FIGWORT FAMILY 741 



7. Penstemon hesperius Peck. Tall Western Penstemon. Fig. 4644. 



Penstemon hesperius Peck, Torreya 32: 152. 1932. 



Stems 5-8(-12) dm. high, the herbage bright green and glabrous or becoming rather densely 

 hirtellous toward the inflorescence, the basal rosette moderately developed. Leaves thin, the 

 basal narrowly elliptic, 4-9 cm. long including the short petiole, the cauhne becoming amplexicaul ; 

 thyrsus stricl, of J-4 more or less confluent many-flowered clusters; calyx 4-7 (-9) mm. high, 

 the lobes mostly ovate with caudate-attenuate appendage equaling or exceeding the body, or 

 lanceolate throughout, the margin variable; corolla 12-14 mm. long, the palate prominent y 

 bearded; anther-sacs broadly ovate, 0.7-0.8 mm. long; staminode reaching orifice, densely 

 bearded apically with long golden hairs. 



Boggy meadows. Humid Transition Zone; along the lower Columbia River, Washington, and in the lower 

 Willamette Valley, Oregon (Washington and Clackamas Counties). Type locality: Gaston, Washington County, 

 Oregon. June-July. 



8. Penstemon Vaseyanus Greene. Vasey's Penstemon. Fig. 4645. 



Penstemon ellipticus Greene, Leaflets Bot. Obs. 1: 167. 1906. Not Coult. & Fisher, 1893. 

 Penstemon Vaseyanus Greene, op. cit. 200. 



Stems 2-5 dm. high, the herbage bright green and glabrous, the basal rosette well developed. 

 Leaves thin, entire, or occasionally one or two pairs obscurely denticulate, the basal elliptic, 

 3-12 cm. long including the slender petiole, the cauline broadly oblong or lance-oblong, the 

 upper cordate-clasping; thyrsus of 1-5 many-flowered clusters; calyx 4-7.5 mm. high, the 

 linear-oblong to lance-ovate lobes tapering to the fleshy acuminate more or less uncinate tip 

 half as long to as long as the body, the prominent margin subentire; corolla 11-15 mm. long, 

 gradually ampliate, to 5 mm. wide, rather obviously bilabiate, the limb expanded or the upper 

 lip erect, the palate prominently white-bearded; anther-sacs and staminode like those of 

 P. hesperius. 



Meadowy places in open sagebrush or on forested slopes, Arid Transition Zone; south central Washington, 

 from Kittitas County to Klickitat County. Type locality: Washington. June-Aug. 



9. Penstemon pratensis Greene. White-flowered Penstemon. Fig. 4646. 



Penstemon pratensis Greene, Leaflets Bot. Obs. 1: 165. 1906. 



Stems slender to rather stout, 2.5-5 dm. high, the herbage light green and glabrous, the 

 basal rosette developed. Leaves thin, the basal linear-oblanceolate to elliptic, 3-8 cm. long in- 

 cluding the short or elongated petiole, the lower cauline up to 9 cm. long and 18 mm. wide, the 

 upper amplexicaul; thyrsus strict, virgate, of 2-5 clusters; calyx 4-7 mm. high, the lobes 

 lanceolate to oblong with short acuminate tip, the narrow margin entire or moderately erose 

 above; corolla white (the buds tipped with yellow), 11-14 mm. long, nearly tubular to obviously 

 ampliate, the palate bearded with long yellowish hairs; anther-sacs ovate, 0.65-0.75 mm. long; 

 staminode reaching orifice, densely bearded apically with long golden hairs, n = 16. 



In moist meadows or stream borders in sagebrush or aspen. Upper Sonoran Zone to Canadian Zone; Steen 

 Mountains, Oregon, to southwestern Idaho and northeastern Nevada. Type locality: Deeth, Nevada. June- 

 July. This tetraploid species appears much like a white-flowered counterpart of the blue-flowered P. oreocharis, 

 a diploid species. 



10. Penstemon globosus (Piper) Pennell & Keck. Globe Penstemon. Fig. 4647. 



Penstemon confertus var. globosus Piper, Bull. Torrey Club 27: 397. 1900. 

 Penstemon globosus Pennell & Keck, Carnegie Inst. Wash. Pub. No. 520: 294. 1940. 



Stems slender to stout, 2. 5-4 (-6. 5) dm. high, the herbage bright green and glabrous, the 

 basal rosette well developed. Leaves thin, the basal lanceolate, 5-18 cm. long including the long 

 slender petiole, the cauline lanceolate or oblong to ovate, obtuse or acute, amplexicaul or even 

 cordate-clasping; thyrsus usually reduced to a single dense many-flowered subcapitate cluster, 

 or of 2-4 clusters, the upper crowded, the lower more remote and on erect peduncles up to 

 5 cm. long; calyx 5.5-8(-10) mm. high, the oblong or obovate lobes abruptly narrowed to the 

 lance-subulate tip, the margin prominently scarious and usually erose; corolla bright blue or 

 blue-purple, (13-) 15-20 mm. long, gradually ampliate, to 7 mm. wide, the palate slightly to 

 prominently bearded ; anther-sacs oval, pouch-like, not dehiscent quite to the free end nor 

 through the partition, denticulate-ciliolate, 0.7-0.9 mm. long; staminode included, densely 

 bearded for half its length with golden yellow hairs, n = 16. 



In boggy meadows, or sometimes in drier grassy or gravelly slopes. Arid Transition and Canadian Zones; 

 Wallowa Mountains, Oregon, east to central Idaho. Type locality: "Wallowa Mts., northeastern Oregon." 

 May-Aug. 



11. Penstemon euglaucus English. Glaucous Penstemon. Fig. 4648. 



Penstemon euglaucus English, Proc. Biol. Soc. Wash. 41 : 197. 1928. 



Stems slender to rather stout, 1 .5-5 dm. high, the herbage glabrous and more or less glaucous 

 throughout, the rosette well developed. Leaves rather firm, the basal narrowly to broadly 

 elliptic, tapering to a short petiole, 4-10 cm. long, the cauline linear-oblong to lance-ovate; 

 thyrsus strict, of 1-5 more or less remote many-flowered clusters; calyx 3.5-5 mm. high, the 

 lobes broadly oblong-obovate with an abrupt caudate tip half as long as the body, the prominent 

 scarious margin more or less erose; corolla deep blue, 11-15 mm. long, moderately ampliate, 

 the palate lightly yellow-bearded ; anther-sacs narrowly ovate, dehiscent throughout but not 



