Ceanothus × mendocinensis McMinn

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Credits

New article for Trees and Shrubs Online.

Recommended citation
'Ceanothus × mendocinensis' from the website Trees and Shrubs Online (treesandshrubsonline.org/articles/ceanothus/ceanothus-x-mendocinensis/). Accessed 2026-04-20.

Family

  • Rhamnaceae

Genus

  • Ceanothus
  • Ceanothus thyrsiflorus × C. velutinus subsp. hookeri

Glossary

glabrous
Lacking hairs smooth. glabrescent Becoming hairless.
glaucous
Grey-blue often from superficial layer of wax (bloom).
hybrid
Plant originating from the cross-fertilisation of genetically distinct individuals (e.g. two species or two subspecies).
ovate
Egg-shaped; broadest towards the stem.
rachis
Central axis of an inflorescence cone or pinnate leaf.
sessile
Lacking a stem or stalk.

References

There are no active references in this article.

Credits

New article for Trees and Shrubs Online.

Recommended citation
'Ceanothus × mendocinensis' from the website Trees and Shrubs Online (treesandshrubsonline.org/articles/ceanothus/ceanothus-x-mendocinensis/). Accessed 2026-04-20.

Editorial Note

Bean’s text below has been edited to emend the parentage (given as C. thyrsiflorus × C. velutinus var. laevigatus).

A natural hybrid between C. velutinus subsp. hookeri and C. thyrsiflorus, reported from Mendocino and neighbouring counties where the two species are in contact. Leaves ovate, to 2{1/2} in. long and 1 in. wide, glabrous, dark green and glossy above, glaucous beneath; three-veined. Flowers pale blue or lavender in almost sessile umbels arranged in racemes or panicles 2 to 4 in. long; common stalk and rachis glabrous. The same hybrid may have occurred in gardens.