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Ourisia biflora is a species of flowering plant in the family Plantaginaceae that is endemic to high-elevation habitats in the Tropical Andes mountains of southern Peru and northwestern Bolivia. Hugh Algernon Weddell described O. biflora in 1860. Plants of this species of South American foxglove are small, perennial, and repent herbs with opposite, and often hairy leaves. There can be up to two flowers on a short raceme, and each flower has a regular calyx, and a long, regular, tubular-funnelform, white corolla (tinged pink or violet) with included stamens. The calyx is densely hairy, whereas the corolla is hairless on the outside but densely hairy on the inside near the tube opening.
Ourisia biflora is known only from the altiplano in southeastern Peru and northwestern Bolivia from c. 14°-16°S. This species is found on rocks in high-elevation wet puna habitats from 3500 to 5000 m above sea level. There are few herbarium specimens or observations of it. The species has been reported recently in Peru from Cusco department and the Carabaya mountain range in Puno department, and in Bolivia in La Paz department including in Madidi National Park.
Ourisia alpina · Ourisia breviflora subsp. breviflora · Ourisia breviflora subsp. uniflora · Ourisia breviflora · Creeping Mountain Foxglove · Ourisia calycina · Ourisia chamaedrifolia · Ourisia coccinea subsp. coccinea · Ourisia coccinea subsp. elegans · Ourisia coccinea · Ourisia confertifolia · Ourisia cotapatensis
Text excerpted from the Wikipedia article Ourisia biflora by its contributors, under CC BY-SA 4.0; the excerpts are shared under the same licence.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
