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Water Hemlock
I've just added Cicuta maculata to my collection of poisonous plants. The plants from this genus are the real trophies. It smells like carrot and tastes like carrot (I don't know this from experience), but it will usually kill you.
from Wikipedia:
Appearance
The stems are smooth, branching, swollen at the base, purple-striped, or mottled (C. malculata only), and hollow except for partitions at the junction of the leaves and stem. The leaves are alternate, tripinnate, only coarsely toothed, unlike the ferny, lacy leaves found in many other members of the Apiaceae. The flowers are small, white and clustered in the umbrella shape so familiar to this family. An oily, yellow liquid oozes from cuts to the stems and roots. This liquid has a rank smell resembling that of parsnips, carrots or mice.
One reliable method to identify water hemlock is to examine the leaf veins. Water Hemlock is unique in the Parsley family in that it has leaf veins which terminate in the notches between the leaf tips rather than extend to the tip of the leaf as is found in the leaf structure of Angelica, Osha, Cicely, Osmorhiza and other useful medicinal members of the Parsley family. Water Hemlock bears a frightening resemblance to Osmorhiza (Western Sweet Cicely) and Angelica, and these plants can at times be found growing in the same habitat. However, Water hemlock lacks the distinctive anise-like "spicy celery" odor of Sweet Cicely and Angelica, and possesses a unique leaf vein structure which differenciates it from all other umbelliferates.
[edit] Toxicity
The plant is occasionally mistaken for parsnips, due to its clusters of white tuberous roots; this is an often fatal error, as the Cicuta is extremely poisonous. Indeed, some consider water hemlock to be North America's most toxic plant.[1] Cicuta is fatal when swallowed, causing violent and painful convulsions. Though a number of people have died from water hemlock poisoning over the centuries, livestock have long been the worst affected (hence the name "cowbane"), causing death in as little as 15 minutes. [2],[3]
The chief poison is cicutoxin, an unsaturated aliphatic alcohol that is most concentrated in the roots. Upon human consumption, nausea, vomiting, and tremors occur within 30-60 minutes, followed by severe cramps, projectile vomiting, and convulsions. There are occasional long-term effects, like retrograde amnesia.[4] Ingestion of water hemlock in any quantity can result in death or permanent neurological damage of the central nervous system.
Species
Cicuta bulbifera - Bulblet-bearing Water Hemlock. Northern North America.
Cicuta douglasii - Western Water Hemlock. Western North America.
Cicuta maculata - Spotted Water Hemlock. North America (widespread).
Cicuta virosa - Cowbane or Northern Water Hemlock. Northern Europe and Asia, also Alaska.
Okay, I better stop reading because the more I read about it, the more nervous I get.
from Wikipedia:
Appearance
The stems are smooth, branching, swollen at the base, purple-striped, or mottled (C. malculata only), and hollow except for partitions at the junction of the leaves and stem. The leaves are alternate, tripinnate, only coarsely toothed, unlike the ferny, lacy leaves found in many other members of the Apiaceae. The flowers are small, white and clustered in the umbrella shape so familiar to this family. An oily, yellow liquid oozes from cuts to the stems and roots. This liquid has a rank smell resembling that of parsnips, carrots or mice.
One reliable method to identify water hemlock is to examine the leaf veins. Water Hemlock is unique in the Parsley family in that it has leaf veins which terminate in the notches between the leaf tips rather than extend to the tip of the leaf as is found in the leaf structure of Angelica, Osha, Cicely, Osmorhiza and other useful medicinal members of the Parsley family. Water Hemlock bears a frightening resemblance to Osmorhiza (Western Sweet Cicely) and Angelica, and these plants can at times be found growing in the same habitat. However, Water hemlock lacks the distinctive anise-like "spicy celery" odor of Sweet Cicely and Angelica, and possesses a unique leaf vein structure which differenciates it from all other umbelliferates.
[edit] Toxicity
The plant is occasionally mistaken for parsnips, due to its clusters of white tuberous roots; this is an often fatal error, as the Cicuta is extremely poisonous. Indeed, some consider water hemlock to be North America's most toxic plant.[1] Cicuta is fatal when swallowed, causing violent and painful convulsions. Though a number of people have died from water hemlock poisoning over the centuries, livestock have long been the worst affected (hence the name "cowbane"), causing death in as little as 15 minutes. [2],[3]
The chief poison is cicutoxin, an unsaturated aliphatic alcohol that is most concentrated in the roots. Upon human consumption, nausea, vomiting, and tremors occur within 30-60 minutes, followed by severe cramps, projectile vomiting, and convulsions. There are occasional long-term effects, like retrograde amnesia.[4] Ingestion of water hemlock in any quantity can result in death or permanent neurological damage of the central nervous system.
Species
Cicuta bulbifera - Bulblet-bearing Water Hemlock. Northern North America.
Cicuta douglasii - Western Water Hemlock. Western North America.
Cicuta maculata - Spotted Water Hemlock. North America (widespread).
Cicuta virosa - Cowbane or Northern Water Hemlock. Northern Europe and Asia, also Alaska.
Okay, I better stop reading because the more I read about it, the more nervous I get.
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