Description: The solitary axillary flowering heads are nearly inconspicuous hanging under the subtending leaf and being greenish in color. Date: 18 August 2009, 10:37. Source: Iva axillaris Uploaded by Jacopo Werther. Author: Matt Lavin from Bozeman, Montana, USA. Camera location43° 39′ 37.07″ N, 112° 50′ 59.44″ WView all coordinates using: OpenStreetMap 43.660297; -112.849845.
Summary[edit] Description: Giant sumpweed (Iva xanthifolia syn. Cyclachaena xanthiifolia), Aster family (Asteraceae). Shoreline of the East Canyon Reservoir, Utah. Date: 19 August 2015, 10:43. Source: 2015.08.19_10.43.26_IMG_0192. Author: Andrey Zharkikh from Salt Lake City, USA.
Description: Although on generally sparsely covered moderately disturbed sites, Iva axillaris will sometimes grow among the sagebrush. Date: 14 June 2005, 10:42. Source: Iva axillaris Uploaded by Jacopo Werther. Author: Matt Lavin from Bozeman, Montana, USA. Camera location47° 43′ 39.58″ N, 107° 40′ 49.57″ WView all coordinates using: OpenStreetMap 47.727661; -107.680437.
Summary[edit] Description: Giant sumpweed (Iva xanthifolia syn. Cyclachaena xanthiifolia), Aster family (Asteraceae). Shoreline of the East Canyon Reservoir, Utah. Date: 17 August 2015, 18:03. Source: 2015.08.17_18.03.53_DSCN2860. Author: Andrey Zharkikh from Salt Lake City, USA.
Summary[edit] Description: Povertyweed (Iva axillaris), Aster family (Asteraceae). Along the public trail in the Swaner EcoCenter, Utah. Date: 20 August 2016, 12:55. Source: 2016.08.20_12.55.08_IMG_7879. Author: Andrey Zharkikh from Salt Lake City, USA.
Description: The white staminate flower have an abortive ovary. The large dark achenes are from the pistillate flowers that don't produce much of a corolla. Date: 16 October 2010, 21:04. Source: Iva xanthifolia Uploaded by Tim1357. Author: Matt Lavin from Bozeman, Montana, USA. Camera location45° 38′ 17.83″ N, 111° 32′ 19.31″ WView all coordinates using: OpenStreetMap 45.638286; -111.538698.
Summary[edit] Description: Povertyweed (Iva axillaris), Aster family (Asteraceae). Along the Jordan River, Utah. Date: 22 August 2015, 12:13. Source: 2015.08.22_12.13.39_DSCN2891. Author: Andrey Zharkikh from Salt Lake City, USA.
Description: Iva axillaris tend to grow on well drained gravelly or sandy soils often where periodically disturbed. Date: 18 August 2009, 10:36. Source: Iva axillaris Uploaded by Jacopo Werther. Author: Matt Lavin from Bozeman, Montana, USA. Camera location43° 39′ 37.07″ N, 112° 50′ 59.44″ WView all coordinates using: OpenStreetMap 43.660297; -112.849845.
Summary[edit] Description: Giant sumpweed (Iva xanthifolia syn. Cyclachaena xanthiifolia), Aster family (Asteraceae). Shoreline of the East Canyon Reservoir, Utah. Date: 19 August 2015, 10:41. Source: 2015.08.19_10.41.29_IMG_0190. Author: Andrey Zharkikh from Salt Lake City, USA.
Summary[edit] Description: Giant sumpweed (Iva xanthifolia syn. Cyclachaena xanthiifolia), Aster family (Asteraceae). Shoreline of the East Canyon Reservoir, Utah. Date: 19 August 2015, 10:40. Source: 2015.08.19_10.40.18_IMG_0188. Author: Andrey Zharkikh from Salt Lake City, USA.
Summary[edit] Description: Giant sumpweed (Iva xanthifolia syn. Cyclachaena xanthiifolia), Aster family (Asteraceae). Shoreline of the East Canyon Reservoir, Utah. Date: 19 August 2015, 10:42. Source: 2015.08.19_10.42.06_IMG_0191. Author: Andrey Zharkikh from Salt Lake City, USA.
Summary[edit] Description: Giant sumpweed (Iva xanthifolia syn. Cyclachaena xanthiifolia), Aster family (Asteraceae). Shoreline of the East Canyon Reservoir, Utah. Date: 17 August 2015, 18:03. Source: 2015.08.17_18.03.47_DSCN2859. Author: Andrey Zharkikh from Salt Lake City, USA.