Günther's Site - Photos of European Plants

Navigation	Search for a plant:

	Equisetum x trachyodon (A.BR.) W.D.J.KOCH

Fam.: Equisetaceae / Horsetail Fam.

Hybrid formula (parents): Equisetum hyemale L. x Equisetum variegatum SCHLEICH. ex F.WEBER & D.MOHR

Genus: Equisetum L.

Authors:
	A.BR.:	Addison Brown (1830 - 1913), jurist and botanist in USA
	W.D.J.KOCH:	Wilhelm Daniel Joseph Koch (1771 - 1849), German botanist from Kusel
	SCHLEICH.:	Johann Christian Schleicher (1768 - 1834), German botanist in Switzerland
	F.WEBER:	Friedrich Weber (1781 - 1823), German physician and botanist
	D.MOHR:	Daniel Matthias Heinrich Mohr (1780 - 1808), botanist from Kiel (Schleswig-Holstein, Germany)
	L.:	Carl von Linné (Linnaeus, 1707 - 1777), Swedish naturalist who introduced the binary naming system for plants and animals

Etymology:
	Equisetum:	equus = horse, seta = bristle
	trachyodon:	rough-teethed
	hyemale:	hibernal
	variegatum:	variegated

Equisetum x trachyodon grows at similar locations as Equisetum x moorei, e.g. at the shore in the upper Rhine valley, but it is more daintily. Today it often grows still where its parent Equisetum variegatum is long extinct. As the Rough Horsetail it is green in winter. Its spore bearings have a more pronounced tip than those of the Rough Horsetail. The microscope image shows the 'aborted' (malformed) spores of the hybrid as small white sheaths, while a corresponding image at Equisetum hyemale shows well formed spores which are green and bigger.

Fig. 1: Equisetum x trachyodon / Mackay's Horsetail
D Ketsch 5.3.2013

Fig. 2: Equisetum x trachyodon / Mackay's Horsetail
D Ketsch 5.3.2013

Fig. 3: Equisetum x trachyodon / Mackay's Horsetail
D Ketsch 5.3.2013

Fig. 4: Equisetum x trachyodon / Mackay's Horsetail
D Ketsch 5.3.2013

Fig. 5: Equisetum x trachyodon / Mackay's Horsetail
D Ketsch 5.3.2013

Fig. 6: Equisetum x trachyodon / Mackay's Horsetail
D Ketsch 5.3.2013

Fig. 7: Equisetum x trachyodon / Mackay's Horsetail
D Ketsch 5.3.2013

Fig. 8: Equisetum x trachyodon / Mackay's Horsetail
D Ketsch 5.3.2013

Fig. 9: Equisetum x trachyodon / Mackay's Horsetail
D Ketsch 5.3.2013

Fig. 10: Equisetum x trachyodon / Mackay's Horsetail
D Ketsch 5.3.2013

Fig. 11: Equisetum x trachyodon / Mackay's Horsetail
D Ketsch 5.3.2013

Fig. 12: Equisetum x trachyodon / Mackay's Horsetail
D Ketsch 5.3.2013

Fig. 13: Equisetum x trachyodon / Mackay's Horsetail
D Ketsch 5.3.2013

Fig. 14: Equisetum x trachyodon / Mackay's Horsetail
D Ketsch 5.3.2013

Fig. 15: Equisetum x trachyodon / Mackay's Horsetail
D Ketsch 5.3.2013

Fig. 16: Equisetum x trachyodon / Mackay's Horsetail
D Ketsch 5.3.2013

Equisetum x trachyodon / Mackay's Horsetail, D Ketsch 7.3.2013

Fig. 17: Equisetum x trachyodon / Mackay's Horsetail (aborted spores, ~200x)
D Ketsch 7.3.2013

Fig. 18: Equisetum x trachyodon / Mackay's Horsetail
D Ketsch 19.7.2013

Fig. 19: Equisetum x trachyodon / Mackay's Horsetail
D Ketsch 19.7.2013

Fig. 20: Equisetum x trachyodon / Mackay's Horsetail
D Ketsch 19.7.2013

Fig. 21: Equisetum x trachyodon / Mackay's Horsetail
D Ketsch 19.7.2013

Fig. 22: Equisetum x trachyodon / Mackay's Horsetail
D Ketsch 19.7.2013

Fig. 23: Equisetum x trachyodon / Mackay's Horsetail
D Ketsch 19.7.2013

Fig. 24: Equisetum x trachyodon / Mackay's Horsetail
D Ketsch 19.7.2013

Fig. 25: Equisetum x trachyodon / Mackay's Horsetail
D Ketsch 19.7.2013

Fig. 26: Equisetum x trachyodon / Mackay's Horsetail
D Ketsch 19.7.2013

Fig. 27: Equisetum x trachyodon / Mackay's Horsetail
D Ketsch 19.7.2013

Fig. 28: Equisetum x trachyodon / Mackay's Horsetail
D Hagen 11.6.2020

Fig. 29: Equisetum x trachyodon / Mackay's Horsetail
D Hagen 11.6.2020

Fig. 30: Equisetum x trachyodon / Mackay's Horsetail
S Öland, Stora Alvaret, Möckel Mossen 8.8.2009

Fig. 31: Equisetum x trachyodon / Mackay's Horsetail
S Öland, Stora Alvaret, Möckel Mossen 8.8.2009

Fig. 32: Equisetum x trachyodon ? / Mackay's Horsetail
Corsica, Porto 28.5.2010

Fig. 33: Equisetum x trachyodon ? / Mackay's Horsetail
Corsica, Porto 28.5.2010

Fig. 34: Equisetum x trachyodon ? / Mackay's Horsetail
Corsica, Porto 28.5.2010

At the photos with question mark I'm not sure on the correct determination. If you have an idea you can simply write it here and send it (max. 300 characters):

Name / EMail (optional):

To top

Start page

Contents

Orchids

Other Plants

Plants acc. to Families

.. Relationship:

APG

trad.

.. Scientific Names

.. German Names