Cirsium ochrocentrum A. Gray
Yellowspine thistle
Kingdom | Plantae | Plants, but not fungi, lichens, or algae |
Subkingdom | Tracheobionta | Vascular plants—plants with a “circulatory system” for delivering water and nutrients |
Division | Magnoliophyta | Flowering plants, also known as angiosperms |
Class | Magnoliopsida | Dicotyledons—plants with two initial seed leaves |
Subclass | Asteridae | A large class that encompasses asters |
Order | Asterales | Flowering plants with a central disk flower and surrounding petals, like daisies |
Family | Asteraceae | The aster family, which also includes daisies and sunflowers; from the Greek ἀστήρ, “star,” for the star-shaped flowers |
Genus | Cirsium | From Greek kirsion, “a kind of thistle” |
Species | ochrocentrum | |
About plant names...
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Cirsium ochrocentrum description by Thomas H. Kent, last updated 25 May 2020.
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5/15/2014 · American Southwest (AZ or TX) · By Jacquelyn Boyt 
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