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Equisetidae is one of the four
subclasses of
Polypodiopsida (ferns), a
group of
vascular plants with a
fossil record going back to the Devonian. They...
- tail of a
horse Equisetidae, a
subclass of
living and
extinct plants known as
horsetails Equisetales, the
single extant order of
Equisetidae Equisetaceae...
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Equisetales is an
order of
subclass Equisetidae with only one
living family, Equisetaceae,
containing the
genus Equisetum (horsetails), as well as a variety...
- and the ferns,
keeping the term monilophytes, into five subclasses,
Equisetidae, Ophioglossidae, Psilotidae,
Marattiidae and Polypodiidae, by dividing...
- orders, 21 families, approx. 212 genera, approx. 10,535
species Subclass Equisetidae Warm.
Subclass Ophioglossidae Klinge Subclass Marattiidae Klinge Subclass...
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horsetail or
common horsetail, is an
herbaceous perennial plant in the
Equisetidae (horsetails) sub-class,
native throughout the
arctic and
temperate regions...
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perennial herbaceous pteridophyte belonging to the
subclass of
horsetails (
Equisetidae). It is
widespread in
cooler regions of
Eurasia and
North America. Equisetum...
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Equisetum is a "living fossil", the only
living genus of the
entire subclass Equisetidae,
which for over 100
million years was much more
diverse and dominated...
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Tracheophytes Division:
Polypodiophyta class:
Polypodiopsida Subclass:
Equisetidae Order:
Equisetales Family: †Calamitaceae Unger, 1840[citation needed]...
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typified by the
genus Sphenophyllum. The
probable relationships within Equisetidae are
shown in the
cladogram below. The
possible position of
Ibyka has...
