The article on California poppy: https://www.cpp.edu/~jcclark/poppy/spreading_seeds.html Encelia californica x farinosa: http://nathistoc.bio.uci.edu/plants/Asteraceae/Encelia%20hybrids/Encelia%20hybrids.htm

What are the dangers? Will they come in to your bedroom at night and eat you? I would have liked a summary of what the links are about but I can sort of determine that from the URL’s.

basically cultivated poppies will interbreed with local wild ones, leading to a second generation not fit to survive in harsh conditions, thinning or even wiping out local /wild strains over the course of several years (if cultivars are planted too close to wild poppies)

There should be local laws that forbid the cultivation of alien species that are menacing native biodiversity. Anywa, with annual ornamentals it is more difficult because it is lilkely that a consistent seed bank has already established.

Think of the situation with black-eared miners in Victoria. But in this case, the yellow-throated miners are introduced into the habitats containing BEMI. Encelia farinosa is native to California, but only inland. It is foreign to coastal habitats, the two are naturally separated by mountain ranges…

Can we include people as “menacing native biodiversity?” HA!

[image] silversea_starsong: but it’s all one species, the debate is mixing genetics from other regions rather than two species mixing. The same here in the Mediterranean with wild boars. Despite the native genotype is not taxonomically distinguished from that of central Europe it has hybridiz…

It is something to be concerned with. First, it seems best to plant natives that are already found in your area. However, some nursery stock of natives have become adapted to cultivation over time, and thus diverge genetically. My sister is involved in some habitat restoration projects, and the nur…

Interesting. The poppies are quoted as being variable, but they aren’t variable as much as they are fairly regionally specific. Like where I am, it’s obvious when an entirely orange, large-flowered showy poppy is seeded among our naturally occurring yellowish smaller-flowered poppies. They then seed…

Aren’t there any evidences that they could belong to two different subspecies?

Dangers of growing cultivated California poppy and Encelia farinosa in coastal San Diego

Nature Talk

tiwane December 1, 2019, 11:24pm 5

@andyjones1 the General category is meant for topics that are directly related to iNaturalist so I’ve moved this topic to Nature Talk.

Topic		Replies	Views
How big a risk are cultivars to their wild progenitors? Nature Talk	3	490	December 30, 2020
What to do in cases where a species is both introduced and endemic? Nature Talk	30	1063	January 23, 2024
Should I plant? Cultivated natives and wild population conservation Nature Talk question	8	983	December 15, 2019
Species arising through hybrid speciation with alien parents - are these native? General	34	962	May 29, 2025
How to best identify widely hybridized plant populations General	3	451	March 26, 2022

Dangers of growing cultivated California poppy and Encelia farinosa in coastal San Diego

Related topics