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White-Tailed Deer: Table of Contents & Preface Habitat requirements Habitat management Population health/evaluation Population management Appendix A: Appendix B: Appendix C: |
Common names: giant ragweed, horseweed, richweed, bloodweed, great ragweed Scientific names: Ambrosia trifida (A. aptera, A. striata, A. variabilis) Seasons of significant use: spring, summer (for Ambrosia spp. complex) Characteristics: Native, annual, warm season forb to 15.0 feet. Stems erect; sap reddish in color; leaves mostly opposite, simple, usually deeply 2-5 cleft; plants monecious; staminate inflorescences in racemiform branching panicles; pistillate inflorescences in axils of bracts below staminate inflorescences. Flowers August-October. Plant community type: Frequent in moist areas (e.g., stream banks, flood plains, ditches, etc.). Occurs primarily in open areas and wooded open edge situations. Somewhat shade tolerant. More Plant Photos and Descriptions: |
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© 1997-2008 by The Samuel Roberts Noble Foundation, Inc.
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