Onoclea sensibilis

Distribution Map: Based on vouchered plant specimens from wild populations. Cultivated occurrences are not mapped. View county names by placing the cursor over the map.

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Family:	ONOCLEACEAE
Species:	Onoclea sensibilis L.
Common Name:	SENSITIVE FERN
Status:	Native, FACW (DEP), FACW (NWPL)
Specimen:	View details of USF Herbarium specimens

** Not applicable or data not available.

Classification

Division
Class
Sub Class
Order	POLYPODIALES
Family	ONOCLEACEAE
Genus	Onoclea
Species	Onoclea sensibilis L. - SENSITIVE FERN

Citation

Citation	ONOCLEA SENSIBILIS Linnaeus, Sp. Pl. 1062. 1753.
Basionym:	**
Type:	VIRGINIA: Without data, Herb. Clifford 472, Osmunda 5 (lectotype: BM). Lectotypified by Reveal & C. E. Jarrvis, Taxon 58: 980. 2009.

** Not applicable or data not available.

Source

County	Herbaria	Literature Citation (If Applicable)
Alachua	USF
Calhoun	USF
Escambia	FLAS
Franklin	FSU
Gadsden	FSU
Gulf	FSU
Hamilton	FLAS
Holmes	FLAS
Jackson	FLAS
Jefferson	FSU
Leon	FLAS
Liberty	FLAS
Madison	USF
Okaloosa	FLAS
Santa Rosa	FLAS
St. Johns	USF
Walton	FLAS

Synonyms

– Denotes synonyms that are applicable to the state. Show these synonyms only

Synonym	Full Citation	Basionym	Type
Angiopteris sensibilis	Angiopteris sensibilis (Linnaeus) Nieuwland, Amer. Midl. Naturalist 2: 275. 1912.	BASIONYM: Onoclea sensibilis Linnaeus 1753.
Calypterium sensibile	Calypterium sensibile (Linnaeus) Bernhardi, J. Bot. (Schrader) 1801(1): 22. 1802.	BASIONYM: Onoclea sensibilis Linnaeus 1753.
Onoclea sensibilis var. genuina	Onoclea sensibilis Linnaeus, var. genuina Wherry, Amer. Fern J. 27: 58. 1937, nom. inadmiss.	BASIONYM: Onoclea sensibilis Linnaeus 1753.
Pterinodes sensibilis	Pterinodes sensibilis (Linnaeus) Kuntze, Revis. Gen. Pl. 2: 820. 1891.	BASIONYM: Onoclea sensibilis Linnaeus 1753.
Riedlea sensibilis	Riedlea sensibilis (Linnaeus) Mirbel, in Lamarck & Mirbel, Hist. Nat. Veg. 5: 74. 1803.	BASIONYM: Onoclea sensibilis Linnaeus 1753.
Onoclea augescens	Onoclea augescens Link, Fil. Spec. 37. 1841.
Onoclea interrupta	Onoclea interrupta (Maximowicz) Ching & P. C. Chiu, Fl. Tsinling. 2: t. 36(1-2). 1974.	BAISONYM: Onoclea sensibilis Linnaeus, var. interrupta Maximowicz 1859.
Onoclea obtusilobata	Onoclea obtusilobata Schkuhr, 24. Kl. Linn. Pfl.-Syst. 95, pl. 103. 1804-1809
Onoclea sensibilis (unranked) hemiphyllodes	Onoclea sensibilis Linnaeus, (unranked) hemiphyllodes Kiss & Kümmerle, Ann. Hist.-Nat. Mus. Natl. Hung. 24: 88. 1926.
Onoclea sensibilis forma acutisegmenta	Onoclea sensibilis Linnaeus, forma acutisegmenta Gruber, Amer. Fern J. 30: 46. 1940.		TYPE: PENNSYLVANIA: Berks Co.: Kutztown,
Onoclea sensibilis forma hemiphylloides	Onoclea sensibilis Linnaeus, forma hemiphylloides (Kiss & Kümmerle) Weatherby, Amer. Fern J. 26: 16. 1936.	BASIONYM: Onoclea sensibilis Linnaeus, (unranked) hemiphyllodes Kiss & Kümmerle 1926.
Onoclea sensibilis forma obtusilobata	Onoclea sensibilis Linnaeus, forma obtusilobata (Schkuhr) Gilbert, List. N. Amer. Pterid. 18. 1901.	BASIONYM: Onoclea obtusilobata Schkuhr 1809.
Onoclea sensibilis var. bipinnata	Onoclea sensibilis Linnaeus, var. bipinnata G. Lawson, Edinburgh New Philos. J. 19: 113. 1864.
Onoclea sensibilis var. interrupta	Onoclea sensibilis Linnaeus, var. interrupta Maximowicz, Prim. Fl. Amur. 337. 1859.
Onoclea sensibilis var. obtusilobata	Onoclea sensibilis Linneaus, var. obtusilobata (Schkuhr) Torrey, Fl. New York 2: 499. 1843.	BASIONYM: Onoclea obtusilobata Schkuhr 1809.
Ragiopteris obtusilobata	Ragiopteris obtusilobata (Schkuhr) C. Presl, Tent. Pterid. 96. 1836.	BASIONYM: Onoclea obtusilobata Schkuhr 1809.
Ragiopteris onocleoides	Ragiopteris onocleoides C. Presl, Tent. Pterid. 96, pl. 3(f. 9-10). 1836.

