| Easily-confused when 🌱︎ young (👟︎ ankle- to 🦵 knee-high)!
Identification information from MSU,
poison ivy quiz.
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| If each leaf contains: | with lateral (side) leaflets: | and terminal (end) leaflet: | and your specimen has/is a: | | then you have: |
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| | | | | |
| 3 leaflets |
asymmetric,
with
almost-no petiolule
(<¹/₁₀ as long as blade) |
almost-no petiolule (<¹/₁₀ as long as blade) |
trailing vine
| | lookalike
🍓︎ strawberry genus Fragaria.
|
| medium-length petiolule |
woody stems, shrub,
which
if plant is above 🦵 knee-high, is covered with ⍋ prickles;
and
if mature, stems curve ↷ downward and reroot (can be over your head) |
| lookalike
raspberry genus Rubus.
|
trailing vine
or climbing vine,
with
old growth
║ vertical, held tight to host by 1000s of aerial roots,
Asia or 🇨🇦 🇺🇸 🇲🇽 North America (outside the West, usually) |
|
lookalike
⚠︎✋︎ eastern poison ivy
Toxicodendron radicans. ✋︎⚠︎
|
woody stem, shrub;
North America (outside of California and southeastern 🇺🇸 USA) |
|
lookalike
⚠︎✋︎ western poison ivy
Toxicodendron rydbergii ✋︎⚠︎
|
3 or 5 (or 7) leaflets,
arranged -⋘- pinnate | asymmetric, with
short, but variable-length (0–⅓ length of blade) petiolule |
medium-, but variable-length (0–¼ length of blade) petiolule |
woody stem, tree |
| lookalike
boxelder maple
Acer negundo.
|
5 leaflets,
arranged 🖐 palmate | — | — |
trailing vine
or climbing vine
|
|
this plant, please
continue below …
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