|University of California, Berkeley|
|Jepson eFlora: Taxon page
Key to families | Table of families and genera
Index to accepted names and synonyms:
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|Family: Plantaginaceae||View Description||Dichotomous Key|
|Genus: Penstemon||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Penstemon spectabilis Thurb. ex A. Gray
Habit: Perennial herb 80--120 cm; herbage glabrous, green or glaucous. Leaf: +- thin; distal cauline leaves 35--100 mm, lanceolate to widely ovate, pairs fused at base, generally folded lengthwise and recurved at tip, +- serrate. Flower: calyx 3.5--6.3 mm, lobes ovate to +- round; corolla 24--34 mm, blue(-purple), throat 8--14 mm wide when pressed, pale violet to lavender, +- white within, glandular outside and on throat roof, floor generally glabrous; anther sacs 1.8--2.4 mm, dehiscing full length but barely spreading; staminode included, glabrous.
Note: Varieties hybridize in eastern TR.
eFlora Treatment Author: Margriet Wetherwax & Noel H. Holmgren
Jepson Online Interchange
Previous taxon: Penstemon speciosus
Next taxon: Penstemon spectabilis var. spectabilis
Citation for this treatment: Margriet Wetherwax & Noel H. Holmgren 2017. Penstemon spectabilis, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=37097, accessed on January 22, 2017.
Citation for the whole project: Jepson Flora Project (eds.) 2017. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on January 22, 2017.