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Plants › Sunflowers, Daisies, Asters, and Allies

Roughstem rosinweed

Silphium radula

Learn Roughstem rosinweed freeHow it works
Wildlife study photograph from iNaturalist.
(c) annikaml, some rights reserved (CC BY)

25 photos

Study shows up to four per card, from different observers, so you learn the species rather than one picture. Heart the good ones and swap any you do not like.

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Photos you add are credited to you, and you keep the copyright.

Easily confused with

Study checks a spoken answer against these, and tells you which one you named.

Where it is recorded

Records by month in Texas.January 73, February 70, March 79, April 151, May 109, June 189, July 122, August 43, September 49, October 53, November 69, December 67.
United States1,029
Texas830
Arkansas97
Oklahoma48
Louisiana28
Missouri11
Mississippi10
Kansas3
New Mexico1
Alabama1

Counts show where people looked, not only where it lives.

Traits

Group and habits

  • Forb or herb growth formListed by a harvested source as having a forb or herbaceous growth form.USDA PLANTS Characteristics
  • Perennial plantListed by a harvested source as having a perennial life duration.USDA PLANTS Characteristics
  • Pollinator-associated plantDescends from a plant lineage commonly associated with pollinators.Inferred from its group

Classification

KingdomPlants · Plantae
PhylumVascular Plants · Tracheophyta
ClassDicots · Magnoliopsida
OrderSunflowers, Bellflowers, Fanflowers, and Allies · Asterales
FamilySunflowers, Daisies, Asters, and Allies · Asteraceae
GenusRosinweeds · Silphium

Study it in a deck

Or build your own from the species near you.

Sources

Remember the name next time.

Practise Roughstem rosinweed with real photos from different observers. Say the name out loud, and it comes back just before you would forget it.

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