woodland stars

genus Lithophragma

Member of alumroot tribe (tribe Heuchereae)
saxifrage family (family Saxifragaceae)
dicots (class Magnoliopsida)
flowering plants (subphylum Angiospermae)

There are no other wild species of this genus in the bay area.

hillside woodland star
Lithophragma heterophyllum

hillside woodland star
Lithophragma heterophyllum

hypanthium base truncate
petals with 3 lobes

bolander’s woodland star
Lithophragma bolanderi

hypanthium base obtusely tapered or hemispheric [example]
petals entire or with > 3 lobes
very rare: east bay

san francisco woodland-star
Lithophragma affine

san francisco woodland-star
Lithophragma affine

smallflower woodland star
Lithophragma parviflorum

basal leaves lobed > ¾ to base to 3-parted
most proximal cauline leaf 3-parted
petals white or pink
very rare

2 observed taxons / 2 unobserved taxons / 1 key

Chris’s observations: 61 (59 are research grade)

Locations:

Edgewood County Park & Natural Preserve: 11
Henry Coe SP: 11
Russian Ridge OSP: 6
Stevens Creek CP: 6
Castle Rock SP: 3
Pleasanton Ridge RP: 3
Sanborn CP: 3
Almaden Quicksilver CP: 2
Joseph D. Grant CP: 2
Sierra Azul; OSP: 2
Skyline Ridge OSP: 2
Waterdog Lake & Open Space: 2
Alum Rock Park, San Jose
Calero CP
Dr. Aurelia Reinhardt Redwood RP
Foothills Nature Preserve, Palo Alto
Hidden Villa, Los Altos Hills
Pinnacles NP
San Pedro Valley CP
Sunol Wilderness RP

Months:

Mar.: 10
Apr.: 25
May: 16
Jun.: 10

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Taxon info: iNaturalist – Calflora – Jepson eFlora – FNA

Bay Area species: iNaturalist – Calflora