Trillium 2025

[Herman Mylemans]

Trillium nivale

Trillium ovatum

Trillium albidum

Trillium kurabayashii

[Herman Mylemans]

Trillium cuneatum

Trillium sessile (true)

[Leena]

It is nice to see how Trillium season is on over there. Here only T.nivale is flowering.
I think I have lost my T.albidum seedlings, there is no sign of them yet, and right close to them T.chloropetalum is already in bud.
It is too early, I worry about how they stand the freezing nights.

T.nivale can cope with cold.

[Claire Cockcroft]

Trillium kurabayashii from seeds collected in the wild in Northern California



Trillium pusillum, which gently seeds around

[Claire Cockcroft]

Pseudotrillium rivale, in three forms

[Claire Cockcroft]

Pseudotrillium rivale in the garden.  It seeds around the whole garden.

 

[Mariette]

Trillium kurabayashii from seeds collected in the wild in Northern California

It resembles my Trillium angustipetalum - do You know how to tell them apart?

[Claire Cockcroft]

Unfortunately, I can't help you differentiate trilliums.  I find the descriptions and pictures confusing.  The wild-collected T. kurabayashii resembles the ones I've been growing for years, but since I'm not a botanist, I couldn't say if they're identical or not!
...Claire

[Mariette]

Thank You, Clare - I share Your problems. I try to use the key given by Case & Case, but as the measures are often overlapping, it is difficult to decide if it´s one species or the other for someone like me. Anyway, I came to select my seedlings for beauty and floriferousness, as my garden isn´t large enough for a botanical collection. 

[Véronique Macrelle]

If my Trillium kurabayashii hasn't reappeared this year, does that mean it's dead? It had 2 stems last year and seemed to have recovered well.

[ashley]

Trillium parviflorum
According to my nose, parvi-scented too 😉

[Herman Mylemans]

It resembles my Trillium angustipetalum - do You know how to tell them apart?

Mariette,
T. angustipetalum: petals are very narrow, flower is cylindrical
T. kurabayashii:  petals are inverted lanceolate, flower is inverted pyramid

[Herman Mylemans]

Trillium decumbens

[Mariette]

Mariette,
T. angustipetalum: petals are very narrow, flower is cylindrical
T. kurabayashii:  petals are inverted lanceolate, flower is inverted pyramid

Thank You, Herman! Would You call the trillium pictured a Trillium angustipetalum?

[Rick R.]

This is how eflora differentiates T. angustipetalum and T. kurabyashii - by the anther connective.
The anther connective is the part that connects the left and right parts of the anther.

Here on T. nivale, the anther connective is green, the anther is yellow.  The (anther) sac extends beyond the anther connective.


Here on T. cuneatum and T. sessile , the anther connective extends beyond the (anther) sac.


http://efloras.org/florataxon.aspx?flora_id=1&taxon_id=242101984