Jepson Flora Project: Jepson Interchange    

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Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California
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Alan R. Smith and Thomas Lemieux

Perennial, in soil or rock crevices; rhizome generally short-creeping, suberect, or erect, scales large, generally tan to brown, generally 1-colored
Leaves generally tufted, 5–200+ cm, generally ± alike; petiole generally firm, base generally darker, with 2–many vascular strands; blade 1–4-pinnate, often with scales, hair-like scales, hairs (except clear, needle-like hairs generally 0), or short-stalked glands on axes, sometimes between veins, veins free to netted; 1° and 2° axes generally grooved on upper side
Sporangia: sori round, less often oblong or J-shaped, along or at tips of veins; indusia peltate, round-reniform, oblong to linear, J-shaped, hood-like, or cup-like, rarely 0; spores elliptic, winged, ridged, or spiny, scar linear
Genera in family: ± 60 genera, > 1000 species: worldwide, especially tropical, wooded areas. Woodsia sometimes in Woodsiaceae; Athyrium, Cystopteris sometimes in Athyriaceae.



Rhizome short-creeping or ascending to suberect, stout
Leaf: petiole stout, base firm, scaly, in X -section with many ± round or ovate vascular strands in an arc; blade 1-pinnate, generally thick, leathery, veins regularly netted
Sporangia: sori round; indusium peltate, not persistent
Species in genus: ± 20 species: generally eastern Asia
Etymology: (Greek: arch, from pattern of netted veins)


C. falcatum (L.f.) C. Presl

Rhizome with old, large, light- to dark-brown, entire to jagged scales
Leaf 30–80 cm; 1° leaflets 8–11 cm, often with 1 lobe on distal side of base, teeth 0–10 mm, < 6 mm wide, without bristle-like tips, margin thickened
Chromosomes: 2n=164
Ecology: Generally moist cliffs, banks, crevices
Elevation: < 900 m.
Bioregional distribution: Outer North Coast Ranges, n Sierra Nevada Foothills, San Joaquin Valley, Central Coast, Outer South Coast Ranges, South Coast, Western Transverse Ranges, San Gabriel Mountains, Peninsular Ranges (Santa Ana Mtns)
Distribution outside California: also se US; native to eastern Asia
cultivated as ornamental.

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bioregional map for CYRTOMIUM%20falcatum being generated
YOU CAN HELP US make sure that our distributional information is correct and current. If you know that a plant occurs in a wild, reproducing state in a Jepson bioregion NOT highlighted on the map, please contact us with that information. Please realize that we cannot incorporate range extensions without access to a voucher specimen, which should (ultimately) be deposited in an herbarium. You can send the pressed, dried collection (with complete locality information indicated) to us (e-mail us for details) or refer us to an accessioned herbarium specimen. Non-occurrence of a plant in an indicated area is difficult to document, but we will especially value your input on those types of possible errors (see automatic conversion of distribution data to maps).

Retrieve Jepson Interchange Index to Plant Names entry for Cyrtomium falcatum
Retrieve dichotomous key for Cyrtomium
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