Equisetum hyemale |
Equisetaceae |
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common scouring-rush, prêle d'hiver, scouring horsetail, scouring rush, scouringrush horsetail, tall scouring-rush |
horsetail family |
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Habit | Plants with jointed stems, with distinct nodes. | |
Leaves | small, whorled, fused into sheaths; tips remaining free, toothlike. |
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Sporangia | borne on peltate sporophylls aggregated in cones 0.3–10 cm. |
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Spores | green (except white in hybrids), all 1 kind. |
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Gametophytes | green, terrestrial, unisexual; male gametophytes smaller than female. |
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Equisetum hyemale |
Equisetaceae |
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Distribution |
AL; AR; AZ; CA; CO; CT; DC; DE; FL; GA; IA; ID; IL; IN; KS; KY; LA; MA; MD; ME; MI; MN; MO; MS; MT; NC; ND; NE; NH; NJ; NM; NV; NY; OH; OK; OR; PA; RI; SC; SD; TN; TX; UT; VA; VT; WA; WI; WV; WY; AB; BC; MB; NB; NF; NS; NT; ON; PE; QC; SK; YT; Mexico; Central America in Guatemala; Europe; Asia
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Nearly worldwide |
Discussion | Subspecies 2 (1 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Genus 1, species 15 (11 species in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 2. | FNA vol. 2, p. 76. |
Parent taxa | Equisetaceae > Equisetum > subg. Equisetum | |
Sibling taxa | ||
Subordinate taxa | ||
Name authority | Linnaeus: Sp. Pl. 2: 1062. (1753) | Michaux ex DeCandolle |
Web links |
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