This is a list of San Francisco Bay Area wildflowers. The San Francisco Bay Area is unusual, for a major metropolitan area, in having ready access to rural and wilderness areas, as well as major urban parks.^{[citation needed]} Particularly in spring, these offer a rich range of wild flowers.^{[peacock prose]}

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The native plants of the San Francisco Bay Area are not always typical of other regions of California, and some species are endemic. This list covers the flowers of the Bay Area one is most likely to see within its nine counties. It starts with flowers that are (a) common and/or (b) already have an article in Wikipedia. Flowering shrubs and trees are only included if their flowers are visually significant.

The list is divided into forbs (herbs), shrubs, and trees.

Garden escapes are introduced species, plants that have established in the area - via their seeds, underground runners, or by exuberant growth - beyond the limits of gardens where planted. Some may be reproducing in the wild as invasive species and noxious weeds. Because of the large population of the Bay Area and its variety of garden styles, many plant species may be encountered as garden escapes.

Among those seen are:

• Acacia spp.
• Bougainvillea spp.
• Common Broom (Spanish, French, others)
• Cortaderia spp. (Pampas grass)
• Eucalyptus spp.
• Forget-me-nots (Myosotis discolor and M. latifolia)
• Ice plant - several genera
• Ivy - Hedera spp.
• Lavender
• Nassella tenuissima - Mexican feather grass
• Pelargonium spp.
• Pennisetum setaceum
• Rubus armeniacus – Himalayan Blackberry
• Searocket
• Vinca major

• List of California native plants
• Index: Flora of the San Francisco Bay Area

• Calflora Database — can create custom polygon on site's map to define scope of flora searches.
• CalPlants photo archive — can be searched by California county, or plant species.
• Jepson Interchange — search by plant name, geographical location, or other keys