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LEMNACEAE
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families
All genera |
| Scientific name |
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Distribution in USA
and Canada (*) |
Common names |
Grown habit |
Duration |
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USA (CA)
Map for Wolffia arrhiza (L.) Horkel ex Wimm. (*)
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 spotless watermeal
| Forb/herb | Perennial |
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= Wolffia punctata auct. non Griseb.
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USA (CA, CO, CT, IA, ID, IL, IN, KS, KY, MA, MD, MI, MN, MO, MT, NC, NE, NH, NJ, NY, OH, OR, PA, SD, TN, UT, VA, VT, WA, WI), CAN (AB, BC, ON, QC)
Map for Wolffia borealis (Engelm. ex Hegelm.) Landolt ex Landolt & Wildi (*)
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northern watermeal
| Forb/herb | Perennial |
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= Bruniera punctata (Griseb.) Nieuwl.
= Wolffia papulifera C.H. Thomp.
= Wolffia punctata Griseb.
| | 
USA (AL, AR, CA, CT, DC, DE, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, MI, MN, MO, MS, NC, NJ, NY, OH, OK, OR, PA, SC, TN, TX, VA, VT, WA, WI, WV)
Map for Wolffia brasiliensis Weddell (*)
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Brazilian watermeal
| Forb/herb | Perennial |
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= Bruniera columbiana (Karst.) Nieuwl.
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USA (AL, AR, CA, CO, CT, DC, DE, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NY, OH, OK, OR, PA, SC, SD, TN, TX, VA, VT, WI, WV), CAN (AB, BC, MB, NB, ON, QC, SK)
Map for Wolffia columbiana Karst. (*)
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Columbian watermeal
| Forb/herb | Perennial |
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= Wolffia cylindracea Hegelm.
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USA (CA, FL, HI)
Map for Wolffia globosa (Roxb.) Hartog & Plas (*)
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Asian watermeal
| Forb/herb | Perennial |
(*) USDA, NRCS. 2009. The PLANTS Database (http://plants.usda.gov,
28 August 2009). National Plant Data Center, Baton Rouge, LA 70874-4490
USA.
PICTURES
Wolffia arrhiza
Hippolyte Coste - Flore descriptive et illustrée de la France, de la Corse et des contrées limitrophes, 1901-1906 - This image is in public domain because its copyright has expired. |
Wolffia brasiliensis
USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913. An illustrated flora of the northern United States, Canada and the British Possessions. Vol. 1: 449. |
Wolffia columbiana
USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913. An illustrated flora of the northern United States, Canada and the British Possessions. Vol. 1: 449. |
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