Silphium (genus)
| rosinweeds | |
|---|---|
 |
|
| Silphium integrifolium | |
| Scientific classification | |
| Kingdom: | Plantae |
| (unranked): | Angiosperms |
| (unranked): | Eudicots |
| (unranked): | Asterids |
| Order: | Asterales |
| Family: | Asteraceae |
| Subfamily: | Asteroideae |
| Tribe: | Heliantheae |
| Genus: |
Silphium L. |
| Type species | |
|
Silphium asteriscus L. |
|
Silphium is a genus of North American plants in the sunflower tribe within the daisy family.
Members of the genus, commonly known as rosinweeds, are herbaceous perennial plants growing to 0.5–4 m tall, with yellow (rarely white) flowerheads. The name of the genus comes from the Ancient Greek word for a North African plant whose identity has been lost, though it is known its gum or juice was prized by the ancients as a medicine and a condiment.
numerous species now regarded as members of other genera: Berlandiera Verbesina
Silphium integrifolium (rosinweed) flowers
Silphium laciniatum (compass plant) leaves
Silphium perfoliatum (cup plant) flowers in Lower Saxony, Germany
Silphium terebinthinaceum (prairie dock) leaves
...
Wikipedia