Penstemon ID 2013

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11) Penstemon and other Scrophulariaceae

I'm hoping someone can ID this Penstemon sp. for me. It only grows a few inches high and spreads to 18 inches across. I'm unsure which diagnostic features are important in Penstemon, so can show more detail if it will help.

Comments

Mark McDonough's picture

Mark McDonough

Sun, 05/19/2013 - 7:44am

Ron, you'll have to show us photos again when the flowers open, the level of hairs (beard) within the flowers can be diagnostic with species, as is anther shape and disposition.  Intense color, looks great so far.  Most certainly a dasanthera penstemon, so the range of species is not huge, but we must also consider hybridization (they hybridize readily).  Could be a P. newberryi form or hybrid.

Longma's picture

Longma (not verified)

Sun, 05/19/2013 - 8:52am

I will do Mark, thank you for the information.
We're forecast thick fog all day tomorrow, and overcast and cool the rest of the week, so when they'll open I don't know. If not I'll dissect a flower or two and check out those features, and post some pics.

Longma's picture

Longma (not verified)

Mon, 05/20/2013 - 4:25am

A local nursery was closing down and for a few days work helping clear up, I could have my pick of the remaining old stock. This was one I picked up. Along with a lot of the other plants from the same deal, there was no label. It was a dedicated 'alpine' plant nursery and so I'm thinking this plant is more than likely a species.

Longma's picture

Longma (not verified)

Mon, 05/20/2013 - 6:54am

A break in the fog and some sun, saw a few flowers open today. This is possibly the best pictures I'll be able to get.

Longma's picture

Longma (not verified)

Tue, 05/21/2013 - 9:50am

Thanks for all the pointers and advice Mark.  8)

After taking these pictures, and opening up the flowers to inspect hairs, stamens etc. and wading through myriad websites I am pretty much convinced that the plant I have is Penstemon newberryi. This is an incredible coincidence as it grows in the same areas where many of my favourite plants come from!! :o This is one of the sites whose description convinced me -

http://www.pnwflowers.com/flower/penstemon-newberryi

Result  ;D

Mark McDonough's picture

Mark McDonough

Tue, 05/21/2013 - 11:29am

I'm with you on the P. newberryi ID; first of all, there are few woody species of this intense flower color, and now seeing the golden hairy anthers it seems fairly positive that's what it is.  And what a glorious penstemon it is.

deesen's picture

deesen (not verified)

Thu, 05/23/2013 - 11:19am

Penstemon virens from the garden today (and a very difficult plant for the camera {photographer!} )

Mark McDonough's picture

Mark McDonough

Thu, 05/23/2013 - 2:01pm

David, I'm sorry to say, your penstemon is not P. virens; most likely what you have is Penstemon davidsonii (and probably var. menziesii), or a hybrid of that species.  Penstemon virens has true blue flowers in an upright spike, with flowers arranged in whorls in a series of closely spaced verticillasters (think Phlomis-arrangement).  But P. davidsonii and its var. menziesii are excellent "pents" for the rock garden.

deesen's picture

deesen (not verified)

Fri, 05/24/2013 - 3:45am

Thanks Mark. It's one of those increasing times where memory plays tricks. I had Penstemon virens that bloomed very well for me in 2011 but I have no record of it in 2012. I vaguely remember that it didn't reappear and I must have obtained P. davidsonii and planted it in the same spot in my rock bed.

Probably not the correct place to say this but I had my profile set to receive email notification of all posts but am currently not receiving any for NARGS posts at all and don't remember amending my profile. Any advice welcome.

Mark McDonough's picture

Mark McDonough

Fri, 05/24/2013 - 5:23am
deesen wrote:

Probably not the correct place to say this but I had my profile set to receive email notification of all posts but am currently not receiving any for NARGS posts at all and don't remember amending my profile. Any advice welcome.

I'm not sure David, maybe because of the recent hosting move of the NARGS Forum to a different server (to resolve the traffic problem on a shared server), some settings went astray?  Try toggling the notification settings... turn them off, then turn them back on again.

deesen's picture

deesen (not verified)

Fri, 05/24/2013 - 11:44am

Thanks mark, I'll give that a try later and report back accordingly.

By the way you get an honourable mention in the June edition of the RHS magazine "The Garden". I quote from an article titled All-summer Alliums and a paragraph in particular on A. cernum:-  "..........This and other species have been used by 'the onion man' Mark McDonough of Massachusetts, USA to create a range of fine plants, yet to become well known in the UK."

"

deesen's picture

deesen (not verified)

Tue, 06/11/2013 - 4:25am
McDonough wrote:

David, I'm sorry to say, your penstemon is not P. virens; most likely what you have is Penstemon davidsonii (and probably var. menziesii), or a hybrid of that species.  Penstemon virens has true blue flowers in an upright spike, with flowers arranged in whorls in a series of closely spaced verticillasters (think Phlomis-arrangement).  But P. davidsonii and its var. menziesii are excellent "pents" for the rock garden.

I have no great experience of Penstemon so would welcome some advice please. My P. davidsonii is just about over and as it is quite straggly I wondered if I should give it a haircut?

By the way still not getting email notifications regardless of how I play around with my profile settings?