ILLINOIS PLANT INFORMATION NETWORK ILPIN INFORMATION ON Anthoxanthum odoratum CLASS: MONOCOTYLEDENAE ORDER: CYPERALES FAMILY: POACEAE SCIENTIFIC NAME: Anthoxanthum odoratum AUTHORITY: L. COMMON NAMES: SWEET VERMAL GRASS SYNONOMY: None PLANTS CODE: ANCD NATURAL COMMUNITIES: PRAIRIE SAVANNA BARREN CULTURAL AGRICULTURAL FIELD PASTURELAND SUCCESSIONAL FIELD DEVELOPED LAND PLANTATION SAF FOREST COVER TYPE: NO NATURAL DIVISION: UNAVAILABLE COUNTIES: COOK DUPAGE GRUNDY LAKE GROWTH FORM: Monocot TAXONOMIC CHARACTERISTICS: ROOTS: Adventitious (fibrous) LEAF ARRANGEMENT: Alternate LEAF TYPE: Simple LEAF MARGIN: Entire LEAF VENATION: Parallel LEAF SHAPE: Linear INFLORESCENCE: Panicle FLOWER MEROUS: 3 FLOWER STRUCTURE: Complete FLOWER PLACEMENT: Hypogynous FRUIT: Grain DISTINGUISHING CHARACTERISTIC COMMENTS: Spikelets are brownish-green, awns of empty lemmas included or barely exserted, tufted, perennials to nearly 1 m. tall. Versus Anthoxanthum aristatum, has faintly sweet fragrance. GEOGRAPHIC INFORMATION: ORIGIN: Introduced- Europe GEOGRAPHIC COMMENTS: Species is found throughout eastern U.S. and Pacific Coast. Only four extreme northeast counties in Illinois. POPULATION DYNAMICS: STATE STATUS: Not listed FEDERAL STATUS: Not listed COMMONNESS: Uncommon ENDEMIC: NOT-ENDEMIC BIOLOGIC: HABIT: Grasslike LIFE CYCLE: Perennial REPRODUCTION: Sexual FLOWERING PERIOD: MONTH BEGINNING- 5 MONTH END- 8 TROPHIC STATUS: Autotrophic C02 FIXATION: C3 SEX: Perfect ECODISTRIBUTION COMMENTS: Species is distributed along railroads, waste ground; in meadows, lawns, Morton Arboretum. ENVIRONMENTAL RELATIONSHIPS: No data entered FUNCTIONAL RELATIONSHIPS: MYCORRHIZAE: endomycorrhizal HUMAN RELATIONSHIP DATA: ALLERGENIC: Yes WILD HERBS: Culinary-flavor HUMAN FACTOR COMMENTS: This is one of the most "offensive" hayfever grasses. Dried plants may be boiled and used as a tea. "In our opinion, its fragrance is overstressed." (Ref. 7). WILDLIFE AND LIVESTOCK INFORMATION: No data entered REVEGETATION PLANTINGS: WEEDINESS: COLONIZING REFERENCES: Steyermark, J. A. 1963. Flora of Missouri. Iowa State University Press, Ames. 1725 pp. Swink, F., and G. S. Wilhelm. 1979. Plants of the Chicago region. Third ed. The Morton Arboretum, Lisle, Illinois. 922 pp. Mohlenbrock, R. H. 1967-continuing. The illustrated flora of Illinois. Southern Illinois University Press, Carbondale. Downton, W. J. S. 1975. The occurrence of C4 photosynthesis among plants. Photosynthetica 9(1): 96-105. END OF DATA FOR SPECIES Anthoxanthum odoratum ------------------------------------------------------------------------ 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