ILLINOIS PLANT INFORMATION NETWORK ILPIN INFORMATION ON Atriplex hortensis CLASS: DICOTYLEDENAE ORDER: CARYOPHYLLALES FAMILY: CHENOPODIACEAE SCIENTIFIC NAME: Atriplex hortensis AUTHORITY: L. COMMON NAMES: GARDEN ORACH ORACHE SYNONOMY: None PLANTS CODE: ATHO NATURAL COMMUNITIES: CULTURAL DEVELOPED LAND SAF FOREST COVER TYPE: NO NATURAL DIVISION: UNAVAILABLE COUNTIES: DUPAGE LAKE VERMILION GROWTH FORM: Dicot-herb TAXONOMY COMMENTS: Foliage normally is green but crimson-leaved plants are cultivated as ornamentals. TAXONOMIC CHARACTERISTICS: ROOTS: Primary LEAF ARRANGEMENT: Alternate LEAF TYPE: Simple LEAF MARGIN: Entire Dentate LEAF VENATION: Pinnate LEAF SHAPE: Oblong Ovate Oval Deltoid INFLORESCENCE: Panicle FLOWER MEROUS: 3 FLOWER STRUCTURE: Incomplete (no petals) FLOWER COLOR: Violet Others FLOWER PLACEMENT: Hypogynous FRUIT: Achene DISTINGUISHING CHARACTERISTIC COMMENTS: Regarding flower merous, it may be 3, 4 or 5. GEOGRAPHIC INFORMATION: ORIGIN: Introduced- Asia POPULATION DYNAMICS: STATE STATUS: Not listed FEDERAL STATUS: Not listed COMMONNESS: Rare ENDEMIC: NOT-ENDEMIC BIOLOGIC: HABIT: Forb LIFE CYCLE: Annual REPRODUCTION: Sexual FLOWERING PERIOD: MONTH BEGINNING- 8 MONTH END- 9 TROPHIC STATUS: Autotrophic SEX: Unisexual -monoecious ECODISTRIBUTION COMMENTS: Species is rarely distributed as a waif, but is distributed in gardens and wastes. ENVIRONMENTAL RELATIONSHIPS: No data entered FUNCTIONAL RELATIONSHIPS: MAJOR POLLINATION AGENT: Wind MYCORRHIZAE: no HUMAN RELATIONSHIP DATA: ALLERGENIC: Yes EDIBLE: Yes HUMAN FACTOR COMMENTS: Plant is cultivated as a pot herb. Red-leaved form often is cultivated as an ornamental. WILDLIFE AND LIVESTOCK INFORMATION: No data entered REVEGETATION PLANTINGS: WEEDINESS: COLONIZING REFERENCES: Mohlenbrock, R. H., ed. 1975. Guide to the vascular flora of Illinois. Southern Illinois University Press, Carbondale. 494 pp. Steyermark, J. A. 1963. Flora of Missouri. Iowa State University Press, Ames. 1725 pp. Fernald, M. L. 1950. Gray's manual of botany. 8th ed. American Book Co., New York. 1632 pp. Swink, F., and G. S. Wilhelm. 1979. Plants of the Chicago region. Third ed. The Morton Arboretum, Lisle, Illinois. 922 pp. Gleason, H. A. 1952. The new Britton and Brown illustrated flora of the northeastern United States and adjacent Canada. 3 vols. The New York Botanical Garden, New York. Wodehouse, R. P. 1971. Hayfever plants. Hafner Publishing Company, New York. 280 pp. END OF DATA FOR SPECIES Atriplex hortensis ------------------------------------------------------------------------ ILPIN was developed by Louis Iverson*, with data compiled by David Ketzner and Jeanne Karnes Illinois Natural History Survey, 607 E. Peabody Dr., Champaign, IL 61820 *currently employed by USDA Forest Service, 359 Main Rd., Delaware, OH 43015