(–6)-flowered, 2 per node; proximal bracts lanceolate, (3–)15–75 × (1–)2–22 mm; peduncles and pedicels glandular-pubescent, sometimes sparsely so. Flowers: calyx lobes ovate to lanceolate, 4.5–7.5 × (1.5–)2.1–2.8 mm, glandular-pubescent; corolla blue to violet or purple, with violet nectar guides, ventricose, 19–28 mm, ± glandular-pubescent externally, glabrous internally, tube 6–10(–11) mm, throat gradually inflated, not constricted at orifice, 7–10 mm diam., rounded abaxially; stamens included or longer pair reaching orifice, pollen sacs opposite, navicular, 1.6–2 mm, dehiscing incompletely, connective not splitting, sides sparsely to moderately hispid or pubescent, hairs white, to 0.2 mm, sutures denticulate, teeth to 0.1 mm; staminode 13–16 mm, reaching orifice or slightly exserted, 0.6–0.8 mm diam., tip straight, distal 2–3 mm sparsely villous, hairs yellow, to 0.7 mm; style 14–18 mm. Capsules 8–12 × 5–6 mm. 2n = 16.
Phenology: Flowering Jun–Aug.
Habitat: Sagebrush shrublands, clearings in fir forests.
Elevation: 1600–3400 m.
Distribution
Idaho, Utah, Wyo.
Discussion
Studies of morphology and flavonoids confirm the distinctness of Penstemon subglaber from P. mensarum and P. saxosorum (M. L. Moorman 1982). Penstemon subglaber occurs primarily from the Teton and Wind River mountains of western Wyoming through the Uinta and Wasatch mountains to the Tushar Mountains in south-central Utah.
Selected References
None.