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Friday’s seed and plant portrait – Hypericum kalmianum

Friday's Seed(s), Wildflowers of North America

Having too many seeds makes it hard to choose which one to show/write about.
I am going the easy way with the last species uploaded to the shop – the Kalm’s St. John’s wort, a (sub)shrub native of the Great Lakes region in Canada and US.

Hypericum kalmianum seeds – Kalm’s St. John’s wort (Fam. Hypericaceae)

Cultivated to some extent, this Hypericum has narrow bluish-green leaves and cheerful, large golden flowers with extruded stamens in late summer; the capsules mature very late.
It is a showy, adaptable plant; evergreen (or partly) and as one can guess after its wild habitat, with excellent cold hardiness. Another attractive feature is the brown/reddish bark which peels off.

Lots of qualities!

Hypericum kalmianum flowers

Hypericum kalmianum1

Hypericum kalmianum bark

Lobelia kalmii

The specific epithet honors Pehr Kalm, one of Linnaeus’ disciples ; an explorer, botanist and naturalist, he traveled to and lived for a while in North America in mid-17th , discovering and writing about plants, animals, insects, Niagara Falls, and in general about the life of American colonies at the time.

Another species that can be found with H. kalmianum, bearing the same name is Lobelia kalmii  shown in the gallery.
Days are short now so you can start to read more about Pehr in the wiki stub and then follow other links: https://en.wikipedia.org/wiki/Pehr_Kalm

November 17, 2017
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https://i0.wp.com/botanicallyinclined.org/wp-content/uploads/2017/11/Hypericum-kalmianum-feat..jpg?fit=550%2C291&ssl=1 291 550 BotanyCa https://botanicallyinclined.org/wp-content/uploads/2013/04/logo-red-new2.jpg BotanyCa2017-11-17 18:21:532023-03-20 17:13:05Friday’s seed and plant portrait – Hypericum kalmianum
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4 replies
  1. mrsdaffodil
    mrsdaffodil says:
    November 17, 2017 at 11:36 pm

    I’ve only recently realized how many varieties of Hypericum there are. There’s one in my garden and I have no idea what it is.

  2. diversifolius
    diversifolius says:
    November 18, 2017 at 8:28 am

    There are quite a few species and cultivars of Hypericum on the market. With good pictures of leaves/flowers/whole plant it’s not impossible to ID them,
    unless the case of a hybrid.

  3. offtheedgegardening
    offtheedgegardening says:
    November 19, 2017 at 5:34 am

    Incredible stamen, a real show off! I love the phrase “specific epithet” just trips off the tongue.

  4. diversifolius
    diversifolius says:
    November 19, 2017 at 10:09 am

    Yeah, the botanists found a good term for referring to the name of a species – surprise! :))

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