Putnam Park Wildflowers


Flower ID: IMG_1240.JPG-06-02-2022
Flower name (scientific): Toxicodendron rydbergii (Small ex Rydberg) Greene PY: 1905. Pronunciation guide: (phonetic spelling) toks-ee-ko-DEN-dron rid-BERG-ee
Flower name (common): Western Poison Ivy
Family name (common): Sumac
Family name (scientific): Anacardiaceae
Scientific name origin:
     Genus: From the Latin toxicus meaning poisonous and dendron meaning tree or tree-like, hence poison tree.
    Specific epithet: Named for the Swedish-born American botanist Per Axel Rydberg.
Common name origin: Despite the first part of the name, this plant is wide spread across both western and eastern regions of the US and Canada. However, in some western regions, it is the predominant or only species of poison ivy that occurs. The poison part of the name reflects the harmful nature of contact with the leaves and ivy refers to the growth habit of one form of the plant genus Toxicodendron, namely Toxicodendron radicans (Eastern Poison Ivy), which can be a vine.
Flower description:
     Size: 0.05 to 0.1 inches (1 to 2 mm)
     Petal count: 5
     Color: white or green
     Other: flower arrangement, Panicle
Plant description:
     Size: 6 to 48 inches (15 to 122 cm)
     Stem hairy:
     Other:
Leaf description: attachment is alternate, type is compound
     Size: Leaflets up to 15 cm long and up to 12 cm wide.
     Color:
     Hairy:
     Other: Shape: leaf, compound with groups of 3 leaflets, leaflet broadly oval
Origin (native, introduced, invasive): Native
Status (common, uncommon, threatened, rare): Common
Bloom time (typical): June to August
Cycle (annual, biennial, perennial): Perennial
Habitat:
Fruit:
Seed:
Importance to wildlife:
Similar species (if any): No close lookalikes.
Ethnobotany: No recorded uses by tribes from Wisconsin. THe Iroquois used the plant as a blood medicine (Moerman, pp. 564-565, 1998).
Latitude: 44.799862
Longitude: -91.506378
Altitude: 245.50
Distribution: In Wisconsin: (Adams, Ashland, Barron, Bayfield, Brown, Buffalo, Burnett, Chippewa, Clark, Columbia, Dane, Dodge, Door, Douglas, Dunn, Eau Claire, Florence, Fond du Lac, Forest, Grant, Green Lake, Iowa, Iron, Jackson, Jefferson, Juneau, La Crosse, Lafayette, Langlade, Lincoln, Manitowoc, Marathon, Marinette, Menominee, Milwaukee, Monroe, Oconto, Oneida, Outagamie, Ozaukee, Pepin, Pierce, Polk, Portage, Price, Racine, Richland, Rock, Rusk, Sauk, Shawano, Sheboygan, St. Croix, Vernon, Walworth, Washburn, Washington, Waukesha, Waushara, Winnebago, Wood) Click here for distribution map
In US: (AZ, CO, CT, IA, ID, IL, IN, KS, MA, MD, ME, MI, MN, MT, NC, ND, NE, NH, NM, NV, NY, OH, OK, OR, PA, RI, SD, TX, UT, VA, VT, WA, WI, WV, WY) Click here for distribution map
In Canada: (AB, BC, MB, NB, NS, ON, PE, QC, SK, YT) Click here for distribution map
References:
Synonym(s):
Basionym: Rhus rydbergii Small ex Rydberg Mem. New York Bot. Gard. 1: 268 (-269) (1900).
Homotypic Synonym(s):
Heterotypic Synonym(s):
Autonym: na
Wetland Status (NC): FAC
Wetland Status (MW): FAC