Genus Penstemon (437):

• Firleaf beardtongue (Penstemon abietinus)
• Absaroka range beardtongue (Penstemon absarokensis)
• Stemless beardtongue (Penstemon acaulis)
• Sharpleaf penstemon (Penstemon acuminatus)
• Sharpleaf penstemon (Penstemon acuminatus var. acuminatus)
• Sharpleaf penstemon (Penstemon acuminatus var. latebracteatus)
• Los alamos beardtongue (Penstemon alamosensis)
• Alberta beardtongue (Penstemon albertinus)
• White penstemon (Penstemon albidus)
• White river beardtongue (Penstemon albifluvis)
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Famili Scrophulariaceae (2656):

• White alling (Bontia daphnoides)
• Fountain butterflybush (Buddleja alternifolia)
• Bunga harumsari (Buddleja asiatica)
• Orange eye butterflybush (Buddleja davidii)
• Orange-ball-tree (Buddleja globosa)
• Lindley's butterflybush (Buddleja lindleyana)
• Smokebush (Buddleja madagascariensis)
• Woolly butterflybush (Buddleja marrubiifolia)
• Pole butterflybush (Buddleja officinalis)
• Wand butterflybush (Buddleja racemosa)
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