Calandrinia spectabilis (USA- Cultivated)

Calandrinia spectabilis Otto & A.Dietr., Allg. Gartenzeitung 1: 161 1833. (Syn: Claytonia spectabilis (Otto & D.Dietr.) Kuntze);
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Chile as per POWO;
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Calandrinia spectabilis from California-GS08022021-2: 3 images.
Calandrinia spectabilis Otto & A.Dietr.Common name: Rock Purslane
I am repeating differences of two often confused species
Calandrinia spectabilis Otto & A.Dietr.: Leaves 3-5 cm long, rhombic tp spathulate, light green,  inflorescence ca 60 cm tall, leaves and sepals with elongate unicellular hairs, sepals distinctly angular or keeled, capsules valves reflexed after dehiscence, margins involute.
Cistanthe grandiflora (Lindl.) Schltdl. (syn: Calandrinia grandiflora Lindl.: Leaves 12-20 cm long, narrowly elliptic narrowed into broad petiole, with acute apex, ,  grey green, elongate hairs absent on leaves and sepals, sepals not distinctly keeled, capsule valves not reflexed after dehiscence, margins not involute.
Calandrinia spectabilis photographed from Natural Bridges Beach Santa Cruz, California, 23-7-2016

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San Francisco, August 2024 :: Calandrinia spectabilis for validation :: ARK2024-001: 3 high res. images.
Posting some pics from my recent US visit
This was clicked at Moss Landing coast near SFO, USA in August 2024.
s this Calandrinia spectabilis?


Yes I guess.


It is difficult to confirm identification without leaves. Strangely Calandrinia grandiflora and C. spectabilis are considered synonyms in several websites due to similar flowers but in reality they are so distinct that they are placed in two different genera now. They can be differentiated as below:
Calandrinia spectabilis Otto & A.Dietr.: Leaves 3-5 cm long, rhombic tp spathulate, light green,  inflorescence ca 60 cm tall, leaves and sepals with elongate unicellular hairs, sepals distinctly angular or keeled, capsules valves reflexed after dehiscence, margins involute. 
Cistanthe grandiflora (Lindl.) Schltdl. (syn: Calandrinia grandiflora Lindl.: Leaves 12-20 cm long, narrowly elliptic narrowed into broad petiole, with acute apex, ,  grey green, elongate hairs absent on leaves and sepals, sepals not distinctly keeled, capsule valves not reflexed after dehiscence, margins not involute.


My post of Calandrinia spectabilis

And my post of Cistanthe grandiflora

https://groups.google.com/g/indiantreepix/HIAAAJ


These are getting downloaded as heic files and not opening on downloading.

Pl. see.

Attaching the jpeg versions.



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References:
The Plant List Ver.1.1  POWO  Annies Annuals  Dave’s Garden

Updated on December 28, 2024