Jepson Flora Project: Jepson Interchange    

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Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California
For up-to-date information about California vascular plants, visit the Jepson eFlora.



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 generally suberect to erect, often stout
Leaf: petiole stout, firm, generally densely scaly, in X -section with many round vascular strands in an arc; blade generally 1–3-pinnate, thin to leathery, scaly, veins generally free, rarely casually joined; 1° leaflet bases often wider on distal side; teeth generally including bristle-like tips that are < 2 mm
Sporangia: sori round; indusium generally peltate, sinus 0
Species in genus: ± 175+ species: ± worldwide
Etymology: (Greek: many rows, from rows of sori on type sp.)


P. lonchitis (L.) Roth


Leaf generally 10–60 cm; petiole generally 1/6–1/10 blade length, base scales 2–4(5) mm wide, ovate-lanceolate; blade linear, 1-pinnate; 1° leaflets generally 1–3(4) cm, lowest ± deltate, ± 1/2 length of longest
Sporangia: indusium entire or minutely toothed
Chromosomes: 2n=82
Ecology: UNCOMMON. Generally shaded, moist or wet, granite or limestone crevices or bluffs
Elevation: 1800–2600 m.
Bioregional distribution: Klamath Ranges, High North Coast Ranges (Yolla Bolly Mtns), n High Sierra Nevada
Distribution outside California: to Alaska, e Canada, Rocky Mtns, Eurasia
Horticultural information: DRN: 4, 5 &IRR: 1, 2, 3, 6 &SHD: 7, 15, 16, 17; DFCLT.
See the CNPS Inventory for information about endangerment and rarity.
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bioregional map for POLYSTICHUM%20lonchitis 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 Polystichum lonchitis
Retrieve dichotomous key for Polystichum
Overlay Consortium of California Herbaria specimen data by county on this map
Show other taxa with the same California distribution | Read about bioregions | Get lists of plants in a bioregion
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