Equisetum ramosissimum
| Equisetum ramosissimum | |
|---|---|
| |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Division: | Polypodiophyta |
| Class: | Polypodiopsida |
| Subclass: | Equisetidae |
| Order: | Equisetales |
| Family: | Equisetaceae |
| Genus: | Equisetum |
| Subgenus: | E. subg. Hippochaete |
| Species: | E. ramosissimum
|
| Binomial name | |
| Equisetum ramosissimum Desf.[1]
| |
| Subspecies | |
Equisetum ramosissimum Desf., known as branched horsetail,[2] is a species of evergreen horsetail (genus Equisetum, subgenus Hippochaete).[1]
Botanists today recognize two subspecies. The type subspecies, E. ramosissimum subsp. ramosissimum, is native through much of Asia, Europe, and Africa, with an introduced population in the southeast United States. E. ramosissimum subsp.debile, sometimes treated as the separate species E. debile, is found in extreme southern China, southeast Asia and some Pacific islands, including the East Indies, New Caledonia and Fiji among others. The type subspecies has more obvious branching from the aerial stem than subspecies debile.[3] E. r. subsp. debile is one of the largest forms of Equisetum reaching a height of 9 m (30 ft).[4]
References
- ^ a b "Equisetum ramosissimum", The Plant List, retrieved 2016-01-05
- ^ BSBI List 2007 (xls). Botanical Society of Britain and Ireland. Archived from the original (xls) on 2015-06-26. Retrieved 2014-10-17.
- ^ "Equisetum ramosissimum in Flora of China", Flora of China (eflora), retrieved 2016-12-28
- ^ Laferriere, J.E. (1998). "Equisetaceae". Flora Malesiana - Series II - Ferns and Fern Allies. 3: 287.
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