The rosinweeds (Silphium) are a genus of about 20 species of flowering plants in the family Asteraceae, native to eastern North America. They are herbaceous perennial plants growing to 0.5-4 m tall, with yellow (rarely white) flowerheads.

Species

• Silphium albiflorum – White Rosinweed
• Silphium asteriscus – Starry Rosinweed
• Silphium brachiatum – Cumberland Rosinweed
• Silphium compositum – Kidneyleaf Rosinweed
• Silphium glutinosum – Sticky Rosinweed
• Silphium gracile – Slender Rosinweed
• Silphium integrifolium – Wholeleaf Rosinweed
• Silphium laciniatum – Compassplant
• Silphium mohrii – Mohr's Rosinweed
• Silphium perfoliatum – Cup Plant
• Silphium perplexum – Old Cahaba Rosinweed
• Silphium pinnatifidum – Tansy Rosinweed
• Silphium radula – Roughstem Rosinweed
• Silphium reverchonii – Reverchon's Rosinweed
• Silphium scaberrimum – Roughleaf Rosinweed
• Silphium simpsonii – Simpson's Rosinweed
• Silphium terebinthinaceum – Prairie Rosinweed
• Silphium trifoliatum – Whorled Rosinweed
• Silphium wasiotense – Appalachian Rosinweed

References

• USDA Plant Profile: Silphium

Asteraceae