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From: San Antonio, TX
Region: Southwest
Topic: Poisonous Plants
Title: Curing plant rash
Answered by: Joe Marcus
We don't think we can answer your question since giving medical advice is not really in our province, but it seems that after three weeks you might want to consult with a medical doctor. However, we may be able to help you identify the cause. If the offending plant was a cactus, it was likely Cylindropuntia leptocaulis (Christmas cactus), also known as Pencil cactus or Tasajillo. Other possible offenders include Urtica chamaedryoides (heartleaf nettle), Cnidoscolus texanus (Texas bullnettle), and Tragia spp, (Noseburn). A less likely candidate (because it's not native to that area but occurs not too far away) is Cevallia sinuata (stinging serpent), Finally, any number of insects with stining hairs, including saddleback caterpillars and stinging asps may have assaulted you.
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