Specimens

Country	State	County	Date	Specimen	Notes
USA	Florida	Madison Co.	15 Jun 1991	R. Mears s.n.
USA	Florida	Alachua Co.	22 Apr 1968	D. B. Ward s.n.
USA	Florida	Calhoun Co.	03 Jun 2009	T. MacClendon 919
USA	Florida	St. Johns Co.	08 Aug 2013	C. Slaughter 18077
USA	Louisiana	Webster Par.	22 Sep 1971	R. D. Thomas 25917
USA	Georgia	Jenkins Co.	10 Apr 1964	W. H. Duncan 22266
USA	Arkansas	Polk Co.	08 May 1955	G. R. Cooley 4252
USA	Arkansas	Pike Co.	23 Oct 1932	D. Demaree 9974
USA	Louisiana	Beauregard Par.	27 Mar 1983	D. D. Taylor 2635
USA	Louisiana	Rapides Par.	27 Aug 1976	K. A. Vincent 547
USA	Georgia	Clarke Co.	28 Aug 2001	K. Francl 63
USA	Louisiana	Livingston Par.	20 Apr 2006	L. E. Urbatsch 9183
USA	Louisiana	Ouachita Par.	16 Apr 1968	R. Owens 334
USA	Georgia	Echols Co.	12 Aug 1970	J. H. Scudder 152
USA	North Carolina	Clay Co.	01 Sep 1977	J. H. Scudder 341
USA	North Carolina	Clay Co.	14 Sep 1970	J. H. Scudder 167
USA	Alabama	Escambia Co.	27 Nov 1980	G. Wilhelm 8206
USA	Louisiana	Caldwell Par.	12 Aug 1967	R. D. Thomas 4221
USA	South Carolina	Bamberg Co.	17 Jul 1976	D. H. Rembert, Jr. s.n.
USA	Louisiana	East Baton Rouge Par.	02 Apr 1976	L. McCook 80
USA	North Carolina	Avery Co.	24 Jul 1958	H. E. Ahles 47445
USA	New York	Essex Co.	1886	M. Rodman s.n.	"Sensitive Fern".
USA	Louisiana	East Feliciana Par.	05 May 1955	G. R. Cooley 4184
USA	New York	Tompkins Co.	06 Aug 1932	R. C. Bean s.n.
Canada	Ontario Prov.		05 Sep 1917	O. E. Jennings 15528
USA	Missouri	Oregon Co.	06 Apr 1963	P. L. Redfearn, Jr. 12048
USA	Wisconsin	Bayfield Co.	08 Aug 1986	B. F. Hansen 11174
USA	Kentucky	Laurel Co.	09 Oct 1985	R. L. Thompson 85-837	"Sensitive Fern".
USA	Massachusetts	Norfolk Co.	Sep 1883	M. Rodman s.n.
USA	Indiana	Ripley Co.	27 Jul 1989	T. G. Lammers 6820
USA	Connecticut		s.d.	Collector unspecified on label s.n.
USA	New York	Columbia Co.	16 Jun 1978	C. E. Nauman 352
USA	New York	Columbia Co.	16 Jun 1978	C. E. Nauman 352
USA	New England		s.d.	Collector unspecified on label s.n.
USA	Kentucky	Laurel Co.	27 Jun 1993	R. Mears AO-26	"Sensitive Fern".
USA	New York	Delaware Co.	11 Sep 1977	R. Dirig 340	Common Name: Sensitive Fern.
USA	New York	Essex Co.	27 May 2002	H. Pickett 4	"Sensitive Fern".
USA	Illinois	Will Co.	10 Jun 2010	S. R. Hill 38492
USA	Illinois	Alexander Co.	13 Aug 1999	S. R. Hill 31960
USA	Wisconsin	Sauk Co.	Aug 1910	R. Marshall 254201
USA	Kentucky	Metcalfe Co.	15 Jul 1961	E. M. Browne 4550
USA	Vermont	Windsor Co.	08 Aug 2009	D. H. Williams 2576
USA	Oklahoma	McCurtain Co.	17 Aug 1968	S. Stephens 27647
USA	New York	Albany Co.	1946	G. R. Cooley s.n.
USA	New York	Albany Co.	1945	G. R. Cooley 72
USA	Pennsylvania	Alleghany Co.	17 Aug 1902	F. G. Floyd 123b	"Sensitive Fern".
USA	New York	Orange Co.	21 Jun 1967	L. K. Henry s.n.
USA	Massachusetts	Middlesex Co.		C. W. Jenks s.n.
USA	New Hampshire	Hillsborough Co.	18 Aug 1926	C. F. Batchelder s.n.

