planes

genus Platanus

Member of plane family (family Platanaceae)
dicots (class Magnoliopsida)
flowering plants (subphylum Angiospermae)

There are no other wild species of this genus in California.

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Jepson doesn’t include american sycamore (Platanus occidentalis), so I’m using another reference for distinguishing it.

london plane
Platanus × hispanica

• leaf lobes < ⅓ blade
• terminal lobe generally as long as wide
• Flora of North America believes that it is not naturalized

american sycamore
Platanus occidentalis

• leaf lobes generally shallower than for western sycamore (Platanus racemosa), but it can vary among leaves on a tree and depending on condition
• usually only a single fruit per stalk
• extremely rare in the bay area according to CalFlora

Toxicity of sycamore tree (Platanus spp.):
0 – Non-toxic.

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1 observed taxon / 2 unobserved taxons / 1 key

Chris’s observations: 14 (8 are research grade)

Locations:

• Alum Rock Park, San Jose: 3
• Picchetti Ranch OSP: 3
• Andrew Molera SP
• Coyote Creek Trail
• Ed R. Levin CP
• Pinnacles NP
• Santa Teresa CP
• Stevens Creek CP
• Ulistac Natural Area, Santa Clara
• Windy Hill OSP

Months:

• Jun.: 1
• Jul.: 3
• Aug.: 1
• Sep.: 0
• Oct.: 2
• Nov.: 0
• Dec.: 2
• Jan.: 3
• Feb.: 2

For more details, use advanced search.

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Taxon info: iNaturalist – Calflora – Jepson eFlora – FNA

Bay Area species: iNaturalist – Calflora