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7 sty 2015 · This datasheet on Iva xanthiifolia covers Identity, Overview, Distribution, Dispersal, Hosts/Species Affected, Diagnosis, Biology & Ecology, Environmental Requirements, Natural Enemies, Impacts, Uses, Prevention/Control, Further Information.
1 dzień temu · Genus Details. Iva are annuals or tall perennials. Eleven species are native to North America. Plants grow 1 to 6.5 feet tall in wet conditions along the Atlantic and Gulf Coastal states and in the western U.S. One species, burweed marshelder (I. Xanthifolia) looks similar to giant ragweed, but the leaves have no deep lobes.
Iva annua, the annual marsh elder [3] or sumpweed, is a North American herbaceous annual plant in the family Asteraceae that was historically cultivated by Native Americans for its edible seed.
How to Identify Marsh Elder (Iva annua)This is Marshelder or sumpweed, a member of the family Asteraceae that is native to North America.
Iva annua L. (Marsh-elder, Pelocote, Rough marsh-elder, Sumpweed, Annual marsh elder, Annual marshelder, Seacoast sumpweed). Family Asteraceae. Genus Iva. World flora
Iva axillaris – “Povertyweed”. Also Known As: Poverty Sumpweed, Deathweed, Devil’s Weed, Small-Flowered Marsh Elder, Salt-Sage, Bozzleweed. Other Botanical Names: Iva axillaris subsp. robustior. Family: Sunflower (Asteraceae)
Flower Color: Green, White, Yellow. Seed Type: Non-Encapsulated. Duration: Annual, Biennial. Stem Texture: Hairless/Smooth. Growth Habit: Forbs/Broadleaf. Leaf Shape: Simple with Pinnate or Parallel Venation. Season: Warm