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Plant ID - type of Hypericum

Posted by mudsnake 8B (My Page) on
Sat, Aug 23, 08 at 0:52

I know that this plant is a St. John's Wort, in the genus Hypericum, but I do not know the species. It grows wild here in North Florida.

Here is a link to some photos. To enlarge a photo, click on it.

Can anyone identify this?


Follow-Up Postings:

RE: Plant ID - type of Hypericum

Check out the link below and scan down to the maps and check out by clicking on the map of those species that are shaded for Florida-really quite a few.

Here is a link that might be useful: Native Hypericums of USA

RE: Plant ID - type of Hypericum

Note that not all of the plants on the link to USDA are native, the blue shading indicates native. For example, Hypericum perforatum is not native (but luckily I don't think that is what you have based on the flower).

RE: Plant ID - type of Hypericum

Happily I stumbled across this plant while looking for other opposite leaf yellow flowering plants. I think it may be your plant!

Here is a link that might be useful: Ascyrum hypericoides

RE: Plant ID - type of Hypericum

Carol23, thanks for the link. That looks very much like my plant. My plant is 3 to 4 feet tall, and Ascyrum hypercoides gets to be about 18 inches tall. However, it might get taller in North Florida.

Also, thanks to terrestial_man for the link to the Hypericum page at USDA, and the tip from esh_ga.

RE: Plant ID - type of Hypericum

There is another 4-petaled Hypericum species, along with St. Andrew's Cross, that is native to FL.
You will probably need to examine plant habit, stature, foliage and bark, to determine which one you have.

Hypericum tetrapetalum

RE: Plant ID - type of Hypericum

  • Posted by soeur z6b TN (My Page) on
    Sun, Aug 24, 08 at 13:47

Perhaps it behaves differently in FL, but Hypericum hypericoides grows 3-3.5 feet tall here in Tennessee.

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