The term "aquatic plants" (SAV) refers to all aquatic flowering plants. In the San Francisco estuary, SAVs include sago pondweed (Stuckenia pectinata, formerly Potamogeton (pectinatus), seaweed (Zostera marina), and surf grass (Phyllospadix torreyi and P.
San Francisco Lessingia is an elongated annual with scattered, branched stems that grow 10 to 30 cm tall. The leaves and stems are covered with grayish, loosely woven hairs.
Flowering plants also reproduce sexually. Pollen is carried by insects or carried from flower to flower by the wind. After the flowers are fertilized, a fruit with an enclosed seed is formed.
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