Semantic search
E
- Equisetum variegatum subsp. alaskanum
- Equisetum variegatum subsp. variegatum
- Equisetum ×ferrissii
- Equisetum ×litorale
- Equisetum ×mackaii
- Equisetum ×nelsonii
G
- Ginkgo
- Ginkgo biloba
- Ginkgoaceae
- Gleicheniaceae
- Grammitidaceae
- Grammitis
- Grammitis nimbata
- Gymnocarpium
- Gymnocarpium appalachianum
- Gymnocarpium disjunctum
- Gymnocarpium dryopteris
- Gymnocarpium jessoense
- Gymnocarpium jessoense subsp. parvulum
- Gymnocarpium robertianum
H
- Huperzia
- Huperzia appalachiana
- Huperzia haleakalae
- Huperzia lucidula
- Huperzia miyoshiana
- Huperzia occidentalis
- Huperzia porophila
- Huperzia selago
- Hymenophyllaceae
- Hymenophyllum
- Hymenophyllum tayloriae
- Hymenophyllum tunbrigense
- Hymenophyllum wrightii
- Hypolepis
- Hypolepis repens
I
- Isoëtaceae
- Isoëtes
- Isoëtes acadiensis
- Isoëtes bolanderi
- Isoëtes boomii
- Isoëtes butleri
- Isoëtes caroliniana
- Isoëtes echinospora
- Isoëtes engelmannii
- Isoëtes flaccida
- Isoëtes georgiana
- Isoëtes howellii
- Isoëtes lacustris
- Isoëtes lithophila
- Isoëtes louisianensis
- Isoëtes maritima
- Isoëtes melanopoda
- Isoëtes melanospora
- Isoëtes nuttallii
- Isoëtes occidentalis
- Isoëtes orcuttii
- Isoëtes prototypus
- Isoëtes riparia
- Isoëtes tegetiformans
- Isoëtes tuckermanii
- Isoëtes virginica
J
- Juniperus
- Juniperus ashei
- Juniperus californica
- Juniperus coahuilensis
- Juniperus communis
- Juniperus communis var. depressa
- Juniperus communis var. megistocarpa
- Juniperus communis var. montana
- Juniperus deppeana
- Juniperus deppeana var. deppeana
- Juniperus flaccida
- Juniperus flaccida var. flaccida
- Juniperus horizontalis
- Juniperus monosperma
- Juniperus occidentalis
- Juniperus occidentalis var. australis
- Juniperus occidentalis var. occidentalis
- Juniperus osteosperma
- Juniperus pinchotii
- Juniperus scopulorum
- Juniperus sect. Juniperus
- Juniperus sect. Sabina
- Juniperus virginiana
J cont.
K
L
- Larix
- Larix laricina
- Larix lyallii
- Larix occidentalis
- Lomariopsis
- Lomariopsis kunzeana
- Lycopodiaceae
- Lycopodiella
- Lycopodiella alopecuroides
- Lycopodiella appressa
- Lycopodiella inundata
- Lycopodiella margueritae
- Lycopodiella prostrata
- Lycopodiella subappressa
- Lycopodium
- Lycopodium annotinum
- Lycopodium clavatum
- Lycopodium dendroideum
- Lycopodium hickeyi
- Lycopodium lagopus
- Lycopodium obscurum
- Lygodiaceae
- Lygodium
- Lygodium japonicum
- Lygodium microphyllum
- Lygodium palmatum
M
- Macrothelypteris
- Macrothelypteris torresiana
- Marsilea
- Marsilea ancylopoda
- Marsilea macropoda
- Marsilea mollis
- Marsilea oligospora
- Marsilea quadrifolia
- Marsilea vestita
- Marsileaceae
- Matteuccia
- Matteuccia struthiopteris
- Matteuccia struthiopteris var. pensylvanica
- Maxonia
- Maxonia apiifolia
- Maxonia apiifolia var. apiifolia
- Microgramma
- Microgramma heterophylla
N
- Nephrolepis
- Nephrolepis biserrata
- Nephrolepis cordifolia
- Nephrolepis exaltata
- Nephrolepis multiflora
- Nephrolepis ×averyi
- Neurodium
- Neurodium lanceolatum
- Notholaena
- Notholaena aliena
- Notholaena aschenborniana
- Notholaena californica
- Notholaena californica subsp. californica
- Notholaena californica subsp. leucophylla
- Notholaena copelandii
- Notholaena grayi
- Notholaena grayi subsp. grayi
- Notholaena grayi subsp. sonorensis
- Notholaena greggii
- Notholaena lemmonii
- Notholaena nealleyi
- Notholaena neglecta
- Notholaena standleyi
O
O cont.
- Osmunda
- Osmunda cinnamomea
- Osmunda claytoniana
- Osmunda regalis
- Osmunda regalis var. spectabilis
- Osmunda ruggii
- Osmundaceae
P
- Palhinhaea
- Palhinhaea cernua
- Parkeriaceae
- Pecluma
- Pecluma dispersa
- Pecluma plumula
- Pecluma ptilodon
- Pecluma ptilodon var. caespitosa
- Pellaea
- Pellaea andromedifolia
- Pellaea atropurpurea
- Pellaea brachyptera
- Pellaea breweri
- Pellaea bridgesii
- Pellaea cordifolia
- Pellaea gastonyi
- Pellaea glabella
- Pellaea glabella subsp. glabella
- Pellaea glabella subsp. missouriensis
- Pellaea glabella subsp. occidentalis
- Pellaea glabella subsp. simplex
- Pellaea intermedia
- Pellaea lyngholmii
- Pellaea mucronata
- Pellaea mucronata subsp. californica
- Pellaea mucronata subsp. mucronata
- Pellaea ovata
- Pellaea ternifolia
- Pellaea ternifolia subsp. arizonica
- Pellaea ternifolia subsp. ternifolia
- Pellaea ternifolia subsp. villosa
- Pellaea truncata
- Pellaea wrightiana
- Pentagramma
- Pentagramma pallida
- Pentagramma triangularis
- Pentagramma triangularis subsp. maxonii
- Pentagramma triangularis subsp. semipallida
- Pentagramma triangularis subsp. triangularis
- Pentagramma triangularis subsp. viscosa
- Phanerophlebia
- Phanerophlebia auriculata
- Phanerophlebia umbonata
- Phegopteris
- Phegopteris connectilis
- Phegopteris hexagonoptera
- Phlebodium
- Phlebodium aureum
- Phlegmariurus
- Phlegmariurus dichotomus
- Picea
- Picea abies
- Picea breweriana
- Picea engelmannii
- Picea engelmannii var. engelmannii
- Picea glauca
- Picea mariana
- Picea pungens
- Picea rubens
- Picea sitchensis
- Pilularia
- Pilularia americana
- Pinaceae
- Pinus
- Pinus albicaulis
- Pinus aristata
- Pinus attenuata
- Pinus balfouriana
- Pinus banksiana
- Pinus cembroides
- Pinus clausa
- Pinus contorta
- Pinus contorta var. contorta
- Pinus contorta var. latifolia
- Pinus contorta var. murrayana