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Helianthus annuus L.
Helianthus annuus L. ssp. jaegeri (Heiser) Heiser
Helianthus annuus L. ssp. lenticularis (Douglas ex Lindl.) Cockerell
Helianthus annuus L. var. lenticularis (Douglas ex Lindl.) Steyerm.
Helianthus annuus L. var. macrocarpus (DC.) Cockerell
Helianthus annuus L. ssp. texanus Heiser
Helianthus annuus L. var. texanus (Heiser) Shinners
Helianthus aridus Rydb.
Helianthus lenticularis Douglas ex Lindl.
Sunflower
| 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 | Helianthus | From Greek helios, “sun,” and anthos, “flower,” because it was believed that sunflowers turn to follow the sun |
| Species | annuus | “Annual,” a plant that lives for a single season |
About plant names...
[An article has not been written yet.]
Helianthus annuus description by Thomas H. Kent, last updated 25 May 2020.
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8/27/2014 · Sandy Walk, Petroglyph National Monument, New Mexico
≈ 6 × 6" (14 × 15 cm)  ID is uncertain 
8/29/2014 · New Mexico · By Susan M. Kent
≈ 11 × 7" (27 × 18 cm)
8/29/2014 · New Mexico · By Susan M. Kent
8/29/2014 · New Mexico · By Susan M. Kent
≈ 5½ × 4' (1.8 × 1.2 m)
8/27/2014 · Sandy Walk, Petroglyph National Monument, New Mexico
≈ 9 × 6" (22 × 16 cm) ID is uncertain
9/21/2008 · Camden, Maine
≈ 15 × 10" (38 × 25 cm) ID is uncertain
Range:
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