I am trying to get info re the Palau poison tree aka "tonget". The
name is Semecarpus venenosus (Anacardiaceae). I'm trying to find out
what it is and why it is so toxic - also how it relates to things like
poison ivy. I'm not finding much on the internet and I don't have
access to a university library. Many thanks.

I'm not finding much on the internet

Really? here's a truckload:
• A
HREF="http://aolsearch.aol.com/aol/redir?src=websearch&requestId=2d056
5cb6fd787ca&clickedItemRank=1&userQuery=Se mecarpus+venenosus&c
lickedItemURN=http%3A%2F%2Fwww.worldwildlife.org%2 Fwildworld%2Fprofiles%2F
terrestrial%2Foc%2Foc0110_full.html" Terrestrial Ecoregions -- Palau tropical
moist forests (OC0110)/A - ... Parinari corymbosa, Alphitonia carolinensis,
Rhus taitensis, Elaeocarpus carolinensis, Serianthes kanehirae, Semecarpus
venenosus, Calophyllum inophyllum ...
http://www.worldwildlife.org/wildwor...0110_full.html
• A
HREF="http://aolsearch.aol.com/aol/redir?src=websearch&requestId=2d056
5cb6fd787ca&clickedItemRank=2&userQuery=Se mecarpus+venenosus&c
lickedItemURN=http%3A%2F%2Fwww.nps.gov%2Fpwro%2Fpi so%2Fpeleliu%2Fpelrocki.htm"
Rock Islands/A - ... species of the Rock Islands include the endemic palms
Gulubia palauensis and Ptychosperma palauensis, and the forest trees Semecarpus
venenosus, Intsia bijuga ...
http://www.nps.gov/pwro/piso/peleliu/pelrocki.htm
• A
HREF="http://aolsearch.aol.com/aol/redir?src=websearch&requestId=2d056
5cb6fd787ca&clickedItemRank=3&userQuery=Se mecarpus+venenosus&c
lickedItemURN=http%3A%2F%2Fwww.nps.gov%2Fpwro%2Fpi so%2Fpeleliu%2Fplants.htm"
Table C/A - ... Canarium sp. Aglaia palauensis Kaneh. Macaranga carolinensis
Volk. bedel. Semecarpus venenosus Volk. Poison Tree, tonget. Rhus taitensis
Guill. sumac, eues. ...
http://www.nps.gov/pwro/piso/peleliu/plants.htm
• A
HREF="http://aolsearch.aol.com/aol/redir?src=websearch&requestId=2d056
5cb6fd787ca&clickedItemRank=4&userQuery=Se mecarpus+venenosus&c
lickedItemURN=http%3A%2F%2Fwww.unep-wcmc.org%2Fsites%2Fwetlands%2Fyap_stat
..htm" Protected Areas Programme -/A - ... streams and in wet inland
depressions, characteristic tree species include Barringtonia racemosa,
Hibiscus tiliaceus, Semecarpus venenosus, Inocarpus fagifer ...
http://www.unep-wcmc.org/sites/wetlands/yap_stat.htm
• A
HREF="http://aolsearch.aol.com/aol/redir?src=websearch&requestId=2d056
5cb6fd787ca&clickedItemRank=5&userQuery=Se mecarpus+venenosus&c
lickedItemURN=http%3A%2F%2Fnasis.nrcs.usda.gov%2Fp roducts%2Fplantsdq%2Ftra
nslate.pdf" Scott Peterson's Translation List/A - Page 1. Scott Peterson's
Bad Plant Symbol Translation List Scott Peterson of the National Plant Data
Center in Baton Rouge LA examined ...
http://nasis.nrcs.usda.gov/products/.../translate.pdf
• A
HREF="http://aolsearch.aol.com/aol/redir?src=websearch&requestId=2d056
5cb6fd787ca&clickedItemRank=6&userQuery=Se mecarpus+venenosus&c
lickedItemURN=http%3A%2F%2Fbiodiversity.sci.kagosh ima-u.ac.jp%2Fsuzuki%2FH
erbarium%2FHerbCK.htm" Plant species from Indonesia/A - ... pilosanthera
Blanco. 11397, Mora Parartocarpus venenosus (Zoll. & Mor.) Becc. var. ...
