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With 90% of its nearly 1,400 native plants classified as endemic, Hawai'i has one of the highest levels of endemism of any floristic region of the world.
For more than two centuries, biodiversity collections have served as the foundation for scientific investigation of and education about life on Earth. The collections that have been assembled in
The North American crop wild relatives (CWR) of lettuce (Lactuca L.) represent an underexplored
Crop wild relatives, the wild progenitors and closely related cousins of cultivated plant
species, are sources of valuable genetic resources for crop improvement. Persisting gaps
The Hamamelidaceae has genera with named cultivars, but only one cultivar registration authority for the genus Hamamelis.
Check out this Plant Photo Verification Spreadsheet put together by Boyce Tankersley and the Plant Nomenclature & Taxonomy Community.
This is a list of Online Resources for Nomenclatural Verification assembled by the Plant Nomenclature & Taxonomy Community.
This Online Herbaria Guide was assembled by the Plant Nomenclature & Taxonomy Community. It provides a list of herbaria for research purposes.
Ulmus americana (American elm) was an important urban tree in North America prior to the introduction of the Dutch elm disease pathogen in 1930. Subsequently, urban and community forests were devastated by the loss of large canopies.