Summary[edit] Description: English: Silphium radula, in an open area at the base of a north-facing wooded bluff along the South Fork of the Guadalupe River, east of the mouth of Cherry Creek. Kerr County, Texas. Date: created 29 June 2017. Source: Own work. Author: Mason Brock (Masebrock). Permission(Reusing this file): No copyright.
Summary[edit] Description: English: Silphium asteriscus in NPG of Mounts Botanical Garden, West Palm Beach, FL,USA. Date: 29 April 2018, 11:07:56. Source: Own work. Author: KATHERINE WAGNER-REISS.
close up image of Silphium integrifolium deamii DEAM'S ROSINWEED at the James Woodworth Prairie Preserve - showing opposite leaf pairs that rotate 90 degrees as each pair goes up the stalk, giving this species its stiff, formal look.
field image of Silphium terebinthinaceum PRAIRIE DOCK at the James Woodworth Prairie Preserve - a thick stand at full bloom; average height of flowering heads is about 7-8 feet (213-244 cm).
Leaf arrangement of Cupplant displayed. The leaves positioned opposite of each other on the square stems are in fact connected and collect water from rain or dew. This attracts a variety of insects like butterflies, and birds such as Ruby-throated Hummingbirds. Currently considered a Threatened species in Michigan.
Summary[edit] Description: field image of Silphium terebinthinaceum PRAIRIE DOCK at the James Woodworth Prairie Preserve - another thick stand at full bloom showing flowers after a controlled burn the previous fall. Date: 28 November 2005, 17:43. Source: Silphium terebinthinaceum PRAIRIE DOCK. Author: Frank Mayfield from Chicago area, USA.
Summary[edit] Description: I love these - even without flowers. Date: 13 June 2012, 12:35. Source: Silphium laciniatum. Author: peganum from Small Dole, England.
close up image of Silphium integrifolium deamii DEAM'S ROSINWEED at the James Woodworth Prairie Preserve - showing two flower heads with many flower buds and three full open blooms.
Summary[edit] Description: field image of Silphium terebinthinaceum PRAIRIE DOCK at the James Woodworth Prairie Preserve - a thick stand of basal leaves, indicating many individual specimen, at full open; these leaves at about 18 inches (46 cm) tall by 9-12 inches (23-30 cm) wide are unique and distinct. Date: 31 May 2010, 08:02. Source: Silphium terebinthinaceum PRAIRIE DOCK. Author: Frank Mayfield from Chicago area, USA.
Summary[edit] Description: image of Silphium laciniatum COMPASS PLANT at the James Woodworth Prairie Preserve -. Date: 5 May 2010, 07:52. Source: Silphium laciniatum COMPASS PLANT. Author: Frank Mayfield from Chicago area, USA.