Listed Status: Florida

Listed Status:	(Florida):Source - Plants in the Preservation of Native Flora of Florida Act. Chapter 5B-40, Florida Administrative Code. 1998, amended.
Endangered:	A species of plants native to the state that are in imminent danger of extinction within the state, the survival of which is unlikely if the causes of a decline in the number of plants continue, and includes all species determined to be endangered or threatened pursuant to the Federal Endangered Species Act of 1973, as amended.
Threatened:	Listed as Threatened Plants in the Preservation of Native Flora of Florida Act. Defined as species of plants native to the state that are in rapid decline in the number of plants within the state, but which have not so decreased in such number as to cause them to be endangered.

Listed Status: US

Listed Status: US	(U.S.) Source - List of Endangered and Threatened Wildlife and Plants under the provisions of the Endangered Species Act of 1973, as amended.
Endangered:	Any species which is in danger of extinction throughout all or a significant portion of its range.
Threatened:	Any species which is likely to become an endangered species within the foreseeable future throughout all or a significant portion of its range.

WAP: Wetland AssessmentProcedure

Wetland Assessment Procedure (WAP): Source - Southwest Florida Water Management District, Wetland Assessment Procedure Instruction Manual for Isolated Wetlands (March 2005).

AD:	Adaptive Species. Plant species designated as FAC or Upland by DEP, but commonly seen in the transition zone in limited numbers.
D:	Deep Species. Plant species commonly found in the deep zone, and designated either FAC or OBL by DEP.
OD:	Outer Deep Species. Plant species commonly found in the outer deep zone, and designated either FACW or OBL by DEP.
T:	Transition Species. Plant species commonly found in the transition zone, and designated either FACW or OBL by DEP.
U:	Upland Species. Plant species that are not expected to be seen in wetlands.

