Hydrostachys (Redirected from Hydrostachyaceae)

Hydrostachys
Hydrostachys imbricata.jpg
Hydrostachys imbricata
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Cornales
Family: Hydrostachyaceae
Engl.
Genus: Hydrostachys
Thouars
Species

Approximately 22; see text.

Hydrostachys is a genus of about 22 species of flowering plants native to Madagascar and southern and central Africa. It is the only genus in the family Hydrostachyaceae. All species of Hydrostachys are aquatic, growing on rocks in fast-moving water. They have tuberous roots, usually pinnately compound leaves, and highly reduced flowers on dense spikes.

Phylogenetic placement of Hydrostachys is particularly problematic. Due to its specialized aquatic morphology, it has often been grouped with other aquatic plants, such as the family Podostemaceae. However, embryological, floral, and other morphological characters do not support this placement, and molecular data suggest that Hydrostachys is related to taxa in the order Cornales. Its position in Cornales is uncertain; it may be basal to the rest of the order, or fall within the family Hydrangeaceae. It shares few morphological similarities with other Cornales.

Species

(This list may be incomplete.)

  • Hydrostachys decaryi
  • Hydrostachys distichophylla
  • Hydrostachys fimbriata
  • Hydrostachys imbricata
  • Hydrostachys laciniata
  • Hydrostachys longifida
  • Hydrostachys maxima
  • Hydrostachys monoica
  • Hydrostachys multifida
  • Hydrostachys perrieri
  • Hydrostachys plumosa
  • Hydrostachys stolonifera
  • Hydrostachys trifaria
  • Hydrostachys verruculosa

This page was last updated at 2023-05-01 07:55 UTC. Update now. View original page.

All our content comes from Wikipedia and under the Creative Commons Attribution-ShareAlike License.


Top

If mathematical, chemical, physical and other formulas are not displayed correctly on this page, please useFirefox or Safari