Perennial herb from tough, extensive rhizomes; stems erect, simple, hard, pithy, 100-200 cm tall.
Sheaths lobed at the top, the lobes ear-like, membranous, veined; blades convex on the outer surface, 5-10 (12) mm wide.
Inflorescence a densely crowded, terminal, cylindrical spike; female and male portions of the spikes separated by 0.5-8 cm; the female portion below, brown, 15-20 cm wide, the male portion above, slightly wider than the female; female flowers subtended by a linear bract, the bract swollen at the top; stigmas linear; pollen grains single.
Follicles, dry, dehiscent, ellipsoid, long-hairy, about 1 mm long.
If more than one illustration is available for a species (e.g., separate illustrations were provided for two subspecies) then links to the separate images will be provided below. Note that individual subspecies or varietal illustrations are not always available.
Illustration Source: The Illustrated Flora of British Columbia
Present from Spring to Summer
Source: The USDA
Synonyms and Alternate Names:
Typha angustifolia var. calumetensis Peattie
Typha angustifolia var. elongata (Dudley) Wiegand