ANY - WAP critieria is not taken into consideration
Yes - Show results with WAP designations
No - Show results without WAP designations

FISC: Florida Invasive Species Council

FISC:

Source - Florida Invasive Species Council's 2017 List of Florida's Most Invasive Species

Category I - Species that are invading and disrupting native plant communities in Florida. This definition does not rely on the economic severity or geographic range of the problem, but on the documented ecological damage caused.

Category II - Species that have shown a potential to disrupt native plant communities. These species may become ranked as Category I, but have not yet demonstrated disruption of natural Florida communities.

DEP: Department of Environmental Protection

Wetland Status, Department of Environmental Regulation (DEP): Source - Delineation of the Landward Extent of Wetlands and Surface Waters, Chapter 62-340, Florida Administrative Code. 1994.

OBL:	Obligate wetland. Occurs almost always under natural conditions in wetlands.
FACW:	Facultative Wetland. Usually occurs in wetlands, but occasionally found in non-wetlands
FAC:	Facultative. equally likely to occur in wetlands or non-wetlands.

NWPL: National Wetland Plant List

National Wetland Plant List (NWPL): Source - Lichvar, R.W., M. Butterwick, N.C. Melvin, and W.N. Kirchner. 2014. The National Wetland Plant List: 2014 Update of Wetland Ratings. Phytoneuron 2014-41: 1-42.

OBL:	Obligate Wetland. Occurs almost always (estimated probability 99%) under natural conditions in wetlands.
FACW:	Facultative Wetland. Usually occurs in wetlands (estimated probability 67%-99%), but occasionally found in non-wetlands.
FAC:	Facultative. Equally likely to occur in wetlands or non-wetlands (estimated probability 34%-66%).
FACU:	Facultative Upland. Usually occurs in non-wetlands (estimated probability 67%-99%), but occasionally found in wetlands (estimated probability 1%-33%).
UPL:	Obligate Upland. Occurs in wetlands in another region, but occurs almost always (estimated probability 99%) under natural conditions in non-wetlands in the regions specified.

Persisting

Identifying species that appear as waifs or only periodically appear in the flora for a few seasons.

Any - Persisting critieria is not taken into consideration
Yes - Show results with a Persisting value of Y
No - Show results without Persisting value of N

Duration

Annual:	Plants that perform their entire lifecycle within a single growing season. All roots, stems, and leaves die at the end of the growing season. Over wintering seeds allow the next generation to appear.
Biennial:	A plant that is typically vegetative its first year and blooms the following season. Once it has bloomed and set seed, the plant dies. Garlic mustard is an example of a biennial.
Perennial:	These plants live for three or more seasons. Many perennials may not be mature enough to bloom during its first year. Perennial wildflowers re-grow each season from overwinter root material.

Category

Vascular:	Any of various plants that have the vascular tissues xylem and phloem. The vascular plants include all seed-bearing plants (the gymnosperms and angiosperms) and the pteridophytes (including the ferns, lycophytes, and horsetails). Also called tracheophyte.
Bryophyte:	A large group of seedless green plants including the mosses, liverworts, and hornworts. Bryophytes lack the specialized tissues xylem and phloem that circulate water and dissolved nutrients in the vascular plants. Bryophytes generally live on land but are mostly found in moist environments, for they have free-swimming sperm that require water for transport. In contrast to the vascular plants, the gametophyte (haploid) generation of bryophytes constitutes the larger plant form, while the small sporophyte (diploid) generation grows on or within the gametophyte and depends upon it for nutrition.
Lichen:	The mutualistic symbiotic association of a fungus with an alga or a cyanobacterium, or both. The fungal component of a lichen absorbs water and nutrients from the surroundings and provides a suitable environment for the alga or cyanobacterium. These live protected among the dense fungal hyphae and produce carbohydrates for the fungus by photosynthesis. Owing to this partnership, lichens can thrive in harsh environments such as mountaintops and polar regions. The more familiar lichens grow slowly as crusty patches, but lichens are found in a variety of forms, such as the tall, plantlike reindeer moss. The association between the different organisms in a lichen is so close that lichens are routinely referred to as a single organism, and scientists classify lichens using the name of the fungal component.

