Scottish Rock Garden Club Forum

Plant Identification => Plant Identification Questions and Answers => Topic started by: michael z on August 23, 2020, 02:52:39 PM

Title: ID of two alpines
Post by: michael z on August 23, 2020, 02:52:39 PM

Hello,

I grow this two alpines a lot of years in my alpine garden. Unfortunately I do not know the names. Could you help me?

Michael

Title: Re: ID of two alpines
Post by: Tristan_He on August 23, 2020, 06:23:27 PM

Hello Michael,

The first one is a houseleek (Sempervivum) - I'm afraid I don't know which one, there are quite a lot of species and thousands of cultivars! It reminds me a little of S. x barbulatum. Another possibility is Jovibarba allionii.

I'm afraid I can't help with the second, what do the flowers look like?

Best, Tristan

Title: Re: ID of two alpines
Post by: Rick R. on August 23, 2020, 10:30:40 PM

I thought Jovibarba allionii, too, for the first pic. 

Title: Re: ID of two alpines
Post by: Mike Ireland on August 24, 2020, 11:11:45 AM

2nd photo looks like Gypsophila aretioides.

Title: Re: ID of two alpines
Post by: michael z on August 24, 2020, 07:08:43 PM

Thank you Gypsohpila seems to be right. In my opinion its not Sempervivum as the rosettes are quite small. Max 1cm in diameter. I should have taken the fotos with a scale. I expect some Draba species or something like that. What do you think?

Title: Re: ID of two alpines
Post by: Rick R. on August 24, 2020, 09:05:09 PM

I wondered what those whitish (sun-bleached?) dried little stemlike things were in the first pic.  Are they old flowering stems?  They certainly could not be from any Sempervivum or Jovibarba.

Title: Re: ID of two alpines
Post by: Tristan_He on August 24, 2020, 09:37:24 PM

Good point Rick! I think we really need photos of the flowers.

Title: Re: ID of two alpines
Post by: Tristan_He on August 25, 2020, 11:11:53 AM

Michael, could you send a closeup of the rosette of no. 1? Also of any dead flower stems?

Also, do the individual rosettes die after flowering?

Best, Tristan

Title: Re: ID of two alpines
Post by: michael z on August 29, 2020, 08:30:15 AM

Hi Tristan,

I will do. Thank you.

  Michael

Title: Re: ID of two alpines
Post by: michael z on August 29, 2020, 02:33:49 PM

Here the pictures

Title: Re: ID of two alpines
Post by: Tristan_He on August 29, 2020, 11:33:32 PM

Mmm... thanks, I see what you mean about the size! I'm not sure to be honest, but I expect somebody else will know. Perhaps one of the Himalayan Androsace?

Title: Re: ID of two alpines
Post by: Rick R. on August 30, 2020, 01:50:31 AM

I am not sure what an Androsace seed pod looks like, but the remnant in the second pic could certainly be from a Draba.