Penstemon scapoides

D. D. Keck

Univ. Calif. Publ. Bot. 16: 379, fig. 4. 1932.

Common names: Pinyon beardtongue
Endemic
Treatment appears in FNA Volume 17. Treatment on page 243. Mentioned on page 230.

Herbs. Stems erect, 15–45 (–60) cm, glabrous, glaucous. Leaves basal and cauline, opposite, hirsute, hairs pointed, not glaucous; basal and proximal cauline 15–30 (–60) × 4–10 (–14) mm, blade ovate to elliptic, base tapered, margins entire, apex rounded to acute; cauline 2 or 3 pairs, petiolate or sessile, 8–25 (–45) × 1–3 mm, blade spatulate to oblanceolate or linear, base tapered, margins entire, apex rounded to acute. Thyrses interrupted, cylindric, 4–24 cm, axis glandular-pubescent, verticillasters 2–4, cymes 1–4-flowered, 1 or 2 per node; proximal bracts subulate to lanceolate or linear, 4–35 × 1–3 mm; peduncles and pedicels ascending to erect, glandular-pubescent. Flowers: calyx lobes oblong to ovate, 3–4.5 (–5) × 0.9–2 mm, glandular-pubescent; corolla lavender to violet or purple, with or without faint reddish purple nectar guides, ventricose, 25–34 mm, glandular-pubescent externally, yellow-lanate internally abaxially, tube 6–9 mm, throat gradually inflated, 6–8 mm diam., 2-ridged abaxially; stamens included, filaments glabrous, pollen-sacs nearly parallel, 1.4–1.5 (–1.7) mm, distal 1/2 indehiscent, sides glabrous, sutures denticulate, teeth to 0.1 mm; staminode 15–19 mm, included, 0.2–0.3 mm diam., distal 4–8 mm sparsely pilose, hairs yellow, to 0.7 mm; style 20–29 mm. Capsules 6–10 × 4–6 mm. 2n = 16.


Phenology: Flowering Jun–Aug.
Habitat: Sagebrush shrublands, pine-juniper and pine woodlands.
Elevation: 2000–3100 m.

Discussion

Penstemon scapoides is known from the Inyo, Last Chance, and White mountains in Inyo County.

Selected References

None.

Lower Taxa

None.

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

... more about "Penstemon scapoides"
rounded +  and acute +
Craig C. Freeman +
D. D. Keck +
glandular-pubescent +
subalternate +, whorled +, alternate +  and opposite +
alternate +, opposite +, whorled +, helical +  and subopposite +
cauline +, proximal +  and basal +
not +, glaucous +, glandular-pubescent +, hirsute +, pilose +, canescent +, hairy +, puberulent +, glabrate +  and glabrous +
tapered;tapered +
spatulate;oblanceolate or linear +
not +  and leathery +
0.45 cm4.5 mm <br />0.0045 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
glandular-pubescent +
oblong;ovate +
short-tubular +  and short-campanulate +
0.6 cm6 mm <br />0.006 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
sessile +  and petiolate +
2.5 cm25 mm <br />0.025 m <br /> (4.5 cm45 mm <br />0.045 m <br />) +
0.8 cm8 mm <br />0.008 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
short-petiolate +, petiolate +  and sessile +
Pinyon beardtongue +
not personate +  and bilabiate +
lavender +  and violet +
yellow-lanate +  and glandular-pubescent +
2-ridged +, inflated +  and ventricose +
ventricose-ampliate +  and ampliate +
0.6 cm6 mm <br />0.006 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
1-4-flowered +
2 +  and 1 +
0.4 cm4 mm <br />0.004 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
scale-like +  and not needlelike +
drupe-like +
2000–3100 m. +
curved +  and straight +
1 +  and 4 +
Sagebrush shrublands, pine-juniper and pine woodlands. +
not glaucous +
pointed +
0 cm0 mm <br />0 m <br /> (0.07 cm0.7 mm <br />7.0e-4 m <br />) +
membranous +
terminal +  and axillary +
persistent +  and deciduous +
cauline +  and basal +
orbiculate;linear;orbiculate;linear;truncate;oblanceolate;obovate;oblong;elliptic;round;lanceolate;ovate +
erose +  and entire +
ciliolate +, pubescent +, puberulent +, scabrous +, glandular-pubescent +  and glabrous +
lacerate +, laciniate-pinnatifid +, toothed +  and entire +
axile +  and parietal +
basal +, apical +  and superior +
tenuinucellate +, unitegmic +  and hemitropous +
campylotropous +, hemianatropous +  and anatropous +
ascending +  and erect +
glandular-pubescent +
ascending;erect +
glandular-pubescent +
5 +  and 4 +
Flowering Jun–Aug. +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.17 cm1.7 mm <br />0.0017 m <br />) +
navicular-sigmoid +
0.14 cm1.4 mm <br />0.0014 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
subulate +  and lanceolate or linear +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Univ. Calif. Publ. Bot. +
minute +
brown +, gray +  and tan +
patelliform +  and angled +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.34 cm3.4 mm <br />0.0034 m <br />) +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.03 cm0.3 mm <br />3.0e-4 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (?) +  and 1.9 cm19 mm <br />0.019 m <br /> (?) +
subalternate +, alternate +, whorled +  and opposite +
45 cm450 mm <br />0.45 m <br /> (60 cm600 mm <br />0.6 m <br />) +
climbing +  and scrambling +
sprawling +, creeping +  and prostrate +
glaucous +  and glabrous +
15 cm150 mm <br />0.15 m <br /> (45 cm450 mm <br />0.45 m <br />) +
2 cm20 mm <br />0.02 m <br /> (2.9 cm29 mm <br />0.029 m <br />) +
papillate +
denticulate +
Penstemon subg. Saccanthera +
Penstemon scapoides +
Penstemon sect. Saccanthera +
species +
rounded +  and 2-ridged +
not constricted +
cylindric +
4 cm40 mm <br />0.04 m <br /> (24 cm240 mm <br />0.24 m <br />) +
straight +
0 cm0 mm <br />0 m <br /> (0.01 cm0.1 mm <br />1.0e-4 m <br />) +
gibbous +  and not spurred +
cauline +  and proximal +