Common names vs. Latin names

Common names and Latin names have different benefits and drawbacks.

Common Names:

Benefits:

  • Common names are usually easy to spell, pronounce and remember.
  • Many people only know and use common names.

Drawbacks:

  • A plant may have more than one common name.
  • A common name may be used for more than one species.
  • A common name of a plant may differ in different places.

Example: In Australia, "Flannel bush" refers to a species in the nightshade family (Solanaceae); in the USA "Flannel bush" refers to a species in the hibiscus family (Malvaceae).

Flannel bush (Solanum lasiophyllum)
Flannel bush in Australia (Solanum lasiophyllum). Image from www.australianseed.com

Flannel bush (Fremontodendron californicum)
Flannel bush in California (Fremontodendron californicum)

Scientific or Latin Names:

Benefits:

  • There is only one correct scientific name for a plant.
  • The scientific name is the same name all over the world.
  • The scientific name selection follows official rules.

California suncup
California suncup

Drawbacks:

  • Scientific names can be (and often are) officially changed.
  • The scientific name is often difficult to spell, pronounce and remember.

Example: Ten years ago, students in this class learned that the Latin name for California suncup (or...one of two species known as California suncup) was Cammisonia bistorta (Torr. & A. Gray) Raven. Due to taxonomic revisions, its accepted name is now Camissoniopsis bistorta (Torr. & A. Gray) W.L. Wagner & Hoch.