Other common names:
Butterfly Weed, Pleurisy Root Family: Dogbane Family (Apocynaceae), (Milkweed Family (Asclepiadaceae)) Group: Milkweeds Distinctive features:
Orange, milkweed-like flowers. Clear (not milky) sap. Similar species: • Common Milkweed (Asclepias syriaca) - has rose-purple flowers. • Swamp Milkweed (Asclepias incarnata) - has rose-purple flowers. Flowers: Summer; Yellow, Orange; 5 parts (petals); Orange (rarely yellow), in a cluster at top of the plant. Typical milkweed flowers in structure. Leaves:
Resemble those of Swamp Milkweed. Height:
30-90 cm (11-35 in) Stem:
Clear sap, not milky like the other milkweeds and dogbanes. Fruit/Seeds:
Small black discs carried by the wind on silky hairs. Habitat: Fields and Open Areas; Dry open fields. Grows in Sun/Shade:
Sun Books: Newcomb's Wildflower Guide: 188 Peterson's Field Guide to Wildflowers: 208 ROM Field Guide to Wildflowers of Ontario: 138 Native/Non-native:
Native Status:
Uncommon.
Notes:
Striking orange, milkweed-type flowers make this a very distinctive plant. Not very common.
Origin and Meaning of Names:
Scientific Name: tuberosa: tuberous For more information visit: Ontario Wildflowers Photographs:
163 photographs available, of which 9 are featured on this page. SCROLL DOWN FOR PHOTOGRAPHS.
Range Map is at the bottom of the page
PLEASE NOTE: A coloured Province or State means this species occurs somewhere in that Province/State.
The entire Province/State is coloured, regardless of where in that Province/State it occurs.
(Range map provided courtesy of the USDA website
and is displayed here in accordance with their
Policies)
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