Tule Ponds at Tyson
(Fresh Water)

Vegetation in the Tule Ponds area were planted to represent native plants of the San Francisco Bay area.  The majority of the trees, shrubs and herbaceous plants represent a Riparian Woodland, which are usually found along streams and rivers in the San Francisco Bay area.  A few plants are from the Valley and Foothill Woodland as well as Chaparral.  

Tyson Lagoon vegetation present a freshwater marsh and open aquatic area consisting primarily of cattails, bulrush, and sedges.  Plants that are adapted to water do not have the intricate root and leaf structure like land plants.  Aquatic plants have water all around them so they do not worry about transporting water through a root system.   

There are many wildflowers that bloom throughout the year at Tule Ponds and Tyson Lagoon.  In this section we have tried to represent the major types, but this is not a complete list.  Many species are non-native, and have seeded themselves through different dispersal mechanisms.   There are many “weeds” in this area that do not serve any purpose in the ecosystem.  Naturalized plants, are non-native, but have served a useful purpose in the area, especially as a food source for the wildlife.

Aquatic plants have evolved a system that can tolerate submergences in water. They can be found in water including ponds, lakes, marshes, swamps, calmer areas of rivers and streams. They include the aquatic angiosperms (flowering plants), pteridophytes (ferns), and bryophytes (mosses, hornworts, and liverworts).



  • Broad leaved Cattail
  • Hardstem Bulrush
  • Flat Sedge
  • Water Smartweek, Pink flowered knotweed.
  • Curly Dock

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