Equisetum × schaffneri

Equisetum × schaffneri
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Division: Polypodiophyta
Class: Polypodiopsida
Subclass: Equisetidae
Order: Equisetales
Family: Equisetaceae
Genus: Equisetum
Species:
E. × schaffneri
Binomial name
Equisetum × schaffneri

Equisetum × schaffneri is a horsetail (family Equisetaceae) which is believed to be an ancient, naturally occurring, widely distributed hybrid between Equisetum giganteum and Equisetum myriochaetum, from the Neotropics. The stems are up to 7 m tall, and 3–22 mm diameter, with 12-48 ridges.[1] At each node there are up to 19 branchlets, each curving downward and then upward, and up to 45 cm long.[2] The spore cones are terminal on the stems and branches, and are sterile.[1]

References

  1. ^ a b "Equisetum × schaffneri Milde". World Flora Online. Retrieved 8 July 2025.
  2. ^ Zuchowski, Willow (2007). Tropical Plants of Costa Rica. Ithaca, N.Y.: Cornell Univ. Press. pp. 444–445. ISBN 978-0-8014-4588-0.
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