Euthamia

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Euthamia
Euthamia graminifolia - Grass Leaf Goldenrod.jpg
Euthamia graminifolia , grass-leaved goldenrod
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Subfamily: Asteroideae
Tribe: Astereae
Subtribe: Gutiereziinae
Genus: Euthamia
Nutt. ex Cass.
Synonyms [1]
  • Solidago sect. EuthamiaNutt.

Euthamia is a genus of flowering plants in the family Asteraceae. [2] [3] They are known as goldentops [4] and grass-leaved goldenrods. [5] [6]

The species were formerly classed in genus Solidago . They were separated on the basis of morphological differences, such as the arrangement of the flower heads in the inflorescence and the glands on the leaves, and of DNA data. [7] Authors have recognized 5 to 10 species. [5] They are native to North America, but certain species are introduced in Europe and Asia. [7]

These species are quite variable in appearance, the variation often influenced by environmental conditions. In general, they are rhizomatous perennial herbs or subshrubs growing erect stems 0.4–2 m (1 ft 4 in – 6 ft 7 in) tall. The stems are hairy to hairless and branching or unbranched. The leaves are alternately arranged along the stem. They are linear to lance-shaped, smooth-edged, hairy to hairless, and gland-dotted, if sometimes sparsely. The flower heads are solitary or borne in a dense or spreading array. The back of the head is layered in phyllaries which may be resinous. There are 7 to 22 yellow ray florets, sometimes more, and several yellow disc florets. The fruit is a rough-textured cypsela tipped with a pappus of white bristles. [7]

Euthamia species are used as food plants by the larvae of some Lepidoptera species including Coleophora intermediella , which feeds exclusively on E. graminifolia.

Species [1] [7] [8] [9]

Related Research Articles

<i>Solidago</i> Genus of plants in the family Asteraceae

Solidago, commonly called goldenrods, is a genus of about 100 to 120 species of flowering plants in the family Asteraceae. Most are herbaceous perennial species found in open areas such as meadows, prairies, and savannas. They are mostly native to North America, including Mexico; a few species are native to South America and Eurasia. Some American species have also been introduced into Europe and other parts of the world.

<span class="mw-page-title-main">Goldenrod</span> Index of plants with the same common name

Goldenrod is a common name for many species of flowering plants in the sunflower family, Asteraceae, commonly in reference to the genus Solidago.

<i>Eurybia</i> (plant) Genus of flowering plants in the family Asteraceae

Eurybia is a genus of plants in the family Asteraceae that were previously included in the genus Aster. Most species are native to North America, although one is also present in northern Eurasia. There are 23 species in the genus, including 1 natural hybrid. The name was first applied by Alexandre de Cassini in 1820. The name is derived from Ancient Greek εὐρύς (eurús), meaning "wide", and βαιός (baiós), meaning "few", perhaps in reference to the small number of relatively wide ray florets.

<i>Euthamia occidentalis</i> Species of flowering plant

Euthamia occidentalis is a flowering plant, known by the common names western flat topped goldenrod, western goldentop and western goldenrod, in the family Asteraceae.

<i>Euthamia graminifolia</i> Species of flowering plant

Euthamia graminifolia, the grass-leaved goldenrod or flat-top goldentop, is a North American species of plants in the family Asteraceae.

<i>Chaetopappa ericoides</i> Species of flowering plant

Chaetopappa ericoides is a species of flowering plant in the family Asteraceae known by the common names rose heath and heath-leaved chaetopappa. It is native to the southwestern and western Great Plains regions of the United States, plus northern Mexico. It is found in California, Nevada, Arizona, Utah, New Mexico, Colorado, Wyoming, Texas, Oklahoma, Kansas, Nebraska, Chihuahua, Coahuila, Sonora, Durango, Zacatecas, San Luis Potosí, and Nuevo León.

<i>Calycadenia villosa</i> Species of flowering plant

Calycadenia villosa is an uncommon species of flowering plant in the family Asteraceae known by the common name dwarf western rosinweed. It is endemic to central California, where it is known from a limited distribution in the Central Coast Ranges in Monterey County and San Luis Obispo County, with a few populations in Santa Barbara and western Fresno Counties. There are perhaps 16 occurrences.

<i>Madia glomerata</i> Species of flowering plant

Madia glomerata is a species of flowering plant in the family Asteraceae known by the common name mountain tarweed.

