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5. Equisetaceae Michaux ex DeCandolle

Horsetail Family

Richard L.Hauke

Equisetum ramosissimum

Credit: Harvard University Herbaria

Plants with jointed stems, with distinct nodes. Leaves small, whorled, fused into sheaths; tips remaining free, toothlike. Sporangia borne on peltate sporophylls aggregated in cones 0.3--10 cm. Spores green (except white in hybrids), all 1 kind. Gametophytes green, terrestrial, unisexual; male gametophytes smaller than female.

Genus 1, species 15 (11 species in the flora): nearly worldwide.

Lower Taxa


Related Objects  

Flora of China  
  • Equisetaceae (PDF)
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  • Pteridophytes (Treatment)
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