Penstemon

Known as: Penstemons 
A plant genus of the family Plantaginaceae. Members contain phenylpropanoid and iridoid glycosides.
National Institutes of Health

Topic mentions per year

Topic mentions per year

1961-2018
051019612018

Papers overview

Semantic Scholar uses AI to extract papers important to this topic.
2015
2015
Variability in floral volatile emissions can occur temporally through floral development, during diel cycles, as well as… (More)
  • figure 1
  • figure 2
Is this relevant?
2007
2007
In the clade of Penstemon and segregate genera, pollination syndromes are well defined among the 284 species. Most display… (More)
  • figure 1
Is this relevant?
2007
2007
From the MeOH and ethyl acetate extracts of aerial parts of Penstemon gentianoides HBK (Plantaginaceae) an unusual iridoid of the… (More)
Is this relevant?
Highly Cited
2004
Highly Cited
2004
Floral phenotypes may be as much the result of selection for avoidance of some animal visitors as selection for improving the… (More)
  • figure 1
  • figure 27
  • figure 3
Is this relevant?
2003
2003
The seeming ubiquity of spatio-temporal variation in pollination regime suggests that flowers ought to be adapted to a wide range… (More)
  • figure 1
  • figure 2
  • figure 3
  • figure 5
  • figure 4
Is this relevant?
2003
2003
We compared pollen removal and deposition by hummingbirds and bumblebees visiting bird-syndrome Penstemon barbatus and bee… (More)
  • figure 1
  • table 1
  • figure 2
  • table 2
  • table 3
Is this relevant?
2002
2002
Plants that experience variation in pollinator visitation rates or fluctuations in weather conditions may be expected to have… (More)
  • figure 1
  • figure 2
  • figure 3
  • figure 4
Is this relevant?
2001
2001
Speciation involves the formation of reproductive isolating mechanisms such as a difference in pollinators, incompatibility… (More)
  • figure 1
  • table 1
  • table 2
Is this relevant?
2000
2000
Pollen presentation theory (PPT) allows for a re-examination of some classic themes in pollination biology. Here, we outline its… (More)
  • figure 1
  • figure 2
  • figure 3
  • figure 4
  • table 1
Is this relevant?
1998
1998
Hybrid speciation has played a significant role in the evolution of angiosperms at the polyploid level. However, relatively… (More)
  • figure 1
  • table 1
  • table 3
  • table 2
Is this relevant?