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Rosinweed

Rosinweed

Overview
Rosinweed (Silphium) is a genus of about 20 species of flowering plant
Flowering plant
The flowering plants or angiosperms are the most diverse group of land plants. The flowering plants and the gymnosperms are the only extant groups of seed plants...

s in the family Asteraceae
Asteraceae
The family Asteraceae or Compositae is the second largest family of flowering plants, in terms of number of species....

, native to eastern North America
North America
North America is the northern continent of the Americas, situated in the Earth's northern hemisphere and in the western hemisphere. It is bordered on the north by the Arctic Ocean, on the east by the North Atlantic Ocean, on the southeast by the Caribbean Sea, and on the west by the North Pacific...

. They are herbaceous
Herbaceous
A herbaceous plant is a plant that has leaves and stems that die down at the end of the growing season to the soil level. They have no persistent woody stem above ground...

 perennial plant
Perennial plant
A perennial plant or perennial is a plant that lives for more than two years. When used by gardeners or horticulturalists, this term applies specifically to perennial herbaceous plants...

s growing to 0.5-4 m tall, with yellow (rarely white) flowerheads. The name of the genus comes from the Ancient Greek
Ancient Greek
Ancient Greek is the historical stage in the development of the Greek language spanning across the Archaic , Classical , and Hellenistic periods of ancient Greece and the ancient world. It is predated in the 2nd millennium BC by Mycenaean Greek...

 word for a North African plant whose identity has been lost, though we know its gum or juice was prized by the ancients as a medicine and a condiment.
  • Silphium albiflorum A.Gray – White Rosinweed
  • Silphium asteriscus
    Silphium asteriscus
    Silphium asteriscus also known as starry rosinweed is the type species of the genus Silphium and a member of the family Asteraceae....

    L.
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Encyclopedia
Rosinweed (Silphium) is a genus of about 20 species of flowering plant
Flowering plant
The flowering plants or angiosperms are the most diverse group of land plants. The flowering plants and the gymnosperms are the only extant groups of seed plants...

s in the family Asteraceae
Asteraceae
The family Asteraceae or Compositae is the second largest family of flowering plants, in terms of number of species....

, native to eastern North America
North America
North America is the northern continent of the Americas, situated in the Earth's northern hemisphere and in the western hemisphere. It is bordered on the north by the Arctic Ocean, on the east by the North Atlantic Ocean, on the southeast by the Caribbean Sea, and on the west by the North Pacific...

. They are herbaceous
Herbaceous
A herbaceous plant is a plant that has leaves and stems that die down at the end of the growing season to the soil level. They have no persistent woody stem above ground...

 perennial plant
Perennial plant
A perennial plant or perennial is a plant that lives for more than two years. When used by gardeners or horticulturalists, this term applies specifically to perennial herbaceous plants...

s growing to 0.5-4 m tall, with yellow (rarely white) flowerheads. The name of the genus comes from the Ancient Greek
Ancient Greek
Ancient Greek is the historical stage in the development of the Greek language spanning across the Archaic , Classical , and Hellenistic periods of ancient Greece and the ancient world. It is predated in the 2nd millennium BC by Mycenaean Greek...

 word for a North African plant whose identity has been lost, though we know its gum or juice was prized by the ancients as a medicine and a condiment.

Species

  • Silphium albiflorum A.Gray – White Rosinweed
  • Silphium asteriscus
    Silphium asteriscus
    Silphium asteriscus also known as starry rosinweed is the type species of the genus Silphium and a member of the family Asteraceae....

    L. – Starry Rosinweed
  • Silphium brachiatum Gatt. – Cumberland Rosinweed
  • Silphium compositum Michx. – Kidneyleaf Rosinweed
  • Silphium glutinosum J.R.Allison – Sticky Rosinweed
  • Silphium gracile A.Gray – Slender Rosinweed
    • Silphium radula Nutt. var. gracile (A.Gray) Clevinger
  • Silphium integrifolium
    Silphium integrifolium
    Silphium integrifolium is a tall growing herbaceous perennial plant in Asteraceae. It is native from central North America.Three inch daily flowers top 3 to 5 foot plants in mid to late summer. Grows in full sun and any soil. Great for the prairie wild flower garden as the hearty seeds attract...

    Michx. – Wholeleaf Rosinweed
  • Silphium laciniatum
    Silphium laciniatum
    Silphium laciniatum is a species of flowering plant in the genus Silphium...

    L. – Compassplant
  • Silphium mohrii Small – Mohr's Rosinweed
  • Silphium perfoliatum
    Silphium perfoliatum
    Silphium perfoliatum is a herbaceous perennial flowering plant in Asteraceae, the aster family, it is native from Eastern and Central North America. It grows in prairies, open woodlands, and on stream banks....

    L. – Cup Plant
  • Silphium perplexum J.R.Allison – Old Cahaba Rosinweed
  • Silphium pinnatifidum Ell. – Tansy Rosinweed
    • Silphium terebinthinaceum Jacq. var. pinnatifidum (Elliott) A.Gray
  • Silphium radula Nutt. – Roughstem Rosinweed
  • Silphium reverchonii Bush – Reverchon's Rosinweed
  • Silphium scaberrimum Ell. – Roughleaf Rosinweed
  • Silphium simpsonii Greene – Simpson's Rosinweed
  • Silphium terebinthinaceum Jacq. – Prairie Rosinweed, Prairie Dock
  • Silphium trifoliatum L. – Whorled Rosinweed
  • Silphium wasiotense M.Medley – Appalachian Rosinweed

Sources: FNA, IPNI, NRCS, GRIN, ITIS, UniProt

External links