Los penstemons de México. II. <em> Penstemon hartwegii, Penstemon gentianoides </em> y sus aliados by Richard M. Straw

Subjects: “…Penstemon…”
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Los <em> Penstemons </em> de México. I. Sobre la confusión entre <em> Penstemons lanceolatus </em> y <em> Penstemons imberbis </em> by Richard M. Straw

Subjects: “…Penstemon…”
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Effect of Salt Stress on the Growth, Physiology, and Mineral Nutrients of Two Penstemon Species by Asmita Paudel, Youping Sun

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The Complete Plastome Sequence Of Penstemon fruticosus (Pursh) Greene (Plantaginaceae) by Nathan J. Ricks, Jason M. Stettler, Mikel R. Stevens

Subjects: “…penstemon fruticosus…”
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Reproductive biology and nectar secretion dynamics of Penstemon gentianoides (Plantaginaceae): a perennial herb with a mixed pollination system? by Lucía Salas-Arcos, Carlos Lara, Juan Francisco Ornelas

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Slow Release of GA₃ Hormone from Polymer Coating Overcomes Seed Dormancy and Improves Germination by Alexandra J. S. Larson, Maureen M. Cartwright, Whitney D. Jones, Katrina Luce, Mei-Yu Chen, Kate Petersen, Shannon V. Nelson, David J. Michaelis, Matthew D. Madsen

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Effect of climate, anther morphology and pollination syndrome on pollen availability in Penstemon by Rosa A Rodríguez-Peña, Andrea D. Wolfe

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Fertilizer Rate and Substrate Water Content Effect on Growth and Flowering of Beardtongue by Amanda Bayer

Subjects: “…<i>Penstemon</i>…”
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Floral nectar microbial communities exhibit seasonal shifts associated with extreme heat: Potential implications for climate change and plant-pollinator interactions by Kaleigh A. Russell, Quinn S. McFrederick

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