Difference between revisions of "Penstemon sect. Ambigui"
Contr. U.S. Natl. Herb. 20: 326, 333. 1920.
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|name=Penstemon | |name=Penstemon | ||
|authority=[unranked] Ambigui Rydberg | |authority=[unranked] Ambigui Rydberg | ||
| + | |rank=genus | ||
|publication_title=Fl. Colorado, | |publication_title=Fl. Colorado, | ||
|publication_place=306. 1906 | |publication_place=306. 1906 | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Penstemon sect. Ambigui | name=Penstemon sect. Ambigui | ||
| − | |||
|authority=(Rydberg) Pennell | |authority=(Rydberg) Pennell | ||
|rank=section | |rank=section | ||
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|publication year=1920 | |publication year=1920 | ||
|special status= | |special status= | ||
| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/eaa6e58056e40c9ef614d8f47aea294977a1a5e9/coarse_grained_fna_xml/V17/V17_254.xml |
|genus=Penstemon | |genus=Penstemon | ||
|subgenus=Penstemon subg. Penstemon | |subgenus=Penstemon subg. Penstemon | ||
Revision as of 19:08, 16 December 2019
Subshrubs. Stems glabrous, glabrate, or scabrous proximally, not glaucous. Leaves cauline, opposite, not leathery, glabrous or scabrous, not glaucous; cauline sessile, blade linear, margins entire. Thyrses interrupted, cylindric to conic, axis glabrous or scabrous, cymes 2 per node; peduncles and pedicels spreading or ascending. Flowers: calyx lobes: margins entire or erose, broadly scarious, glabrous; corolla pink or lavender to violet, bilaterally symmetric, bilabiate, not personate, salverform or funnelform, glabrous externally, glandular-pubescent internally abaxially, throat slightly inflated, not constricted at orifice, rounded abaxially; stamens included or longer pair reaching orifice or barely exserted, filaments glabrous, pollen sacs divergent, explanate, dehiscing completely, connective splitting, sides glabrous, sutures smooth; staminode included, terete or slightly flattened distally, 0.1 mm diam., tip straight, glabrous; style glabrous. Capsules glabrous. Seeds dark brown to reddish brown, angled, 1–2.8 mm.
Distribution
w United States, n Mexico.
Discussion
Species 2 (2 in the flora).
Section Ambigui includes two subshrubby species of the southwestern and south-central United States and northern Mexico.
Selected References
None.
Lower Taxa
Key
| 1 | Corollas salverform, (14–)16–22(–28) mm. | Penstemon ambiguus |
| 1 | Corollas funnelform, 8–14 mm. | Penstemon thurberi |