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Dear friends,
I think, it's not O. caryophyllacea, because of the narrow long and probably entire calyx segments. They are untypical for O. caryophyllacea.

Dear friends,
I think it isn't O. elatior: The stigmas are not bright yellow, the spike is very lax, the calyx segments are very narrow, almost filiform and - probably - entire, the scales below the spike fairly sparse and the colouration of the whole plant is very pale. I think it's more O. alba. What do you think?

Thanks for permission.
Holger

Thanks. According to Beck (Pflanzenreich IV (261): 98. 1930) is Artemisia absinthium the most usual host of Phelipanche lanuginosa.

Dear Oleg, dear friends,
yes, this is Phelipanche lanuginosa = Ph. caesia and I think, it seems to be var. borealis (Turcz.) Beck because of the longer cylindrical spikes. This is a very beautiful group of this plant.

The bare setting of the code on Orowiki with reference to Plantarium is hardly practicable because the plants should be shown to the determination.

Should the original picture be renamed or be replaced or be deleted, the link would be without aim. Then it would be useless for the user, who looking for the help with the determination to offer a link without aim.

As far as I know, there is also no Link-Checker for Mediawiki/Wikipedia.

Therefore my request to show the picture in Orowiki, with information of the author (what I make already) and, in addition, a link to "Plantarium" for the popularity.

Dear Alexey, can I use your pic of O. laxissima for my wikiproject http://orowiki.org, please (considering the copyrights of course)?
Holger

Yes, I think also, we need more detailed picture. I think, this is probably Phelipanche coelestis. Do you know, which plants are possibly the hosts?

Galushko encodes O. raddeana between the species of the tribe Curvatae (alsatica, grossheimii and inulae) that is between species with regularly curved dorsal line (compare also Galusko's key point 12.)

On the other hand has O. gamosepala and also the plant in the picture a clearly irregularly curved dorsal line.

The flower state (laxly or dense) is for itself taken no a sufficient character.

This plant is truly O. gamosepala, not O. raddeana. Both species are growing on subalpine meadows and both species have yellow stigmas. O. gamosepala is parasitic on Geranium-species, O. raddeana probably on Dorycnium and Campanula.

The original description of O. raddeana shows, that the corolla is regularly curved “Linea dorsalis aequaliter curvata”. The corolla on picture is distinctly curved basally and at the upper lip. The earlier neighbourhood of O. alba (O. alba var. raddeana) shows, that the corolla not distinctly differ from O. alba. A picture of a specimen you can see under http://orowiki.org. The calyx segments distinctly longer than at the plant on picture.

The original description of O. gamosepala shows, that this plant is blackish-red (“Flores laxe et subalterne spicati, erecti, O. Galii magnitudinis, in sicco atro-sanguinei.”). The upper lip is helmet-like (“labio superiore galeato integro vel leviter emarginato”).

I can’t clearly see, that the calyx segments on the plant are individed. They are more similar to the segments of O. gamosepala.