Polygonaceae
Oxyria

Oxyria digyna (L.) Hill

First published in Hort. Kew.: 158 (1768)
This species is accepted
The native range of this species is Subarctic & Subalpine. It is a perennial and grows primarily in the subalpine or subarctic biome.

Descriptions

Extinction risk predictions for the world's flowering plants to support their conservation (2024). Bachman, S.P., Brown, M.J.M., Leão, T.C.C., Lughadha, E.N., Walker, B.E. https://nph.onlinelibrary.wiley.com/doi/full/10.1111/nph.19592

Conservation
Predicted extinction risk: not threatened. Confidence: confident
[AERP]

Ghazanfar, S. A. & Edmondson, J. R (Eds). (2016) Flora of Iraq, Volume 5 Part 1: Elatinaceae to Sphenocleaceae.

Morphology General Habit
Glabrous, tufted, perennial herb, stems 9–16 cm; rootstock clothed with persistent petiole bases
Morphology Leaves
Leaves 2–3.5 × 1–3 cm, reniform to orbicular, mostly basal, becoming reddish with age; petiole 6–12 cm; ochrea membranous
Morphology Reproductive morphology Inflorescences
Inflorescence narrowly paniculate, bearing clusters of 2–5 flowers
Morphology Reproductive morphology Flowers
Flowers bisexual-Perianth segments 4, greenish to pinkish, without tubercles, outer pair spreading or reflexed, not accrescent; inner pair appressed to nut, enlarging slightly in fruit
Morphology Reproductive morphology Fruits
Fruit ovoid, 3–5 mm, exceeding the inner perianth segments, broadly winged, cordate at base, apex notched, margin bright pink and becoming scarious, denticulate.
Ecology
Stony mountain slopes, crannies of metamorphic rocks, by melting snow patches; alt. 2300–3600 m;
Phenology
Flowering: Jul.–Aug.
Distribution
Iraq: Local in thorn-cushion zone of the high mountains of NE Iraq. Arctic Eurasia and North America, mountains of Europe and SW Asia eastwards to Himalaya, China and Korea; Turkey, Armenia, Caucasus, N Iran, Afghanistan, Pakistan.
[FIQ]

Sources

  • Angiosperm Extinction Risk Predictions v1

    • Angiosperm Threat Predictions
    • http://creativecommons.org/licenses/by/4.0

  • Flora of Iraq

    • Ghazanfar, S. A., Edmondson, J. R. (Eds). (2013-2019). Flora of Iraq, Volumes 5.1, 5.2 and 6.0. Kew Publishing
    • http://creativecommons.org/licenses/by-nc-sa/3.0

  • Herbarium Catalogue Specimens

    • 'The Herbarium Catalogue, Royal Botanic Gardens, Kew. Published on the Internet http://www.kew.org/herbcat [accessed on Day Month Year]'. Please enter the date on which you consulted the system.
    • Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/

  • Kew Backbone Distributions

    • The International Plant Names Index and World Checklist of Vascular Plants 2026. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0

  • Kew Names and Taxonomic Backbone

    • The International Plant Names Index and World Checklist of Vascular Plants 2026. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 International Plant Names Index and World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0

  • Kew Science Photographs

    • Copyright applied to individual images