Plants › phlox family
Northern Jacob's-ladder
Polemonium boreale
27 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
Pretty Jacob's-ladderPolemonium pulcherrimum
Tall Jacob's-ladderPolemonium acutiflorum
Blue Jacob's LadderPolemonium caeruleum
Alaska Jacob's-ladderPolemonium villosissimum
Polemonium pulchellum
Study checks a spoken answer against these, and tells you which one you named.
Where it is recorded
| United States | 1,345 |
|---|---|
| Russia | 314 |
| Canada | 187 |
| Alaska | 160 |
| Krasnoyarsk Krai | 97 |
| Yamalo-Nenets Autonomous Okrug | 66 |
| Kamchatka Krai | 66 |
| Yukon | 54 |
| Nunavut | 23 |
| British Columbia | 20 |
Counts show where people looked, not only where it lives.
Traits
Physical
- Aquatic larvaLarval stage lives in water before becoming terrestrialFrom its classification
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
Classification
| Kingdom | Plants · Plantae |
|---|---|
| Phylum | Vascular Plants · Tracheophyta |
| Class | Dicots · Magnoliopsida |
| Order | Heathers, Balsams, Primroses, and Allies · Ericales |
| Family | phlox family · Polemoniaceae |
| Genus | Jacob's ladders · Polemonium |
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 Northern Jacob's-ladder with real photos from different observers. Say the name out loud, and it comes back just before you would forget it.