(Definitions from: American Heritage Science Dictionary)

Growth Habit

Intro paragraph to be provided by New York.

Vine:	DESCRIPTION TO BE PROVIDED BY NEW YORK.
Shrub:	DESCRIPTION TO BE PROVIDED BY NEW YORK.
Tree:	DESCRIPTION TO BE PROVIDED BY NEW YORK.
Et cetera:	DESCRIPTION TO BE PROVIDED BY NEW YORK.

State Rank

This numeric rank provides the relative rarity for each species based on a scale from 1 (very rare) to 5 (common). These ranks carry no legal status.

S1 - Typically 5 or fewer occurrences, very few remaining individuals, acres, or miles of stream, or some factor of its biology making it especially vulnerable in the state.
S2 - Typically 6 to 20 occurrences, few remaining individuals, acres, or miles of stream, or factors demonstrably making it very vulnerable in the state.
S3 - Typically 21 to 100 occurrences, limited acreage, or miles of stream in the state.
S4 - Apparently secure in the state.
S5 - Demonstrably secure in the state.
SE - State exotic or non-native.
SH - Historically known from the state, but not seen in the past 15 years.
SNA - Species for which a rank is not applicable. This is mainly those species which are now excluded from flora for various reasons.
SNR - Not yet ranked.
SX - Apparently extirpated from the state.

Global Rank

Each species' global rank is determined by NatureServe. These ranks carry no legal weight. The global rank reflects the species worldwide rarity.

G1 - Critically imperiled globally because of extreme rarity (5 or fewer occurrences), or very few remaining acres, or miles of stream) or especially vulnerable to extinction because of some factor of its biology.
G2 - Imperiled globally because of rarity (6 - 20 occurrences, or few remaining acres, or miles of stream) or very vulnerable to extinction throughout its range because of other factors.
G3 - Imperiled globally because of rarity (6 - 20 occurrences, or few remaining acres, or miles of stream) or very vulnerable to extinction throughout its range because of other factors.
G4 - Imperiled globally because of rarity (6 - 20 occurrences, or few remaining acres, or miles of stream) or very vulnerable to extinction throughout its range because of other factors.
G5 - Demonstrably secure globally, though it may be quite rare in parts of its range, especially at the periphery.
GH - Historically known, with the expectation that it might be rediscovered.
GNA - Species for which a rank is not applicable. NatureServe does not typically rank hybrid species.
GNR - Not yet ranked.
GX - Species believed to be extinct.

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Associated Ecological Communities

View a List of All Ecological Communities

For more information, contact: Richard Wunderlin or Bruce Hansen, Alan Franck, or Karla Alvarado

Web Development: USF Water Institute

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Citation Information:

Wunderlin, R. P., B. F. Hansen, A. R. Franck, and F. B. Essig. 2024. Atlas of Florida Plants (http://florida.plantatlas.usf.edu/). [S. M. Landry and K. N. Campbell (application development), USF Water Institute.] Institute for Systematic Botany, University of South Florida, Tampa.

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Definition: Vouchered Specimen

A voucher specimen is a pressed and thoroughly dried plant sample deposited in a herbarium, and is intended to be a permanent record supporting research purposes. A voucher may be a record of a plant's occurrence in a particular area, or a specific example of a plant used in a scientific investigation.

Proper vouchers display all the necessary attributes for complete identification of the plant, and are to be accompanied by accurate locality, habitat, collection time, and collector data.

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