Penstemon

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Credits

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

Recommended citation
'Penstemon' from the website Trees and Shrubs Online (treesandshrubsonline.org/articles/penstemon/). Accessed 2019-12-10.

Family

  • Scrophulariaceae

Glossary

corolla
The inner whorl of the perianth. Composed of free or united petals often showy.

References

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Credits

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

Recommended citation
'Penstemon' from the website Trees and Shrubs Online (treesandshrubsonline.org/articles/penstemon/). Accessed 2019-12-10.

This genus is almost purely N. American and consists of some 150 species, most of which are perennial herbaceous plants. The shrubby species are mostly native of California. The leaves are opposite; the corolla tubular, two-lipped; stamens five, as the generic name indicates, but one of them is always sterile. The shrubby species are easily increased by cuttings of moderately ripened wood; they like a sunny position and a lightish well-drained soil. A very beautiful genus.

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