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Key to families | Table of families and genera
Indexes to all accepted names and synonyms:
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Plant terrestrial; rhizome hairy [scaly], from bud near stipe base or not.
Leaf: alike, glabrous or hairy (scaly); stipe strongly grooved adaxially; blade generally 1–5- pinnate; veins pinnate from midrib, generally forked beyond, free except sometimes at margin of fertile segments.
Sporangia: at or near margin, generally ± covered by false indusia; true indusium 0 or inner, linear [conical or cup-, purse- or saucer-like], opening toward margin [or fused with it to form cup]; stalk cells in 1–3 rows; spores spheric or elliptic.
± 11 genera, ± 170 species: especially tropics. [Smith et al. 2006 Taxon 55:705–731] Variously defined, now to exclude some previously included genera, species (Smith et al. 2006); Pteridium sometimes in its own family. —Scientific Editors: Alan R. Smith, Thomas J. Rosatti.
Unabridged references: [Smith et al. 2006. A classification for extant ferns. Taxon 55:705–731]
Rhizome generally deep, long-creeping, branched; often forming dense stands; dead leaves persistent; scales 0.
Leaf: stipe ± black near base, with dense, ± brown hairs, straw-colored above, ± glabrous; blade 2–4- pinnate, abaxially generally hairy; pinnae with nectaries in axils or not; veins free except at margin of fertile segments.
Sporangia: generally continuous except at sinuses, on vein tips and veins connecting vein tips, ± covered by false indusium ( sterile segment margins similarly modified); true indusium inconspicuous or 0; spores spheric.
± 5 species: temperate, tropics. (Greek: small fern) [Tryon 1941 Contr Gray Herb 134:1–31, 37–67] Often considered (e.g., by Tryon) to comprise 1 ± worldwide, highly variable sp., but especially in tropics, subtrops, species seem distinct. Plants belonging to this genus are among the most common, wide-ranging in the world, are often invasive, and regenerate quickly and vigorously after fires.
Previous taxon: Dennstaedtiaceae
Next taxon: Pteridium aquilinum var. pubescens
Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html [accessed on month, day, year]
Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on [month, day, year].
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|Bioregions in which taxon occurs||Markers link to CCH specimen records. If the markers are obscured, reload the page [or change window size and reload]. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.|
Chart based on elevation range in Manual and elevations and coordinates of CCH records.
Data provided by the participants of the Consortium of California Herbaria.
Note: About half of the CCH records include both elevation and coordinates.
| Data provided by the participants of the Consortium of California Herbaria.
View all CCH records