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.

DRYOPTERIDACEAE

WOOD FERN FAMILY

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.

POLYSTICHUM

SWORD FERN

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.)

Native

P. kruckebergii W.H. Wagner

KRUCKEBERG'S SWORD FERN


Leaf 10–15(25) cm; petiole generally ± 1/10 blade length, base scales 2–3 mm wide, ovate to lanceolate; blade linear to very narrow-elliptic, 1- to partly 2-pinnate; 1° leaflets generally 6–15 mm, lowest ± deltate, longest < 1(1.5) cm
Sporangia: indusium entire or minutely toothed
Chromosomes: 2n=164
Ecology: UNCOMMON. Rocks, cliffs
Elevation: 2100–3200 m.
Bioregional distribution: High Cascade Range, n&c High Sierra Nevada, San Bernardino Mountains
Distribution outside California: to British Columbia, Montana, Utah
Probably fertile hybrid between P. lonchitis, P. lemmonii
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%20kruckebergii 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 kruckebergii
Retrieve dichotomous key for Polystichum
Overlay Consortium of California Herbaria specimen data by county on this map
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