Thomas Leo Ogren is essentially a horticultural epidemiologist, researching the connections (positive and negative) between human health and the planted urban landscape. Author, speaker, consultant and worldwide plant collector, Tom has a master of science degree in agriculture/horticulture, with an emphasis on plant flowering systems. He is the creator of OPALS™, the world's first numerical plant-allergy scale. Tom is often credited as being the first to have discovered what is now known as "botanical sexism" in the urban landscape.
Botanical Sexism Cultivates Home-Grown Allergies
It's the time year for watery eyes and itchy noses, and if you're among the afflicted, you may be surprised to learn that decades of botanical sexism in urban landscapes have contributed to your woes.