This annual outing showcases several of this Marin County Open Space preserve’s rare plants, including the Tiburon mariposa lily (Calochortus tiburonensis), found only at this location, and Marin dwarf flax (Hesperolinon congestum). Other lovely flowers we can expect to see include Ithuriel’s spear (Triteleia laxa) and farewell-to- spring (Clarkia rubicunda). Starting at 4 p.m. participants will be treated to the delightful sight of clouds of the whitish starry flowers of soap plant (Chlorogalum pomeridianum) which seem to hover over the grasses. The many notable native, and relatively few non-native grasses will also be appreciated on this ramble. The top of the ridge affords 360-degree views and serpentine rock outcroppings host an array of interesting plants.