field madder

Sherardia arvensis

Member of madder family (family Rubiaceae)
dicots (class Magnoliopsida)
white in flowering plants

There are no other wild species of this genus anywhere.

See also bedstraws (genus Galium).

Chris’s observations: 13 (all are research grade)

Locations:

Edgewood Park & Natural Preserve: 3
Russian Ridge OSP: 2
Long Ridge OSP
Pleasanton Ridge RP
Santa Teresa CP
Skyline Ridge OSP
Stevens Creek CP
Sunol Wilderness RP
Sweeney Ridge National Recreation Area
Wilder Ranch SP

Months:

Mar.: 2
Apr.: 6
May: 5

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Not all sites include this taxon:

Sherardia arvensis → iNaturalist – Calflora – CalPhotos – Jepson eFlora
not yet listed → FNA

Bay Area species: iNaturalist – Calflora