Penstemon ovatus

Douglas

Bot. Mag. 56: plate 2903. 1829.

Common names: Ovate-leaf beardtongue
Endemic
Treatment appears in FNA Volume 17. Treatment on page 214. Mentioned on page 187, 244.

Herbs. Stems ascending to erect, (20–) 30–100 cm, puberulent to pubescent, sometimes glabrous, not glaucous. Leaves basal and cauline, not leathery, puberulent to pubescent, sometimes only along midvein and margins; basal and proximal cauline 40–150 (–230) × 14–50 (–70) mm, blade ovate to deltate-ovate, base truncate to tapered, margins serrate-dentate, apex obtuse to acute; cauline (3–) 5–7 pairs, sessile, 25–80 (–120) × 15–45 (–70) mm, blade oblong to ovate or triangular-ovate, base clasping, margins serrate, apex acute. Thyrses interrupted, narrowly conic, 6–30 cm, axis densely glandular-pubescent, verticillasters 4–10, cymes 5–13-flowered, 2 per node; proximal bracts ovate to lanceolate, 11–35 (–70) × 4–30 (–45) mm, margins serrate, sometimes entire; peduncles and pedicels ascending to erect, densely glandular-pubescent. Flowers: calyx lobes ovate to lanceolate, (2–) 3–5 × 0.9–1.6 (–1.9) mm, margins narrowly scarious, sparsely to densely glandular-pubescent; corolla violet to blue or purple, with reddish purple nectar guides, funnelform, 15–22 mm, glandular-pubescent externally, densely white-villous internally abaxially, rarely glabrous, tube 5–6 mm, throat slightly inflated, 5–7 mm diam., 2-ridged abaxially; stamens included, pollen-sacs opposite, navicular, 0.8–1.1 mm, dehiscing completely, connective splitting, sides glabrous, sutures smooth or papillate; staminode 9–12 mm, reaching orifice or slightly exserted, 0.3–0.4 mm diam., tip recurved, distal 1–2 mm densely pilose, hairs yellow, to 1.5 mm; style 9–12 mm. Capsules 4–6 × 2.5–4.5 mm, glabrous. 2n = 16.


Phenology: Flowering May–Aug.
Habitat: Open rocky slopes and woods.
Elevation: 10–900 m.

Discussion

Penstemon ovatus is known in the Cascade Mountains from Multnomah County, Oregon, to southwestern British Columbia. The species is easily confused with the more eastern P. wilcoxii, which has a less glandular inflorescence. Herbarium specimens of P. ovatus also sometimes are misidentified as P. serrulatus, which has an eglandular inflorescence and saccate pollen sacs.

Selected References

None.

Lower Taxa

None.

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

... more about "Penstemon ovatus"
acute +  and obtuse +
Craig C. Freeman +
Douglas +
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 +
truncate;tapered +
oblong;ovate or triangular-ovate +
not +  and leathery +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
0.16 cm1.6 mm <br />0.0016 m <br /> (0.19 cm1.9 mm <br />0.0019 m <br />) +
ovate;lanceolate +
0.9mm;1.6mm +
short-tubular +  and short-campanulate +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
8 cm80 mm <br />0.08 m <br /> (12 cm120 mm <br />0.12 m <br />) +
4.5 cm45 mm <br />0.045 m <br /> (7 cm70 mm <br />0.07 m <br />) +
2.5 cm25 mm <br />0.025 m <br /> (8 cm80 mm <br />0.08 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (4.5 cm45 mm <br />0.045 m <br />) +
petiolate +  and sessile +
Ovate-leaf beardtongue +
personate +, not personate +, bilabiate +  and symmetric +
violet +  and blue +
glabrous +, white-villous +  and glandular-pubescent +
ventricose +, tubular +  and tubular-funnelform +
ampliate +
1.5 cm15 mm <br />0.015 m <br /> (2.2 cm22 mm <br />0.022 m <br />) +
5-13-flowered +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
scale-like +  and not needlelike +
B.C. +, Oreg. +  and Wash. +
drupe-like +
10–900 m. +
curved +  and straight +
1 +  and 4 +
Open rocky slopes and woods. +
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 +
puberulent +  and pubescent +
not leathery +
orbiculate;linear;orbiculate;linear;truncate;oblanceolate;obovate;oblong;elliptic;round;lanceolate;ovate +
entire +, serrate +  and serrate-dentate +
glutinous +
glandular-pubescent +
lacerate +, 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 May–Aug. +
navicular-sigmoid +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.11 cm1.1 mm <br />0.0011 m <br />) +
1/5 +  and 2/3 +
3.5 cm35 mm <br />0.035 m <br /> (7 cm70 mm <br />0.07 m <br />) +
3 cm30 mm <br />0.03 m <br /> (4.5 cm45 mm <br />0.045 m <br />) +
1.1 cm11 mm <br />0.011 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
ovate +  and lanceolate +
0.4 cm4 mm <br />0.004 m <br /> (3 cm30 mm <br />0.03 m <br />) +
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 /> (0.2 cm2 mm <br />0.002 m <br />) +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.04 cm0.4 mm <br />4.0e-4 m <br />) +
0.9 cm9 mm <br />0.009 m <br /> (?) +  and 1.2 cm12 mm <br />0.012 m <br /> (?) +
subalternate +, alternate +, whorled +  and opposite +
20 cm200 mm <br />0.2 m <br /> (30 cm300 mm <br />0.3 m <br />) +
glutinous +
climbing +  and scrambling +
sprawling +, creeping +  and prostrate +
ascending;erect +
not glaucous +, glabrous +, puberulent +  and pubescent +
30 cm300 mm <br />0.3 m <br /> (100 cm1,000 mm <br />1 m <br />) +
0.9 cm9 mm <br />0.009 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
papillate +  and smooth +
denticulate +
Penstemon ovatus +
Penstemon sect. Penstemon +
species +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
2-ridged +  and inflated +
not constricted +
6 cm60 mm <br />0.06 m <br /> (30 cm300 mm <br />0.3 m <br />) +
straight +
gibbous +  and not spurred +
0.5 cm5 mm <br />0.005 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
cauline +  and proximal +