"The Botanical Society of America encompasses all areas of plant biology, including development, physiology, reproductive biology, evolution, phycology, genetics, mycology, ecology, systematics, molecular biology, and paleobotany. The BSA is one of the world's largest societies devoted to the study of plants and allied organisms, and functions as an umbrella organization covering all specialties."
This "flagship journal of the Botanical Society of America (BSA)" contains "peer-reviewed, innovative, significant research of interest to a wide audience of plant scientists in all areas of plant biology (structure, function, development, diversity, genetics, evolution, systematics), all levels of organization (molecular to ecosystem), and all plant groups and allied organisms (cyanobacteria, algae, fungi, and lichens)."
"A monthly, online-only, open access, peer-reviewed journal promoting the rapid dissemination of newly developed, innovative tools and protocols in all areas of the plant sciences, including genetics, structure, function, development, evolution, systematics, and ecology."
"An informal communication published four times a year, with information on upcoming meetings, courses, field trips, news of colleagues, new books, and professional opportunities."
"The New York Botanical Garden is an advocate for the plant kingdom. The Garden pursues its mission through its role as a museum of living plant collections arranged in gardens and landscapes across its National Historic Landmark site; through its comprehensive education programs in horticulture and plant science; and through the wide-ranging research programs of the International Plant Science Center." Includes the NYBG Plant Information Service, the C.V. Starr Virtual Herbarium, the Index to American Botanical Literature, and more.
"[A] source of information for the distribution of plants within the state, as well as information on plant habitats, associated ecological communities, and taxonomy. In addition, users can learn about the location of vouchered specimens and see images to get a better visual for each plant." An interactive map allows you to click on a county to get very local plant species. From the New York Flora Association.
"The PLANTS Database provides standardized information about the vascular plants, mosses, liverworts, hornworts, and lichens of the U.S. and its territories." Provided by the U.S. Department of Agriculture (USDA).