![]() ![]() |
View species
Forest floor and wetlands
![]() Frond of Lorinseria areolata (Photo: A. Krings, CC BY-NC-SA 3.0)
![]() Sori of Lorinseria areolata (Photo: A. Krings, CC BY-NC-SA 3.0)
Lorinseria areolata - Netted chain fern (Blechnaceae). Bottomlands, moist forests, wetlands. Mt: Common; Pd: Common; CP: Common. Note that the pinna are usually borne alternately on the rachis (in contrast to the superficially similar Onoclea sensibilis, in which the pinna are usually borne oppositely [see below]). ![]() Frond of Onoclea sensibilis (Photo: A. Krings, CC BY-NC-SA 3.0)
![]() Frond detail of Onoclea sensibilis (Photo: A. Krings, CC BY-NC-SA 3.0)
Onoclea sensibilis - Sensitive fern (Onocleaceae). Moist forests, wetlands. Mt: Common; Pd: Common; CP: Common. Note that the pinna are usually borne oppositely on the rachis (in contrast to the superficially similar Lorinseria areolata, in which the pinna are usually borne alternately [see above]). Note also that the pinna margins become increasingly scalloped, moving from top of the frond to the base. ![]() Frond of Phegopteris hexagonoptera (Photo: A. Krings, CC BY-NC-SA 3.0)
![]() Sori of Phegopteris hexagonoptera (Photo: A. Krings, CC BY-NC-SA 3.0)
Phegopteris hexagonoptera - Broad beech fern (Thelypteridaceae). Moist forests. Mt: Common; Pd: Common; CP: Uncommon. Note the differential orientation of the basalmost pinna pair, compared to the other pinnae. A triangular shape to the frond is typical for the species. Logs, rock outcrops, and cliffs
![]() Frond of Pleopeltis michauxiana (Photo: A. Krings, CC BY-NC-SA 3.0)
![]() Sori of Pleopeltis michauxiana (Photo: A. Krings, CC BY-NC-SA 3.0)
Pleopeltis michauxiana - Resurrection fern (Polypodiaceae). Logs and outcrops. Mt: Common; Pd: Common; CP: Common. The frond shape is similar to Polypodium virginianum s.l. (see below), but that species lacks the rust-colored dots evident in Pleopeltis michauxiana. ![]() Frond of Polypodium virginianum (Photo: A. Krings, CC BY-NC-SA 3.0)
![]() Sori of Polypodium virginianum (Photo: A. Krings, CC BY-NC-SA 3.0). Note the absence of rust-colored dots (these present in the superficially similar Pleopeltis michauxiana).
Polypodium virginianum s.l. - Rockcap fern (Polypodiaceae). Moist outcrops. Mt: Common; Pd: Common; CP: Uncommon. More than one cryptic species has been recognized in this complex (see Weakley 2015), but due to the difficulty of determining species in the field, a single broad species (s.l. = sensu lato or in the "broad sense") is recognized here as a starting point to getting to know the complex. Note the absence of rust-colored dots (these present in the superficially similar Pleopeltis michauxiana [see above]). |
![]() ![]() |
||||||
View species
|
![]() ![]() |
View species
Pinnae ovate to triangular (or short-lanceolate)
|
![]() ![]() |
View species
Ultimate segments of fronds slender
![]() Frond of Botrypus virginianus (Photo: A. Krings, CC BY-NC-SA 3.0)
![]() Sori of Botrypus virginianus (Photo: A. Krings, CC BY-NC-SA 3.0)
Botrypus virginianus - Rattlesnake fern (Ophioglossaceae). Moist to somewhat dry forests. Mt: Common; Pd: Common; CP: Uncommon. ![]() Frond of Pteridium aquilinum (Photo: A. Krings, CC BY-NC-SA 3.0)
![]() Sori of Pteridium aquilinum (Photo: A. Krings, CC BY-NC-SA 3.0)
Pteridium aquilinum s.l. - Bracken fern (Dennstaedtiaceae). Dry forests, woodlands, flatwoods, and balds. Mt: Common; Pd: Common; CP: Uncommon. Some have begun to recognize the European element of this complex as P. aquilinum in a strict sense, applying the name P. latiusculum for the North American and eastern Asian element (see Weakley 2015). Ultimate segments of fronds relatively broad
![]() Frond of Sceptridium biternatum (Photo: A. Krings, CC BY-NC-SA 3.0)
![]() Sori of Sceptridium biternatum (Photo: A. Krings, CC BY-NC-SA 3.0)
Sceptridium biternatum - Southern grape fern (Ophioglossaceae). Moist forests. Mt: Common; Pd: Common; CP: Absent. ![]() Frond of Sceptridium dissectum (Photo: A. Krings, CC BY-NC-SA 3.0)
![]() Sori of Sceptridium dissectum (Photo: A. Krings, CC BY-NC-SA 3.0)
Sceptridium dissectum - Cut-leaf grape fern (Ophioglossaceae). Moist forests. Mt: Common; Pd: Common; CP: Rare. |