Plants › phlox family

Blue Jacob's Ladder

Polemonium caeruleum

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Wildlife study photograph from iNaturalist. — (c) tikhomirovvalery, some rights reserved (CC BY-NC)

All photos28

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.

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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 Alaska.

United States	18,529
Alaska	18,264
Russia	3,541
Sverdlovsk Oblast	396
Novosibirsk Oblast	358
Moscow Oblast	274
Altai Krai	229
Tomsk Oblast	161
United Kingdom	158
Finland	137

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

Medicinal useListed as having medicinal use by a harvested source. This is not medical advice.Kew World Checklist of Useful Plant Species
Restoration or landscaping useListed as being used for restoration, landscaping, ornamental planting, erosion control, soil improvement, shade, windbreaks, pollution indicators, or wastewater purification.Kew World Checklist of Useful Plant Species
Forb or herb growth formListed by a harvested source as having a forb or herbaceous growth form.USDA PLANTS Characteristics
Wetland-associatedListed by a harvested source as obligate or frequent in wetland habitat.USDA PLANTS Characteristics
Perennial plantListed by a harvested source as having a perennial life duration.USDA PLANTS Characteristics

Edibility, toxicity and medicinal traits are records from datasets, not advice. Never eat, handle or use a wild species on the strength of an app.

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: Kew World Checklist of Useful Plant Species (CC BY 4.0)
Traits: USDA PLANTS Characteristics (U.S. Government work / public domain)
How much to rely on each source

Remember the name next time.

Practise Blue Jacob's Ladder 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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