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  Catalogue »  Plantae »  Tracheophyta »  Polypodiopsida »  Polypodiales »  Onocleaceae »  Onoclea     [species]
Genus:  Onoclea
sensitive fern

 
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KingdomPlantae PhylumTracheophyta
ClassPolypodiopsida OrderPolypodiales
FamilyOnocleaceae GenusOnoclea
 sensitive fern
  10.10.2019 20:43:42 Nadiya Sytschak Надія Сичак
 plantarium.ru:  Onoclea
Plants terrestrial. Stems creeping, stolons absent. Leaves strongly dimorphic, fertile leaves usually shorter, greatly contracted, persistent 2-3 years, sterile leaves dying back in winter. Petiole of sterile leaf ca. 1-1.5 times length of blade, petiole of fertile leaf 2-6 times length of blade, bases swollen and persisting as trophopods over winter; vascular bundles 2, lateral, lunate in cross section. Blade of sterile leaf deltate, pinnatifid to pinnate-pinnatifid proximally, reduced and shallowly pinnatifid distally, herbaceous to papery, blade of fertile leaf linear-oblong, 2-pinnate, leathery. Pinnae not articulate to rachis, segment margins of sterile blades entire to sinuate or shallowly lobed, margins of fertile pinnules strongly revolute and forming hardened beadlike structures; proximal pinnae largest or nearly so, sessile or adnate, equilateral; costae adaxially flat; indument on both sides of linear to lanceolate scales and/or multicellular hairs on rachis and costae. Veins reticulate with areoles lacking included veinlets in sterile leaves, veins free in fertile leaves. Sori covered by strongly revolute margins of pinnae, ± round; indusia vestigial, triangular, persistent but not easily seen in mature leaves. Spores greenish, with a few low folds and numerous, minute, echinate-cristate elements. x = 37.
     
Rank Taxa
Family «« Onocleaceae     0 (1)
Genus     Onoclea 1 2 12
Nested Taxa
Species Onoclea hintonii    
Species Onoclea sensibilis L.    

Experts: Nadiya Sytschak: Plantae · marina_golivets: Plantae · Ekaterina Kalashnik: Plantae · anyameadow: Plantae · Ivan Danylyk: Plantae · leopolitanus: Plantae · Tatjana Sova: Plantae · marina_golivets: Tracheophyta

Taxa SubTaxa Species Images Material
Species: Onoclea hintonii
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Species: Onoclea sensibilis L.
sensitive fern
1 12
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Onoclea sensibilis - sensitive fern
 
Nikolai Yunakov

  29.05.2020 18:31:11
06.06.2020 19:09:49    #156225
IMG_26082.jpg
Views: 19


Melrose, Spot Pond Brook
29.05.2020 (29.05.2020 18:31:11)
Zoom
 
Onoclea sensibilis - sensitive fern
 
Nikolai Yunakov

  14.05.2020 14:46:35
15.05.2020 21:00:50    #151545
IMG_21160.jpg
Views: 31


Melrose, Oakdale Park
14.05.2020
ZoomRelated images: 3
 
Onoclea sensibilis - sensitive fern
 
Nikolai Yunakov

  29.04.2019 16:43:57
01.05.2019 13:19:36    #107851
20190429_164357.jpg
Views: 52


Melrose, Spot Pond Brook
29.04.2019 (29.04.2019 16:43:57)
ZoomRelated images: 3
 
Onoclea sensibilis - sensitive fern
 
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  24.06.2018 17:11:19
25.06.2018 22:38:57    #77522
20180624_171119.jpg
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Middlesex Fells Reservation
24.06.2018 (24.06.2018 17:11:19)
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Onoclea sensibilis - sensitive fern
 
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  15.04.2018 15:20:21
16.04.2018 04:39:49    #65052
IMG_9584.jpg
Views: 187


Decatur, Ira B. Melton Park
15.04.2018 (15.04.2018 15:20:21)





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