A N F Keys
1 Blade gradually tapered in last 150−200 mm to tip; staminate and pistillate spikes usually separated by space to 15 mm, cinnamon brown; bractlets subtending flowers usually present; pollen grains single .. Typha domingensis [pics]
1' Blade gradually tapered in last 50−100 mm to tip; staminate and pistillate spikes always butted without space, dark brown but pistillate spike initially green; bractlets subtending flowers absent; pollen grains in tetrads .. Typha latifolia [pics]
The text of the above keys used with permission from
A Naturalist's Flora of the Santa Monica Mountains and Simi Hills, California
© Copyright
Barry A. Prigge and Arthur C. Gibson
2013