Echinocereus ?

[Astrophyto]

Hello, could you I'd this guy? The flower has a soft lemon scent. Thank you

[anttisepp]

viridiflorus

[DaveW]

Agree with Antticepp. With greenish flowers it con only be one thing = viridiflorus meaning green flower!

viridiflorusSB167.jpg (90.7 KiB) Viewed 856 times

[Astrophyto]

Thanks, that is

[Astrophyto]

By the way, much less spines on DaveW pic than mine, curious.

[anttisepp]

Very variable species. It has many forms and varieties and growing conditions usually affect on its form and spination, surely it likes open air in Sevilla very much.

[greenknight]

It's a quite variable taxon, take a look here: http://www.llifle.com/Encyclopedia/CACT ... ridiflorus

I've got some seedlings growing, I chose a strain with more red spines - though other spines are white, closer to DaveW's. Subs. correllii has yellow spines, but the combination of yellow and red on yours is unusual, perhaps it's a cross between different subs.

[anttisepp]

2 years ago I've got amazing form with extremly long white central spines, it was a sprout grown from stock of sclerocactus.

[DaveW]

Yes Echinocereus viridiflorus is variable in both spination and flower colour depending what you lump into it. Not all forms have "green flowers" as the name suggests.


Echinocereus viridiflorus v. standleyi

viridiflorus standleyi.jpg (110.87 KiB) Viewed 740 times

Echinocereus viridiflorus v. canus. Variety canus starts off with dense white fluff like an Espostoa (just seen at the bottom third of the plant) and then changes to more mature longer spines.

viridiflorus v. canus.jpg (154.51 KiB) Viewed 740 times

The second picture by Juergen Menzsel in the link below if enlarged shows this juvenile "fluff" very well.

https://cactiguide.com/cactus/?uname2=E ... us%20canus

[Astrophyto]

So... Very different spinations forms, flower color variations... Why then are considered same species? Genetics?

Thank you

[anttisepp]

Very young genus (as e.g. mammillaria or sulcorebutia), e v o l u t i o n continues. There're many intermediate forms in nature.

[DaveW]

It can depend on how wide the distribution is if say just one continuous cline or if there are discrete populations with specific characteristic's suitable to name as distinct species. Species in the past have sometimes been described from just natural variation within a single population or sometimes virtually geographically every so many miles along a continuous but gradually changing population. It also depends whether you are a "lumper" or "splitter"!