Vernal Pools

Geology & Hydrology Millions of years of geology and evolution have created the spectacular vernal pools at Sacramento County’s Mather Field. These are exceptional examples of a rare wetland ecosystem…

Little Quaking Grass

Little Quaking Grass is a member of the grass family.  Each grass flower is made up of a pair of tiny bracts, the stamens and pistil.  The flowers are grouped…

Medusahead

Medusahead is a member of the grass family.  Grass flowers are smaller versions of regular flowers but without the petals.  In Medusahead, each floret (cluster of flowers) is made up…

Purple Needlegrass

Purple Needlegrass is a member of the grass family.  Each grass flower is made up of a pair of tiny bracts and the stamens and pistil.  Because grasses are wind-pollinated,…

Winged Water Starwort

Winged Water Starwort is a member of the water starwort family.  The plants are rooted in the vernal pool bottom and have long, stringy stems which end in a cluster…

Woolly Marbles

Woolly Marbles is a member of the sunflower family.  Each flowerhead is made up of 20 or more disk flowers.  These are well hidden in the cob-webby fuzz.  The plants…