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Plant Morphology | Evolutionary History and Plant Development Plant Morphology – Evolutionary History and Plant Development Harvard University The Arnold Arboretum of Harvard University
Zelkova sinica (Chinese Zelkova)Friedman-Lab-Slider-Banner-no-bg-new-subtitle
Picea jezoensis (Jezo Spruce)picea-jezoensis-overlay-newFriedman-Lab-Slider-Banner-no-bg-new-subtitle
Franklinia alatamaha (Franklin Tree)franklinia-alatamaha-overlay-newFriedman-Lab-Slider-Banner-no-bg-new-subtitle
Liquidambar styraciflua (Sweetgum)liquidambar-styraciflua-overlay-newFriedman-Lab-Slider-Banner-no-bg-new-subtitle
Clematis 'marie boisselot' (Cultivar of Clematis)clematis-marie-boisselot-overlay-newFriedman-Lab-Slider-Banner-no-bg-new-subtitle
Magnolia officinalis (Houpu Magnolia)magnolia-officinalis-overlay-newFriedman-Lab-Slider-Banner-no-bg-new-subtitle
Magnolia salicifolia (Anise Magnolia)magnolia-salicifolia-overlay-newFriedman-Lab-Slider-Banner-no-bg-new-subtitle
Pinus thunbergii (Japanese Black Pine)pinus-thunbergii-overlay-newFriedman-Lab-Slider-Banner-no-bg-new-subtitle
Pinus densiflora (Japanese Red Pine)pinus-densiflora-overlay-newFriedman-Lab-Slider-Banner-no-bg-new-subtitle
Acer pseudosieboldianum ssp. takesimense (Korean Maple)acer-pseudosieboldianum-ssp-takesinense-overlay-newFriedman-Lab-Slider-Banner-no-bg-new-subtitle
Acer 'white tigress' (Cultivar of Striped-bark Maple)acer-white-tigress-overlay-newFriedman-Lab-Slider-Banner-no-bg-new-subtitle
Acer davidii (Père David's Maple)acer-davidii-overlay-newFriedman-Lab-Slider-Banner-no-bg-new-subtitle
Acer rubrum (Red Maple)acer-rubrum-overlay-newFriedman-Lab-Slider-Banner-no-bg-new-subtitle
Betula pendula f. youngii (Form of Silver Birch)betula-pendula-f-youngii-overlay-newFriedman-Lab-Slider-Banner-no-bg-new-subtitle
Betula ermanii (Erman's Birch)betula-ermanii-overlay-newFriedman-Lab-Slider-Banner-no-bg-new-subtitle
Quercus petraea (Sessile Oak)quercus-petraea-overlay-newFriedman-Lab-Slider-Banner-no-bg-new-subtitle
Cornus kousa buerg. ex hance (Hybrid of Kousa Dogwood)cornus-kousa-buerg-ex-hance-overlay-newFriedman-Lab-Slider-Banner-no-bg-new-subtitle
Paeonia 'kintajio' (Cultivar of Tree Peony)paeonia-kintajio-overlay-newFriedman-Lab-Slider-Banner-no-bg-new-subtitle
Catalpa ovata (Chinese Catalpa)catalpa-ovata-overlay-newFriedman-Lab-Slider-Banner-no-bg-new-subtitle

Our research focuses on the organismic interfaces between developmental, phylogenetic and evolutionary biology. Steady advances in the study of the phylogenetic relationships of organisms have provided the raw materials for critical studies of character evolution in plants, animals, fungi, and all other forms of life. Armed with hypotheses of relationships among organisms, we explore how patterns of morphology, anatomy, and reproduction have evolved through the modification of developmental processes. With each study, our goal is to reconstruct the origin and subsequent diversification of a clade of plants, and to generate explicit hypotheses of the developmental innovations central to evolutionary history of the lineage under study.