Gerald (Gerry) Carr

Emeritus Professor of Botany
Gerald (Gerry) Carr

Gerald (Gerry) Carr

Emeritus Professor of Botany

Current Contact Information

Department of Botany and Plant Pathology
Oregon State University
Cordley Hall 2082
Corvallis, OR 97331-2902



Educational Background

  • BS 1968, Eastern Washington University (Biology)
  • MS 1970, University of Wisconsin (Milwaukee) (Botany)
  • PhD 1975, University of California, Davis (Botany)

General Interests

Botany, Amateur Radio, Photography, Computers, Music

Academic Interests

Biosystematics, Cytogenetics, Chromosome Evolution, Vascular Plant Families

Current Projects

  • Biosystematics, cytogenetics, and adaptive radiation of the Hawaiian silversword alliance (Asteraceae-Madiinae)
  • Chromosome evolution in Calycadenia
  • Oregon Flora Image Project

Current Status:

  • Emeritus, University of Hawaii
  • Affiliate Faculty, Department of Botany and Plant Pathology, Oregon State University

WWW Pages (including ca. 7,500 images)

  • Vascular Plant Families – This is a collection of descriptions and captioned images of vascular plant families for use in instruction. More than 225 families are represented among the several hundred images in this category. Alphabetic and phylogenetic presentations are provided. 
  • Manoa Campus Plants – More than 325 species of plants on the campus of the University of Hawaii at Manoa are characterized in words and over 400 color images. Common names, family names, scientific names, campus locations, and notes of interests are provided for each species. (minor additions and revisions will occur from time to time)
  • Hawaiian Silversword Alliance – All 31 species of Argyroxiphium, Dubautia, and Wilkesia comprising the Hawaiian silversword alliance are illustrated and characterized. Features of the adaptive radiation of this group, including stature and habit, flower and fruit diversity, leaf morphology and anatomy, ecological and physiological adaptations, chromosomal diversity, chemical evolution, genetic variation, hybridization, molecular evolution, and origin and relationships are treated in a series of expository web pages. (text incomplete but most images in place).
  • Asteraceae (Madiinae) – A conspectus of the group of largely North American genera that spawned (and includes) the Hawaiian silversword alliance.  This theme area complements TARWEEDS AND SILVERSWORDS: Evolution of the Madiinae (Asteraceae), Carlquist, Baldwin, and Carr, eds., Missouri Botanical Garden Press.
  • Hawaiian native plants – This is a collection of several hundred images of plants occurring naturally in Hawaii. Most of these species are endemic, i.e., unique to Hawaii.
  • The Lousewort Genus Pedicularis (Scrophulariaceae) – A collection of images of an interesting circumpolar genus of about 500 hemiparasitic species.
  • Oregon Flora Image Project – Ongoing development of high resolution images for identification of Oregon plants (also useful for reinforcing plant family characteristics and concepts). 

Selected Publications