close up of few-flowerered clover (trifolium oliganthum) wildflower on a rainy spring day, castle rock state park, san francisco

america annual area bay bloom blooming bright california castle close clover colorful day delicate detail dew drizzle droplets drops fewflowerered flora floral flower francisco macro magenta native nature oliganthum park pasture pink purple rain rainy rock rose san shiny shortpodded spring springtime state states trifolium united up usa vibrant vivid water western wet wild wildflower