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Asters, Groundsels, and especially Thistles, afford most familiar examples of a hairy or downy pappus; those of thistles, &c.

The flowers are insect pollinated, and various thistle species are widely known as important food sources for butterflies, as ...

American goldfinches (Spinus tristis) can be entertaining to watch as they contort to pluck food from plants and do aerial somersaults. Their bright coloring also makes them attractive little ...

Thistles are a marvelous group of plants. Botanists place them all as members of the sunflower (or aster) family, which is a ...

Andrew Wight is a science journalist covering the Global South Indigenous conservationists are helping to save the Red Siskin (Spinus cucullatusa) — an endangered little red bird — after it ...

Now, why should you mix up and swim your off stroke? Every stroke strikes a unique muscle group that another stroke can’t.

While you can find an American goldfinch (Spinus tristis) just about anywhere in the United States, they’re present year-round in the northern half of the US and during the breeding season in the ...

In Venezuela, the red siskin (Spinus cucullatus), a vibrantly colored red and black finch, is inextricably linked with the country’s identity. The cardenalito, as it is known in Spanish ...

Thistles are a marvelous group of plants. Botanists place them all as members of the sunflower (or aster) family, which is a ...