Reported at Whiting Ranch earlier, but no documentation. Closest appears to be this iNat observation, well out of the park:
iNaturalist Observation
NATIVE Note: observed within 50 meters of the park boundary. To be looked for in the park.
CULTIVATED, (Native to South Africa), Note: irrigated and cultivated at McFadden House offices and landscape.
NATIVE, Note: Not native to region. Several plants established (assumed from restoration) 150 m from park boundary. Should be looked for within the adjacent area.
NATIVE, Observations of this sp. are likely to be L. gracilis. L. californica being a taxon further North.
NATIVE, Note: ID not confirmed from photo.
CULTIVATED Note: in irrigated, cultivated landscape. Intergeneric hybrid of Catalpa and Chilopsis.
CULTIVATED (hybrid of C. creticus and C. ladanifer, both of European origin). Note: growing in irrigated landscape at the park margin.
Note: naturalized within 100 meters of park boundary.
CULTIVATED, (native to Eastern Europe), Note: cultivated and irrigated at McFadden House offices and landscape.
NATIVE, Collected as Carex sp., but appearing to be this taxon. Awaiting confirmation of identification.
NATURALIZED, (Native to Old World), Note: 10-15m from park boundary, adjacent to landscaping.
Note: observed within 20 meters of park boundary.
Note: observed within 50 meters of park boundary.
CULTIVATED, (Hybrid origin, probably from Southern European and Mediterranean parents), Note: at McFadden House offices and landscape.
CULTIVATED, (native to Africa, Europe, Western Asia, and the Mediterranean), Note: a single mature plant at trailside is not far from urbanization and likely planted. Unlikely to persist and multiply.
CULTIVATED Note: just meters outside park boundary in urban edge landscape.
CULTIVATED, Note: at McFadden House offices and irrigated landscape.
Native in larger region, but CULTIVATED at site, Note: at McFadden House offices and irrigated landscape.
Note: observed within 10 meters of park boundary.
NATIVE, Note: Within 70 meters of park boundary.
NATIVE, Recent revision of the clade has resulted in this sp. being unlikely in the park. Records are likely Diplacus xaustralis.
NATIVE, Note: likely valid, but cannot confirm the ID from the photos.
NATIVE, Note: An observation is ca 400m outside the park boundary. To be looked for.
NATURALIZED (nativity complex), Note: Hybrids of P. xhispanica and P. racemosa suspected, but not certain. Characters intermediate.
NATURALIZED, (native to southern Eurasia), Note: within a few meters of the park boundary.
NTURALIZED, (probably native to Southeast Asia), Note: at urban edge, a few meters outside park boundary; appears planted.
Note: observed within 200 meters of park boundary. To be looked for within the park.
Note: a 2000 collection of this important non-native was within 20 meters of the park boundary. It has not been relocated and presumed extirpated.
CULTIVATED, Cultivated (native to Europe) Note: in irrigated, cultivated landscape, although seedlings present.
CULTIVATED, (native to Africa, the Americas, southern Asia and Australasia), Note: Single plant at trail margin, probably planted and receiving irrigation.
NATIVE, Note: ID not confirmed from photo.
Note: a collection of this species in 2008 is about 200 meters outside the park boundary in wildlands, but nonetheless interesting and needs to be examined.