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Classification

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Classification for Kingdom Plantae Down to Variety Penstemon attenuatus Douglas ex Lindl. var. palustris (Pennell) Cronquist

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Kingdom Plantae – Plants

Subkingdom Tracheobionta – Vascular plants

Superdivision Spermatophyta – Seed plants

Division Magnoliophyta – Flowering plants

Class Magnoliopsida – Dicotyledons

Subclass Asteridae

Order Scrophulariales

Family Scrophulariaceae – Figwort family

Genus Penstemon Schmidel – beardtongue P

Species Penstemon attenuatus Douglas ex Lindl. – sulphur penstemon P

Variety Penstemon attenuatus Douglas ex Lindl. var. palustris (Pennell) Cronquist – sulphur beardtongue P

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