Penstemon metcalfei

Wooton & Standley

Torreya 9: 145. 1909.

Common names: Metcalf’s beardtongue
Endemic
Basionym: Penstemon puberulus Wooton & Standley Bull. Torrey Bot. Club 36: 112. 1909
Treatment appears in FNA Volume 17. Treatment on page 212. Mentioned on page 189.

Herbs. Stems ascending to erect, 17–40 cm, retrorsely hairy, sometimes also ± glandular-pubescent distally, not glaucous. Leaves basal and cauline, not leathery, retrorsely hairy, sometimes only along midribs and margins; basal and proximal cauline 12–130 × 10–35 mm, blade ovate to elliptic, base tapered, margins entire or ± denticulate, apex obtuse to acute; cauline 3 or 4 pairs, petiolate or sessile, 33–100 × 12–27 mm, blade ovate to lanceolate, base tapered to truncate, sometimes clasping on distal ones, margins entire or ± denticulate, apex acute. Thyrses interrupted, cylindric, 5–15 cm, axis glandular-pubescent, verticillasters 3–5, cymes 2–6-flowered, 2 per node; proximal bracts ovate to lanceolate, 18–50 × 4–22 mm, margins entire; peduncles and pedicels erect, glandular-pubescent. Flowers: calyx lobes lanceolate, 3–6.5 × 0.9–1.5 mm, glandular-pubescent; corolla lavender to purple, with reddish purple nectar guides, bilabiate, not personate, funnelform, 16–20 mm, glandular-pubescent externally, densely white-lanate internally abaxially, tube 5–7 mm, throat gradually inflated, 5–6 mm diam., 2-ridged abaxially; stamens included, pollen-sacs opposite, navicular, 0.9–1.2 mm, dehiscing completely, connective splitting, sides glabrous, sutures papillate; staminode 10–12 mm, included or reaching orifice, 0.4–0.5 mm diam., tip recurved, distal 5–6 mm ± villous, hairs golden yellow, to 1.5 mm; style 10–13 mm. Capsules 5–8 × 3–4 mm, glabrous.


Phenology: Flowering Jul–Aug.
Habitat: Cliffs, slopes, pine and spruce-fir forests.
Elevation: 2000–2900 m.

Discussion

Penstemon metcalfei is known from the Black Range in Grant and Sierra counties. It was synonymized with P. whippleanus by D. D. Keck (1945); T. K. Todsen (1998) enumerated clear differences between the two species.

Lower Taxa

None.

"/4+timescorollathroat" is not declared as a valid unit of measurement for this property.

... more about "Penstemon metcalfei"
Acute (?) +  and Obtuse (?) +
Craig C. Freeman +
Wooton & Standley +
glandular-pubescent +
alternate +, subopposite +, whorled +  and opposite +
glaucescent +
alternate +, opposite +, whorled +, helical +  and subopposite +
cauline +, proximal +  and basal +
rarely +, not glaucous +, glabrate +, pubescent +, hairy +, glandular-lanate +, glandular-pubescent +, puberulent +, glandular +  and glabrous +
not +  and leathery +
tapered to truncate;tapered +
Penstemon puberulus +
ovate;lanceolate +
? (?) +  and ? (?) +
0.3 cm3 mm <br />0.003 m <br /> (0.65 cm6.5 mm <br />0.0065 m <br />) +
glandular-pubescent +
0.09 cm0.9 mm <br />9.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
short-tubular +  and short-campanulate +
0.5 cm5 mm <br />0.005 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
sessile +  and petiolate +
3.3 cm33 mm <br />0.033 m <br /> (10 cm100 mm <br />0.1 m <br />) +
petiolate +  and sessile +
Metcalf’s beardtongue +
not personate +  and bilabiate +
lavender to purple +
white-lanate +  and glandular-pubescent +
ampliate +
1.6 cm16 mm <br />0.016 m <br /> (2 cm20 mm <br />0.02 m <br />) +
2-6-flowered +
0.5 cm5 mm <br />0.005 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
scale-like +  and not needlelike +
drupe-like +
2000–2900 m. +
curved +  and straight +
1 +  and 4 +
Cliffs, slopes, pine and spruce-fir forests. +
golden yellow +
0 cm0 mm <br />0 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
membranous +
terminal +  and axillary +
persistent +  and deciduous +
basal +  and cauline +
not leathery +
orbiculate;linear;orbiculate;linear;truncate;oblanceolate;obovate;oblong;elliptic;round;lanceolate;ovate +
glutinous +
glandular-ciliolate +, hairy +, puberulent +, glabrescent +, glabrous +  and glandular-pubescent +
denticulate +  and entire +
axile +  and parietal +
basal +, apical +  and superior +
tenuinucellate +, unitegmic +  and hemitropous +
campylotropous +, hemianatropous +  and anatropous +
glandular-pubescent +
glandular-pubescent +
5 +  and 4 +
Flowering Jul–Aug. +
navicular-sigmoid +
0.09 cm0.9 mm <br />9.0e-4 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
1/5 +  and 2/3 +
1.8 cm18 mm <br />0.018 m <br /> (5 cm50 mm <br />0.05 m <br />) +
ovate +  and lanceolate +
0.4 cm4 mm <br />0.004 m <br /> (2.2 cm22 mm <br />0.022 m <br />) +
todsen1998a +
minute +
0.2 cm2 mm <br />0.002 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
Black (?) +, Gray (?) +, Brown (?) +  and Tan (?) +
angled +  and slightly rounded +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
reaching orifice +  and included +
1 cm10 mm <br />0.01 m <br /> (?) +  and 1.2 cm12 mm <br />0.012 m <br /> (?) +
subalternate +, alternate +, whorled +  and opposite +
glutinous +
climbing +  and scrambling +
sprawling +, creeping +  and prostrate +
ascending;erect +
17 cm170 mm <br />0.17 m <br /> (40 cm400 mm <br />0.4 m <br />) +
1 cm10 mm <br />0.01 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
papillate +
denticulate +
Penstemon metcalfei +
Penstemon sect. Penstemon +
species +
0.5 cm5 mm <br />0.005 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
2-ridged +  and inflated +
not constricted +
cylindric +
5 cm50 mm <br />0.05 m <br /> (15 cm150 mm <br />0.15 m <br />) +
straight +
gibbous +  and not spurred +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
cauline +  and proximal +