11513, Elae Elaeocarpus mastersii King. 11514, Anac Semecarpus [umpa]. ...
http://biodiversity.sci.kagoshima-u....ium/HerbCK.htm
• A
HREF="http://aolsearch.aol.com/aol/redir?src=websearch&requestId=2d056
5cb6fd787ca&clickedItemRank=7&userQuery=Se mecarpus+venenosus&c
lickedItemURN=http%3A%2F%2Fcpi.kagoshima-u.ac.jp%2Foccasional%2Fvol-34%2F3
4-18.pdf" EDIBLE PLANTS AND POISONOUS PLANTS IN MICRONESIA (1) POISONOUS/AA
HREF="http://aolsearch.aol.com/aol/redir?src=websearch&requestId=2d056
5cb6fd787ca&clickedItemRank=7&userQuery=Se mecarpus+venenosus&c
lickedItemURN=http%3A%2F%2Fcpi.kagoshima-u.ac.jp%2Foccasional%2Fvol-34%2F3
4-18.pdf" .../A - ... Semecarpus venenosa Volkens = S. venenosus ;
Anacardiaceae, Changad (Y), Doku-urushi (J) The milky sap of the whole plant
including leaves is very poisonous ...
http://cpi.kagoshima-u.ac.jp/occasio...l-34/34-18.pdf
• A
HREF="http://aolsearch.aol.com/aol/redir?src=websearch&requestId=2d056
5cb6fd787ca&clickedItemRank=8&userQuery=Se mecarpus+venenosus&c
lickedItemURN=http%3A%2F%2Fwww.b-and-t-world-seeds.com%2Fcommamz.htm" Common
Names: Maria Azami to Mzanbaru/A - ... vulgare Marjoram Origanum majorana
Marking Tree Nut Semecarpus anacardium Markweed ... Daisy Bellis perennis
Meadow Death Camas Zigadenus venenosus Meadow Fern ...
http://www.b-and-t-world-seeds.com/commamz.htm
• A
HREF="http://aolsearch.aol.com/aol/redir?src=websearch&requestId=2d056
5cb6fd787ca&clickedItemRank=9&userQuery=Se mecarpus+venenosus&c
lickedItemURN=http%3A%2F%2Fusers.bart.nl%2F%7Eedco lijn%2Ffloraputing.html"
CENTRAL KALIMANTAN/A - ... Semecarpus heterophyllus. Annonaceae: Alphonsea
sp. ... Parartocarpus venenosus. Myristicaceae: Horsfieldia crassifolia; Knema
galeata; Knema sp. Myristica spp. ...
http://users.bart.nl/~edcolijn/floraputing.html
• A
HREF="http://aolsearch.aol.com/aol/redir?src=websearch&requestId=2d056
5cb6fd787ca&clickedItemRank=10&userQuery=S emecarpus+venenosus&
clickedItemURN=http%3A%2F%2Fwww.wetlands.org%2Finv entory%26%2FOceaniaDir%2
FDoc_chapters%2FFSMicronesia.doc"
http://www.wetlands.org/inventory&/O...Micronesia.doc/A
- THE FEDERATED STATES OF MICRONESIA. INTRODUCTION. by Christopher R. Dahl.
Area: 705 sq.km. Population: Kosrae: 6,607 (1986). Yap: 10,139 (1987). ...
http://www.wetlands.org/inventory&/O...Micronesia.doc
Iris,
Central NY, Zone 5a, Sunset Zone 40
"If we see light at the end of the tunnel, It's the light of the oncoming
train."
Robert Lowell (1917-1977)