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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. Description. Iva annua is an annual herb up to 150 cm (5 feet) tall.
1 dzień temu · 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.
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.
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)
Hayes Iva, also known as San Diego marsh elder, is an evergreen shrub with a naturally sprawling habit with branches extending to 2 – 3 ft. tall and plants reaching 4 – 5 ft. wide. It is characterized by pale green leaves and spikes covered with tiny yellow flowers during spring.
Iva hayesiana is a rare species of flowering plant in the daisy family known by the common names San Diego marsh-elder and San Diego povertyweed. It is native to Baja California, and to California only in the vicinity of San Diego.
18 sty 2024 · From sandy to heavy soils this plant will thrive! It is very drought tolerant and can tolerate extra moisture in low lying areas. This is a great choice for erosion control on slopes. Has tiny yellow flowers in the spring. Makes a nice low growing hedge or groundcover for bioswales.
