maidenhair ferns

genus Adiantum

Member of brake family (family Pteridaceae)
leptosporangiate ferns (subclass Polypodiidae)
ferns (class Polypodiopsida)

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

frond is 2–3-pinnate [terminal leaflets are palmate]
terminal leaflets are cut/lobed often < ¼ way to base, margins converging at 90–180° angle

frond is 2–3-pinnate [final division is palmate]
terminal leaflets are cut/lobed often > ¼ to ⅔ way to base, margins converging at 45–90° angle

2 observed taxons / 1 unobserved taxon / 1 key

Chris’s observations: 25 (all are research grade)

Locations:

Months:

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Bay Area species: iNaturalist – Calflora