Asperula orientalis, known as annual woodruff or oriental woodruff, is a species of flowering plant in the family Rubiaceae. It is found in Turkey, western Syria, Iraq, the Caucasus and Iran. It is often used as an ornamental plant in various regions and is reportedly naturalized in Oregon, North Dakota and the Czech Republic. References External links photo of herbarium specimen at Missouri Botanical Garden, syntype of ''Asperula orientalis' World Checklist of Rubiaceae Asperula orientalis Outside Pride (Independence Oregon USA), Shake the Seed, Blue Woodruff Seeds Annie's Annuals & Perennials (Richmond California USA), Blue Woodruff Chiltern Seeds (Wallingford UK), Asperula orientalis, blue woodruff Kings Seeds (Katikati, Bay of Plenty, New Zealand), Asperula sweet blue woodruff orientalis Flora of Turkey Flora of Azerbaijan Flora of Syria Flora of Iran Flora of Iraq Flora of Armenia Flora of the Czech Republic Plants described in 1843 Taxa named by Pierre Edmond Boissier Taxa named by Rudolph Friedrich Hohenacker