Penstemon ID

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deesen
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Penstemon ID
deesen
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Sorry about the hiccough above but the perfectly ordinary function of starting a new thread defeated me.

 

 

 

My first image below was grown from seed, (SRGC 12/13-2922) sown in early September 2013, labelled as Penstmen buckleyi. In his book "Penstomens" Bob Nold describes it has having ".... rather thick, leathery ovate or lanceolate leaves...". I'm not sure my plant has particularly leathery leaves though? The other thing is, and I feel a bit of a twit saying it, it was the only one in the seed pot that germinated so I suppose it could be a weed? Any advice welcomed.My second image is a seedling (SRGC 12/13-2921) and again sown September 2013 labelled as P. berryi but I see from Bob's book that this should be P. newberryi ssp. berryi. Now I have five of these so it's not a weed this time, but I would welcome views as to whether it looks "right"?Given that many of the species Penstemon are from dry areas and Devon, UK is hardly that to put it mildly I presume my seedlings are best kept under glass (frost free?) over the Winter before being planted out in Spring in a medium somewhat more suitable for them than a sure-to-be 'claggy' Devon garden soil? Again advice welcomed.I've got quite into Penstemon species, and regardless of my climate hope to grow many more.

 

David Nicholson in Devon, UK  Zone 9b

RickR
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Joined: 2009-09-21

[quote=deesen]Sorry about the hiccough above but the perfectly ordinary function of starting a new thread defeated me.[/quote]

That must be a relative new thing, David.  I immediately thought it was yet another system error until I read it all. It seems people can browse our forum threads without pulling up an entire thread, and just read a synopsis, if you choose to re write a synopsis in that first  Preview box.  As you found out, just ignore it.  I do.

Regarding the penstemons, I love 'm, but don't know enough about them.

Rick Rodich    zone 4a.    Annual precipitation ~24 inches near Minneapolis, Minnesota, USA

penstemon
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Joined: 2010-06-24

The plant on the left looks like Penstemon hirsutus. Buckleyi would have relatively thick, glaucous leaves. The plant on the right could possibly be P. richardsonii, or, um, you know, a weed. I've planted out more than my share of weeds, thinking I've germinated something wonderful. 

Here's a picture of Penstemon newberryi var. berryi.

http://calphotos.berkeley.edu/cgi/img_query?enlarge=0000+0000+0910+0645

You can search the CalPhotos site for regular newberryi as well. The pictures on that site are more reliable than many others.

 

Bob

Bob

extreme western edge of Denver, Colorado; elevation 1705.6 meters, average annual precipitation 30cm; refuses to look at thermometer if it threatens to go below -17C

Lori S.
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Joined: 2009-10-27

Penstemon hirsutus strikes again?  Why am I not surprised?

Lori Calgary, Alberta, Canada - Zone 3 -30 C to +30 C (rarely!); elevation ~1130m; annual precipitation ~40 cm

penstemon
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Well, my impression is that Penstemon hirsutus functions as a stand-in for other species. 

It's ungrowable here, so no loss. 

 

Bob

Bob

extreme western edge of Denver, Colorado; elevation 1705.6 meters, average annual precipitation 30cm; refuses to look at thermometer if it threatens to go below -17C

deesen
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Many thanks for responding Bob. I shall grow all of them on and see what happens.

David Nicholson in Devon, UK  Zone 9b

Fermi
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I thought I'd piggy-back onto David's topic to see if anyone here can give a conclusive (or near to conclusive) ID for this blue penstemon which I got as Penstemon heterophyllus,

blue penstemonblue penstemonblue penstemon

cheers

fermi

Fermi de Sousa, Central Victoria, Australia Min: -7C, Max: +40C

penstemon
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Probably is P. heterophyllus. The leaves near the inflorescence should not be wider at the base. No beard on staminode. Saccate anthers would be the real diagnostic here. 

Bob

extreme western edge of Denver, Colorado; elevation 1705.6 meters, average annual precipitation 30cm; refuses to look at thermometer if it threatens to go below -17C

Fermi
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Thanks, Bob,

I'll check out one of the remaining flowers,

cheers

fermi

Fermi de Sousa, Central Victoria, Australia Min: -7C, Max: +40C

penstemon
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Sure. The saccate anthers (look like pouches) would probably indicate heterophyllus. 

Bob

extreme western edge of Denver, Colorado; elevation 1705.6 meters, average annual precipitation 30cm; refuses to look at thermometer if it threatens to go below -17C

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