SCIENTIFIC NAME: Scirpus
COMMON NAME(S): Bulrushes
FAMILY: CYPERACEAE - Sedge family
ORIGIN: Worldwide, about 100 spp.
HABITAT: Mostly wetlands (swamps, marshes, riverbeds)
HEIGHT: Variable, most 1-3'
CHARACTERISTICS: Stems jointed, solitary or tufted, often 3-sided
LEAVES: Alternate, leaves narrowly- or broadly-linear, grass-like, often rough along margins
FLOWERS: Small, aggregated into spikelets arranged on branched-flower stems usually with several leaf-like bracts at the base
FLOWERING SEASON: Spring, summer, fall
FRUITS: A small nutlet, sometimes 3-angled
ALLERGENIC PRINCIPLES: Pollen allergens
ALLERGENIC PROPERTIES: Respiratory
COMMENTS: A few reports of pollinosis for this genus have been recorded from outside the region. About 20 species occur in the Southeast, but exposure is probably limited by their primarily wetland habitats. S. americanus Persoon is probably the most common.