Horsetails

Longitude (deg): -5.3. Latitude (deg): 55.5. Longitude (deg/min): 5° 20' W. Latitude (deg/min): 55° 30' N. Vice county name: Clyde Islands. Vice county no.: 100. Country: Scotland. Identified by: Malcolm Storey. Photo summary: "in situ, close-ups, stem cross-section, spores". Comment: growing in small river near sea. Category: standard photograph or close-up. Photographic equipment used: Canon EOS400D dSLR with Tamron SP AF Di 90mm Macro 1:1 lens.

Typically referred to as simply Equisetum hyemale L. but plants in North America are considered to belong to a separate subspecies from those in Europe, and are treated as Equisetum hyemale L. subsp. affine (Engelm.) Calder & Taylor. Even within the "affine" group, morphological differences have been observed in plants in southern and central/western areas of North America compared to plants in the "far west" which have led in the past to other published names, but which currently are included within this complex (Equisetum robustum var. affine and E . hyemale var. californicum are examples).Note the pointed (apiculate) cones and the gray-ash as well as the adjoining narrower black bands on the robust stems. Our tallest Horsetail. Known also as Common scouringrush. Pioneers perhaps confused it as looking rush-like and the plants were used to clean/scour pots and pans and such because of its silica content. "Scouringrush" (or with a space or a hyphen) is in fact commonly used with at least three other species of Equisetum. See FNA's use of the same common name at www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=2.... For more clarifying use on the common name as used in the United States, see www.illinoiswildflowers.info/grasses/plants/scouring_rush....Equisetum hyemale subsp. hyemale occurs in Europe/Asia/China and it not the same taxa, at least a presently understood.This portion of the creek did not exist until relatively recently when it was diverted and these plants have managed to take advantage of this new habitat within the past two years.Sept. 14, 2012, Salt Lake County, Utah, along Big Cottonwood Creek at approx. 4,380 ft. elev.

May revisited found this unposted photo of young water horsetails (Equisetum fluviatile - thanks to Stamnariophilus for the correct id!) that grew in the middle of a forest swamp nearby. They make a nice pattern.

Great Horsetail or Northern Giant Horsetail (Equisetum telmateia) along upper Mtkvari River, Bojormi Gorge area, Republic of Georgia. Photographed on 12 July 2005.

Longitude (deg): -2.4. Latitude (deg): 50.5. Longitude (deg/min): 2° 30' W. Latitude (deg/min): 50° 30' N. Vice county name: Dorset. Vice county no.: 9. Country: England. Identified by: Malcolm Storey. Category: standard photograph or close-up. Photographic equipment used: Canon EOS400D dSLR with Tamron SP AF Di 90mm Macro 1:1 lens.

Longitude (deg): -2.6. Latitude (deg): 50.7. Longitude (deg/min): 2° 40' W. Latitude (deg/min): 50° 50' N. Vice county name: Dorset. Vice county no.: 9. Country: England. Identified by: Malcolm Storey. Category: standard photograph or close-up. Photographic equipment used: Nikon D100 dSLR with Tamron SP T90 AF Macro 1:1 lens.

"Longitude (deg): -1.7. Latitude (deg): 51.5. Longitude (deg/min): 1° 50' W. Latitude (deg/min): 51° 30' N. Vice county name: North Wilts. Vice county no.: 7. Country: England. Identified by: Malcolm Storey. Comment: Reared specimen with a few branches. Category: standard photograph or close-up. Photographic equipment used: "35mm transparencies (on a variety of films, but Agfa CT18 in the 1960's to early 1980's followed by Fujichrome in the late 1980's.) Transparencies scanned with Minolta Dimage Scan Dual II AF-2820U transparency scanner.". "

Equisetum telmateia. Thanks to Sciadopitys for the ID.

Longitude (deg): -2.6. Latitude (deg): 50.7. Longitude (deg/min): 2° 40' W. Latitude (deg/min): 50° 50' N. Vice county name: Dorset. Vice county no.: 9. Country: England. Identified by: Malcolm Storey. Photo summary: "Fertile plant: in situ, strobilus close-up, nail varnish peels of stem and sheath surfaces". Comment: "fertile stems, growing at roadside". Category: standard photograph or close-up. Photographic equipment used: Nikon D100 dSLR with Tamron SP T90 AF Macro 1:1 lens.

Longitude (deg): -2.4. Latitude (deg): 50.5. Longitude (deg/min): 2° 30' W. Latitude (deg/min): 50° 30' N. Vice county name: Dorset. Vice county no.: 9. Country: England. Identified by: Malcolm Storey. Category: standard photograph or close-up. Photographic equipment used: Canon EOS400D dSLR with Tamron SP AF Di 90mm Macro 1:1 lens.

Longitude (deg): -5.3. Latitude (deg): 55.5. Longitude (deg/min): 5° 20' W. Latitude (deg/min): 55° 30' N. Vice county name: Clyde Islands. Vice county no.: 100. Country: Scotland. Identified by: Malcolm Storey. Photo summary: "in situ, close-ups, stem cross-section, spores". Comment: growing in small river near sea. Category: standard photograph or close-up. Photographic equipment used: Canon EOS400D dSLR + Sigma 50mm 1:1 macro lens.

