This page is based on the 1993 Jepson Manual.
Please see the Jepson eFlora for up-to-date information about California vascular plants.
|Jepson Flora Project: Jepson Interchange|
|TREATMENT FROM THE JEPSON MANUAL||
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Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California
Print edition is available from the University of California Press
|The second edition of The Jepson Manual (2012) is available from the University of California Press|
|See also the Jepson eFlora, which parallels the Second Edition|
Plant in soil; rhizome hairy, less often scaly, sometimes from bud near petiole baseRetrieve key for DENNSTAEDTIACEAE
Leaves alike; petiole strongly grooved on upper side, glabrous or hairy, rarely scaly, in X -section vascular strands 1many in U shape; blade generally 15- or more pinnate; axes, blades glabrous or hairy, rarely scaly; veins pinnate from midrib, generally forked beyond, free except sometimes at margin of fertile segments
Sporangia at or near margin, generally ± covered by reflexed segment margins (false indusia); true indusium 0, or linear, purse-shaped, opening toward margin or fused with it to form cup; stalk cells in 13 rows; spores spheric or elliptic, scar of 3 radiating branches or linear
Genera in family: ± 17 genera, ± 375 species: especially tropical. Variously defined; Pteridium sometimes in its own family.