- Plants
- ›Vascular Plants
- ›flowering plants
- ›Dicots
- ›Sunflowers, Bellflowers, Fanflowers, and Allies
- ›Sunflowers, Daisies, Asters, and Allies
- ›Asteroideae
- ›Sunflowers and Allies
- ›Engelmanniinae
Rosinweeds
Silphium
Silphium is a genus of North American plants in the tribe Heliantheae within the family Asteraceae.
Members of the genus, commonly known as rosinweeds, are herbaceous perennial plants growing to 0.2 m (8 in) to more than 2.5 m (8 ft 2 in) tall, with yellow (rarely white) flowerheads that resemble sunflowers. In the rosinweeds, the ray florets in the head are female and the disc florets are male; this differs from sunflowers, where ray florets are sterile and disc florets are perfect, capable of producing both pollen and seeds.
21 branches of this genus, most-observed first
cup plant
speciesSilphium perfoliatum
compass plant
speciesSilphium laciniatum
prairie rosinweed
speciesSilphium integrifolium
prairie dock
speciesSilphium terebinthinaceum
Starry rosinweed
speciesSilphium asteriscus
Kidney-leaf Rosinweed
speciesSilphium compositum
Roughstem rosinweed
speciesSilphium radula
White rosinweed
speciesSilphium albiflorum
Slender Rosinweed
speciesSilphium gracile
Gates' Rosinweed
speciesSilphium asperrimum
tansy rosinweed
speciesSilphium pinnatifidum
Mohr's Rosinweed
speciesSilphium mohrii
Sticky Rosinweed
speciesSilphium glutinosum
Cumberland Rosinweed
speciesSilphium brachiatum
Ragged Rosinweed
speciesSilphium reniforme
compass dock
hybridSilphium laciniatum × terebinthinaceum
Black Belt Rosinweed
speciesSilphium confertifolium
Appalachian Rosinweed
speciesSilphium wasiotense
Old Cahaba Rosinweed
speciesSilphium perplexum
Silphium integrifolium × perfoliatum
hybridSilphium integrifolium × perfoliatum
Silphium integrifolium × laciniatum
hybridSilphium integrifolium × laciniatum
Where it lives
Recorded sightings
—
geo-referenced records in GBIF, from museums, herbaria and field observers.
Drag the globe to turn it. Dots are where records exist, not a range map; darker means more records.
In the old herbals & bestiaries
In the stacks
Searching the stacks…
Every page naming Silphium in the Biodiversity Heritage Library →
This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 54006.