Alfred Ernest Schuyler

Scirpus ancistrochaetus is a rare species of flowering plant in the sedge family known by the common names barbedbristle bulrush and northeastern bulrush. It is native to the northeastern United States from New Hampshire south to Virginia. It used to be found in Quebec but it is now thought to be extirpated there. It was also believed extirpated from the state of New York, but at least one population has been rediscovered in Steuben County in 2010. It is threatened by the loss and degradation of its wetland habitat. It is a federally listed endangered species. This bulrush produces clumps of

Scirpus flaccidifolius, the reclining bulrush, is an uncommon plant species endemic to a small region in Virginia and North Carolina. It is reported from only six populations in three counties in Virginia (Greensville, Sussex and Southampton) and one county in North Carolina (Northampton). All known populations are within 100 km of each other, though the species does not seem to be in danger of extinction. Scirpus flaccidifolius is unusual in the genus in having culms (flowering stalks) that lean against other vegetation instead of being stiff and erect. The species also has wider but less

Scirpus diffusus is a species of flowering plant in the sedge family known by the common name umbrella bulrush. It is endemic to California, where it can be found in several of the high mountain ranges from the Klamath Mountains to the Sierra Nevada. It grows in wetland habitat and other moist areas, such as mountain meadows. It is similar to Scirpus congdonii and was described from herbarium specimens once mislabeled as such. It is a perennial herb forming a clump of erect stems growing up to a meter tall, solitary stems sometimes occurring as well. The stems are three-angled and narrow at

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