Longitude (deg): -2.6. Latitude (deg): 50.7. Longitude (deg/min): 2° 40' W. Latitude (deg/min): 50° 50' N. Vice county name: Dorset. Vice county no.: 9. Country: England. Identified by: Malcolm Storey. Photo summary: "Fertile plant: in situ, strobilus close-up, nail varnish peels of stem and sheath surfaces". Comment: "fertile stems, growing at roadside". Category: standard photograph or close-up. Photographic equipment used: Nikon D100 dSLR with Tamron SP T90 AF Macro 1:1 lens.

Longitude (deg): -2.0. Latitude (deg): 53.7. Longitude (deg/min): 2° 0' W. Latitude (deg/min): 53° 50' N. Vice county name: South-west Yorks. Vice county no.: 63. Country: England. Identified by: Malcolm Storey. Category: standard photograph or close-up. Photographic equipment used: "35mm transparencies (on a variety of films, but Agfa CT18 in the 1960's to early 1980's followed by Fujichrome in the late 1980's.) Transparencies scanned with Minolta Dimage Scan Dual II AF-2820U transparency scanner.".

"Longitude (deg): -0.7. Latitude (deg): 51.0. Longitude (deg/min): 0° 50' W. Latitude (deg/min): 51° 10' N. Vice county name: Surrey. Vice county no.: 17. Country: England. Identified by: Malcolm Storey. Comment: specimen with a few branches. Category: standard photograph or close-up. Photographic equipment used: "35mm transparencies (on a variety of films, but Agfa CT18 in the 1960's to early 1980's followed by Fujichrome in the late 1980's.) Transparencies scanned with Minolta Dimage Scan Dual II AF-2820U transparency scanner.". "

"Longitude (deg): -0.2. Latitude (deg): 50.8. Longitude (deg/min): 0° 10' W. Latitude (deg/min): 50° 50' N. Vice county name: East Sussex. Vice county no.: 14. Country: England. Identified by: Malcolm Storey. Comment: specimen with a few branches. Category: standard photograph or close-up. Photographic equipment used: "35mm transparencies (on a variety of films, but Agfa CT18 in the 1960's to early 1980's followed by Fujichrome in the late 1980's.) Transparencies scanned with Minolta Dimage Scan Dual II AF-2820U transparency scanner.". "

"Longitude (deg): -0.2. Latitude (deg): 50.8. Longitude (deg/min): 0° 10' W. Latitude (deg/min): 50° 50' N. Vice county name: East Sussex. Vice county no.: 14. Country: England. Identified by: Malcolm Storey. Comment: specimen with a few branches. Category: standard photograph or close-up. Photographic equipment used: "35mm transparencies (on a variety of films, but Agfa CT18 in the 1960's to early 1980's followed by Fujichrome in the late 1980's.) Transparencies scanned with Minolta Dimage Scan Dual II AF-2820U transparency scanner.". "

"Longitude (deg): -0.2. Latitude (deg): 50.8. Longitude (deg/min): 0° 10' W. Latitude (deg/min): 50° 50' N. Vice county name: East Sussex. Vice county no.: 14. Country: England. Identified by: Malcolm Storey. Comment: specimen with a few branches. Category: standard photograph or close-up. Photographic equipment used: "35mm transparencies (on a variety of films, but Agfa CT18 in the 1960's to early 1980's followed by Fujichrome in the late 1980's.) Transparencies scanned with Minolta Dimage Scan Dual II AF-2820U transparency scanner.". "

Longitude (deg): -1.2. Latitude (deg): 51.3. Longitude (deg/min): 1° 20' W. Latitude (deg/min): 51° 20' N. Vice county name: Berks. Vice county no.: 22. Country: England. Identified by: Malcolm Storey. Category: standard photograph or close-up. Photographic equipment used: Nikon Coolpix 950.

Longitude (deg): -1.2. Latitude (deg): 51.3. Longitude (deg/min): 1° 20' W. Latitude (deg/min): 51° 20' N. Vice county name: Berks. Vice county no.: 22. Country: England. Identified by: Malcolm Storey. Category: standard photograph or close-up. Photographic equipment used: Nikon Coolpix 950.

Longitude (deg): -1.2. Latitude (deg): 51.3. Longitude (deg/min): 1° 20' W. Latitude (deg/min): 51° 20' N. Vice county name: Berks. Vice county no.: 22. Country: England. Identified by: Malcolm Storey. Category: standard photograph or close-up. Photographic equipment used: Nikon Coolpix 950.

Longitude (deg): -3.0. Latitude (deg): 50.7. Longitude (deg/min): 3° 0' W. Latitude (deg/min): 50° 40' N. Vice county name: South Devon. Vice county no.: 3. Country: England. Identified by: Malcolm Storey. Category: standard photograph or close-up. Photographic equipment used: Nikon Coolpix 950.

Longitude (deg): -3.0. Latitude (deg): 50.7. Longitude (deg/min): 3° 0' W. Latitude (deg/min): 50° 40' N. Vice county name: South Devon. Vice county no.: 3. Country: England. Identified by: Malcolm Storey. Category: standard photograph or close-up. Photographic equipment used: Nikon Coolpix 950.