Lactuca canadensis
| Lactuca canadensis | |
|---|---|
.jpg) | |
| Conservation status | |
| Scientific classification | |
| Kingdom: | Plantae |
| (unranked): | Angiosperms |
| (unranked): | Eudicots |
| (unranked): | Asterids |
| Order: | Asterales |
| Family: | Asteraceae |
| Tribe: | Cichorieae |
| Genus: | Lactuca |
| Species: | L. canadensis |
| Binomial name | |
| Lactuca canadensis L. | |
| Synonyms | |
|
Lactuca sagittifolia | |
Lactuca canadensis is a species of wild lettuce known by the common names Canada lettuce, Canada wild lettuce, tall lettuce,[1] and Florida blue lettuce.[2] Its true native range is not clear,[1] but it is considered to be a native of parts of North America. It can be found in other parts,[3] and on other continents, as an introduced species.
This is a generally biennial herb in the daisy family growing from a taproot to maximum heights between one half and two meters or more. The leaves are deeply lobed and occasionally toothed. The top of the stem bears an inflorescence with many flower heads, each up to a centimeter wide when open. The heads have many pale yellow ray florets. The fruit is a dark-colored achene about half a centimeter long with a white pappus.
References
- ↑ 1.0 1.1 Lactuca canadensis. Germplasm Resources Information Network (GRIN).
- ↑ Lactuca canadensis. ITIS.
- ↑ Lactuca canadensis. The Jepson eFlora 2013.
External links
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Wikimedia Commons has media related to Lactuca canadensis. |