Plants › Sunflowers, Daisies, Asters, and Allies
spotted knapweed
Centaurea stoebe
28 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.
Photos you add are credited to you, and you keep the copyright.
Easily confused with
Brown KnapweedCentaurea jacea
Greater KnapweedCentaurea scabiosa
Tyrol knapweedCentaurea nigrescens
diffuse knapweedCentaurea diffusa
creeping thistleCirsium arvense
black knapweedCentaurea nigra
Russian knapweedRhaponticum repens
Jersey KnapweedCentaurea paniculata
Study checks a spoken answer against these, and tells you which one you named.
Where it is recorded
| United States | 29,941 |
|---|---|
| Alaska | 9,074 |
| Canada | 6,746 |
| Michigan | 4,316 |
| Ontario | 3,386 |
| New York | 3,022 |
| British Columbia | 2,786 |
| Wisconsin | 2,755 |
| Massachusetts | 2,597 |
| Minnesota | 1,905 |
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
- Biennial plantListed by a harvested source as having a biennial life duration.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
| Kingdom | Plants · Plantae |
|---|---|
| Phylum | Vascular Plants · Tracheophyta |
| Class | Dicots · Magnoliopsida |
| Order | Sunflowers, Bellflowers, Fanflowers, and Allies · Asterales |
| Family | Sunflowers, Daisies, Asters, and Allies · Asteraceae |
| Genus | knapweeds · Centaurea |
Study it in a deck
Or build your own from the species near you.
Sources
- Names, taxonomy and observation counts: www.inaturalist.org
- Photos and recordings: the creator and source are on each one.
- Traits: USDA PLANTS Characteristics (U.S. Government work / public domain)
- How much to rely on each source
Remember the name next time.
Practise spotted knapweed with real photos from different observers. Say the name out loud, and it comes back just before you would forget it.