Grimes can be attributed to over 240 taxa names, either as sole author or co-author. Grimes worked at the
New York Botanical Garden studying
Fabaceae. In 1996 Grimes moved to Australia, taking up a position in the
National Herbarium of Victoria,
Royal Botanic Gardens Victoria as Mueller Fellow July–October 1996, where he worked on developmental morphology of
inflorescences in
Acacia. From July 1997 to his resignation in February 2002, Grimes was in the position of
Systematic Botanist. His research interests included the
systematics of
Fabaceae, subfamily
Mimosoideae, and the historic collections held in the
Herbarium. Grimes was co-organiser of the 2001 Legumes Down Under conference. He served as Taxonomic Co-ordinator for
legume tribes
Ingeae and
Psoraleeae for the International Legume Database and Information Service (ILDIS) 2000–2, and as Councillor of the Society of Australian Systematic Biologists 2001–2. Grimes was Editor of
Muelleria from 1997 to 2001 A significant number, over 1000 collections, are held at
NY.
MEL holds over 300 specimens collected by Grimes. Other herbaria in Australia holding his collections include
MELU,
CANB,
NSW,
HO,
ATH,
AD, and
BRI. ==Standard author abbreviation==