Scientific Name

Pentagramma triangularis (Kaulf.) Yatsk. et al.

Family

Pteridaceae

General

     Widely distributed in western North America, and nearly throughout California in preferred habitats.  Three subspecies are recorded from California; CI plants not yet identified to subspecies.

CI

     Generally occurs as small isolated plants or patches in well-shaded spots, including deep in crevices in rocks.  Not extremely common.  When mature copious numbers of yellowish spores produced undersides of fronds.

     Active from shortly after first rains (October/November) through mid to late May.

References

Seethis species on CalFlora.

The Jepson Manual (2012:  132, Pteridaceae, Ruth E.B. Kirkpatric, Alan R. Smith and Thomas Lemieux).

McAuley (1996:  373).

pentograma-5mar2013

Pentogramma triangularis on hillside to the south of Malibu Hall, CI (5 March 2013).

pentograma-28feb2013

Pentogramma triangularis, detail of frond, note the very dark rachis ("stem") typical of this species, on hillside to the south of Malibu Hall, CI (28 February 2013).

 pentograma-5mar2013-1

 Pentogramma triangularis on hillside to the south of Malibu Hall, CI.  The tall blade-like leaves belong to Dichelostemma capitatus (5 March 2013).

pentograma-7mar2013

Pentogramma triangularis on hillside to the south of Malibu Hall, CI (7 March 2013).

pentograma-19feb2005

Pentogramma triangularis on hillside to the south of University Glen and Malibu Hall, CI.  In the forground is Eucrypta chrysanthemifolia (with the fern-like leaves); to the back is Claytonia perfoliata (19 Februrary 2005).

 pentograma-10apr2013

Pentogramma triangularis at the end of its season, hillside to south of University Glen, CI (10 April 2013).