<i>Madia sativa</i> Species of plant

Madia sativa, known by the common names coast tarweed and Chilean tarweed, is a species of flowering plant in the family Asteraceae found in parts of western North and South America.

<i>Pyrrocoma racemosa</i>

Pyrrocoma racemosa is a species of flowering plant in the family Asteraceae known by the common name clustered goldenweed. It is native to the western United States, where it grows in many types of habitat. It is quite variable in morphology, and there are several varieties which are sometimes hard to tell apart. In general, it is a perennial herb usually producing two or more mostly erect stems reaching maximum heights between 15 and 90 centimeters. The stems are reddish or brownish in color, leafy or not, and hairless to quite woolly. The longest leaves are located in tufts around the base of the stems. They are lance-shaped to oval, smooth-edged, wavy, or deeply spine-toothed, and may exceed 30 centimeters in length. Basal leaves are borne on woolly petioles. Leaves located higher on the stem lack petioles and may clasp the stem at their bases. The inflorescence is a cluster of several flower heads lined with phyllaries which may be over a centimeter long and are hairy to hairless in texture. Each head contains many yellow disc florets and a fringe of several yellow ray florets. The fruit is an achene which may be over a centimeter long including its pappus.

<i>Solidago spectabilis</i> Species of flowering plant

Solidago spectabilis is a species of goldenrod known by the common names Nevada goldenrod, basin goldenrod, and showy goldenrod. It is native to the western United States in the Great Basin and surrounding areas. It is found in California, Arizona, Nevada, Oregon, and Utah. There are historical records saying it once grew in southwestern Idaho, but is now extirpated there. This variety has also been seen in the western Montana county of Sanders.

<i>Solidago missouriensis</i> Species of flowering plant

Solidago missouriensis is a species of flowering plant in the family Asteraceae known by the common names Missouri goldenrod and prairie goldenrod. It is native to North America, where it is widespread across much of Canada, the United States, and northern Mexico. It grows from British Columbia east to Manitoba, south as far as Sonora, Coahuila, Texas, and Mississippi.

<i>Solidago villosicarpa</i> Species of flowering plant

Solidago villosicarpa is a species of flowering plant in the family Asteraceae known by the common names hairy-seed goldenrod, coastal goldenrod, glandular wand goldenrod, and shaggy-fruit goldenrod. It is endemic to North Carolina in the United States, where there are only four known populations.

<i>Pityopsis graminifolia</i> Species of plant

Pityopsis graminifolia is a species of flowering plant in the family Asteraceae known by the common names grass-leaved golden-aster and narrowleaf silkgrass. It is native to the southeastern United States, occurring as far north as Ohio and Maryland.

<i>Tetraneuris acaulis</i>

Tetraneuris acaulis is a North American species of flowering plants in the sunflower family. Common names include angelita daisy, stemless four-nerve daisy, stemless hymenoxys, butte marigold, and stemless rubberweed.

<i>Euthamia gymnospermoides</i> Species of flowering plant

Euthamia gymnospermoides, with the common names Great Plains goldentop and Texas goldentop, is a plant in the family Asteraceae.

<i>Solidago arguta</i> Species of flowering plant

Solidago arguta, commonly called Atlantic goldenrod, cut-leaf goldenrod, and sharp-leaved goldenrod, is a species of flowering plant native to eastern and central North America. It grows along the Gulf and Atlantic states of the United States from Texas to Maine, inland as far as Ontario, Illinois, and Kansas. It is primarily found in areas of woodland openings, such as outcrops or clearings.

<i>Euthamia caroliniana</i> Species of flowering plant

Euthamia caroliniana, known as Carolina grass-leaved goldenrod or slender goldentop is a flowering plant in the genus Euthamia, a member of the family Asteraceae. It is listed as Vulnerable due to habitat loss and disturbance within its range.

<i>Euthamia leptocephala</i> Species of flowering plant

Euthamia leptocephala, the bushy goldentop or Mississippi Valley goldentop, is a North American species of plants in the family Asteraceae. It is native to the south-central United States, in the lower Mississippi Valley and the Coastal Plain of the Gulf of Mexico, from Texas to west-central Georgia and north as far as southern Illinois.

<i>Symphyotrichum firmum</i> Species of flowering plant in the family Asteraceae native to North America

Symphyotrichum firmum, commonly known as shining aster, shiny-leaved aster, smooth swamp aster, and glossy-leaved aster, is a species of flowering plant in the daisy family Asteraceae native to Canada and the United States.

References

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