Family |
Polygonaceae
Oxyria digyna
(L.) Hill
Oxyria digyna (L.) Hill
First published in Hort. Kew.: 158 (1768).
(Nouvelle Flore du Liban et de la Syrie, vol. 1, pp. 405–406, Pl. CXXXV, 3; 1966)
Description
Life-form & habit: Perennial with a branched rhizome covered in old leaf-stalk and sheath remains; flowering stems are 5–25 cm tall.
Leaves: Basal rosette of very long-stalked, rounded heart-shaped or kidney-shaped leaves, 5–10 mm long and 7–15 mm wide; stem leaves absent.
Inflorescence & flowers: A simple or sparsely branched panicle bears flowers on slender stalks jointed near the middle. Flowers have four green perianth segments, six stamens and two nearly stalkless, brushlike stigmas.
Fruit: Rounded, flattened achene, notched at the apex, with purple, cross-veined wings as broad as or broader than the seed.
Flowering and habitat
Phenology: Flowering July–August.
Habitat & elevation: Rocks in the high mountains.
Distribution
Lebanese distribution: Jabal Sannine, Foum el Mizhab, Qornet el Sawda and Makmel.
Native range: Afghanistan, Alaska, Albania, Alberta, Aleutian Is., Altay, Arizona, Austria, British Columbia, Bulgaria, California, China North-Central, China South-Central, Chita, Colorado, Corse, Czechia-Slovakia, East European Russia, East Himalaya, Finland, France, Føroyar, Germany, Great Britain, Greece, Greenland, Iceland, Idaho, Iran, Iraq, Ireland, Irkutsk, Italy, Japan, Kamchatka, Kazakhstan, Khabarovsk, Kirgizstan, Korea, Krasnoyarsk, Kuril Is., Labrador, Lebanon-Syria, Magadan, Manchuria, Mongolia, Montana, Nepal, Nevada, New Hampshire, New Mexico, Newfoundland, North Caucasus, North European Russia, Norway, Nova Scotia, Nunavut, NW. Balkan Pen., Oregon, Pakistan, Poland, Québec, Romania, Sakhalin, South Dakota, Spain, Svalbard, Sweden, Switzerland, Tadzhikistan, Tibet, Transcaucasus, Tuva, Türkiye, Ukraine, Utah, Uzbekistan, Washington, West Himalaya, West Siberia, Wyoming, Xinjiang, Yakutiya, Yukon.