People for Scale
A picture is worth a thousand words, and sometimes it's easier to…
Pertusaria andersoniae
Specimen StoriesWomen in Science
Some of our herbarium specimens are of incredibly rare species. This is…
Phalaenopsis
Phalaenopsis, the moth orchids, are perhaps the most commonly cultivated orchid. With…
Phenology and Herbarium Specimens
As habitats get warmer, a plant's life cycle can change. For example, when spring…
Philodendron
Specimen StoriesFocus on Science
Greek: Philo- (love) dendron (tree) There are close to 500 species of…
Picnic in Central Park
Since its completion in 1876, Central Park has been a favorite destination…
Pilostyles
Upon first glance, this mounted specimen may seem nothing more than an…
Pitcher Plants
Pitcher Plants sometimes attract insects to their specialized leaves with nectar or…
Pitcher plants: so nice, they evolved thrice!
Pitcher plants are famous (or perhaps infamous) for their carnivorous structures that…
Plant Inspired Innovations: Nepenthes and Slippery Liquid-Infused Porous…
Most plants absorb nutrients from the soil through their roots. Carnivorous plants…
Plant species named after Alice Eastwood
Several botanists have honored Eastwood's contributions to science by naming new plant…
Plants of Sítio Roberto Burle Marx
Roberto Burle Marx was an artist, a landscape architect and an early…
Pleurothallid orchids of Mexico!
The Pleurothallid orchids are a clade of related genera, meaning they are…
Point Judith
Can't get away to the beach? Let these field photographs and algae…
Polka-dot Ferns
Unlike flowering plants, ferns reproduce with spores instead of seeds. Fern spores…
Pollination after dark
Although sometimes overlooked, bats are vital pollinators for many economically important species…
Prairie White Fringed Orchid
Nearly all of the habitat of the endangered Prairie White Fringed Orchid…
Prosthechea of Mexico!
Prosthechea is a large tropcial American genus of 125 known species, occuring…