Dactylorhiza sibirica Efimov, 2016

Kubentayev, Serik A., Efimov, Petr G., Alibekov, Daniyar T., Kupriyanov, Andrey N., Izbastina, Klara S., Khalymbetova, Aizhan E. & Perezhogin, Yuri V., 2023, Review of Orchidaceae of the northern part of Kazakhstan, PhytoKeys 229, pp. 185-213 : 185

Dactylorhiza sibirica Efimov

Distribution in adjacent reg.

Russia (Siberia), Kazakhstan (Altai).

Specimens examined and literature records.

Eastern Upland: Pavlodar Region: Bayanaul District : Bayanaul Mountain Forest , on the slope of the watershed between Jasybai Lake and Sabyndykul, 24 Jun 1979, Lalayan s.n (SVER 627698!). East Kazakhstan Region: the village of Kriushi, meadow along a stream, 21 Jul 1928, Ilyin and Heinrichson s.n.. (LE!) .

Habitat and ecology.

Stream valleys, swampy meadows.

Phenology.

Flowering in Jun-Jul; fruiting in Aug-Sep.

Conservation status.

Not protected.

Notes.

Dactylorhiza sibirica is reported for the studied region for the first time. This allopolyploid species was described relatively recently, in 2016, with diploid Siberian D. fuchsii and D. incarnata as its presumable parental taxa ( Efimov et al. 2016). In eastern Kazakhstan, the species was earlier incorrectly determined as Dactylorhiza baltica (Klinge) Nevski or Dactylorhiza x kerneri ( Danilova et al. 2020; Sumbembayev et al. 2023).