Penstemon heterophyllus Lindl.

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Credits

Article from Bean's Trees and Shrubs Hardy in the British Isles

Recommended citation
'Penstemon heterophyllus' from the website Trees and Shrubs Online (treesandshrubsonline.org/articles/penstemon/penstemon-heterophyllus/). Accessed 2024-03-28.

Glossary

apex
(pl. apices) Tip. apical At the apex.
glabrous
Lacking hairs smooth. glabrescent Becoming hairless.
glaucous
Grey-blue often from superficial layer of wax (bloom).
lanceolate
Lance-shaped; broadest in middle tapering to point.
linear
Strap-shaped.
sessile
Lacking a stem or stalk.
stamen
Male reproductive organ of flower. Usually composed of an anther and a filament.

References

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Credits

Article from Bean's Trees and Shrubs Hardy in the British Isles

Recommended citation
'Penstemon heterophyllus' from the website Trees and Shrubs Online (treesandshrubsonline.org/articles/penstemon/penstemon-heterophyllus/). Accessed 2024-03-28.

A subshrub usually under 112 ft high, the stems, leaves, and inflorescences either glabrous or slightly downy. Leaves opposite, sessile, linear or lanceolate, 1 to 4 in. long, 18 to 14 in. wide, sessile, green or more rarely glaucous. Flowers lavender-blue at the mouth, purplish red at the base, 1 to 114 in. long, borne in the axils of reduced leaves at the ends of the season’s shoots singly or in twos; tube narrow, somewhat inflated and expanded at the apex. Anthers hairy on the margin; sterile stamen glabrous. Bot. Mag., t. 3853.

Native of California; discovered by Douglas and introduced by him in 1828. It is a beautiful species in its best-coloured forms but rather tender and intolerant of winter wet.