Helianthus agrestis | |
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Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Asterids |
Order: | Asterales |
Family: | Asteraceae |
Genus: | Helianthus |
Species: | H. agrestis
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Binomial name | |
Helianthus agrestis |
Helianthus agrestis is a species of sunflower known by the common name southeastern sunflower. It is one of 150 sunflower species in the genus Helianthus. [1] It is found only in the states of Florida and Georgia in the southeastern United States. [2] [3] This plant is native to Florida. [4] It grows in wet soil in marshes and pine flatwoods at elevations less than 50 meters (170 feet) elevation. [5] [6]
Helianthus agrestis plants can grow up to one meter tall. Helianthus agrestis is a flowering plant that has bright orange-yellow rays. [6] Each plant can have about 10-15 rays and up to 50 disc florets. [5] The bright colors on this plant make it attractive to many pollinators. [7] The leaves of this plant are oval shaped and have a petiolate attachment and alternate on the stem. [5] [6] The stem is branched and hairy with some pubescence. [6]
Helianthus agrestis are an annual species that flower in the late summer to early fall months. [5]Helianthus species require a lot of sun to grow. For optimal growth, the plant should get at least 6 hours of full sun a day. [1] Sunflower seeds also contain a toxic substance that will kill all nearby grass. [8]
Helianthus agrestis is native to Florida. Outside of Florida, it is also only found in Thomasville, Georgia. [9]
Helianthus agrestis is a popular plant amongst humans for cosmetic and decorative purposes. In wildlife, birds and small mammals consume Helianthus agrestis seeds. [4] It is primarily pollinated by bees. [4]