Spotted St. John's-wort
Mar 20, 2023 20:21:20 #
Spotted St. John's-wort - Hypericum punctatum. There are close to 600 species in the genus, distributed world wide. This one is a North American species, one of 50+ St. John's-wort species native to North America. They are larval host plants for 23 species of butterflies and moths.
The black spots are glands that when crushed produce a red stain. In the 16th century the Swiss Renaissance theologian Paracelsus called those stains "Johannes-blut" - "John's blood" - referring to St. John, which is thought to be the origin of the name. "Wort" is an old English word meaning "plant."
Common St. John's-wort - Hypericum perforatum - a European species, has long been used in traditional herbal medicine. It is invasive in North America.
The black spots are glands that when crushed produce a red stain. In the 16th century the Swiss Renaissance theologian Paracelsus called those stains "Johannes-blut" - "John's blood" - referring to St. John, which is thought to be the origin of the name. "Wort" is an old English word meaning "plant."
Common St. John's-wort - Hypericum perforatum - a European species, has long been used in traditional herbal medicine. It is invasive in North America.
Mar 20, 2023 20:26:41 #
Very nice!! I really like #2!! Thanks for the info; I've learned something new today!!
Dodie
Dodie
Mar 20, 2023 22:49:24 #
13
Loc: I am only responsible to what I say..not what
luvmypets wrote:
Very nice!! I really like #2!! Thanks for the info; I've learned something new today!!
Dodie
Dodie
Me too...very nice photos!!!
Mar 20, 2023 23:19:00 #
MattW1
Loc: Baton Rouge
Nice photos.
They are toxic to livestock who might ingest them, causing primary photosensitization of the skin.
They are toxic to livestock who might ingest them, causing primary photosensitization of the skin.
Mar 20, 2023 23:44:55 #
MattW1 wrote:
Nice photos.
They are toxic to livestock who might ingest them, causing primary photosensitization of the skin.
They are toxic to livestock who might ingest them, causing primary photosensitization of the skin.
Yes and no. The problem is a little more complex. Most plants are toxic to some degree for most animals. Given a choice cattle will pass over undesirable plants. But invasive species, like the European St. John's-wort in North America, can drive out native species and form huge stands. Hungry cattle can then be left with no choice, and can overdose on a plant they would ignore if they could.
Thanks for the comments!
Mar 21, 2023 06:16:29 #
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Mar 21, 2023 13:36:21 #
Thanks for all the thumbs and comments! Dodie, 13, MattW1, Frank, John Matthew, Jack, Wasabi, Gary.
Mar 21, 2023 19:21:06 #
Mar 21, 2023 19:26:34 #
Mar 22, 2023 09:43:54 #
Mar 22, 2023 12:02:15 #
asicit wrote:
Very nice. It’s interesting learning how plants got their names.
Thanks for commenting.
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