Hansen's Northwest Native Plant Database


Penstemon serrulatus (Cascade Penstemon, Coast Penstemon)

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

Species

 Penstemon serrulatus Menzies ex Sm. – serrulate penstemon

Cascade Penstemon is found in moist low elevations along the coastal regions of Alaska, British Columbia, Washington, and Oregon.

This is a medium to tall penstemon; and true to the name (serrulatus), the thin medium green leaves are serrated along the margins.

Cascade Penstemon will develop into a cold hardy sub-shrub in UDSA zones 5-8.

The trumpet shaped flowers tend to be clustered atop the long stems and are blue to lavender sometimes with a yellow beard.

This penstemon thrives near the waters edge and the moist woodland setting so it will do well in a sunny garden situation that is given water.

           
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