Heliopsis helianthoides | |
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Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Asterids |
Order: | Asterales |
Family: | Asteraceae |
Genus: | Heliopsis |
Species: | H. helianthoides |
Binomial name | |
Heliopsis helianthoides (L.) Sweet | |
Synonyms [1] | |
Heliopsis helianthoides is a species of flowering plant in the family Asteraceae, known by the common names rough oxeye, [2] smooth oxeye [3] and false sunflower. [4] It is native to eastern and central North America from Saskatchewan east to Newfoundland and south as far as Texas, New Mexico, and Georgia. [5] [6] [7]
Heliopsis helianthoides is a rhizomatous herbaceous perennial growing 40–150 cm (16–59 in) tall. The toothed leaf blades are oval to triangular or lance-shaped and may be smooth or hairy or rough in texture. The flowers are produced from midsummer to early autumn (fall). [8] The inflorescence contains one to many composite flowerheads. Each head contains yellow ray florets which are generally 2–4 cm (3⁄4–1+1⁄2 in) long. The rays are fertile, having a small forked pistil at the base; this distinguishes them from true sunflowers. [9] At the center are many yellow to brownish disc florets. The fruit is an achene about 5 mm (0.20 in) long. [5]
In the wild, H. helianthoides may be found in wooded areas and tallgrass prairie, and sometimes along roadsides. [4]
It is a popular garden plant for moist, fertile soil in full sun. Plants grow stiff and tall, so may require staking. Several cultivars are available with flowers of varying colors and shades. These include 'Summer Sun', 'Golden Plume', and 'Prairie Sunset'. [6] The following cultivars of H. helianthoides var. scabra ("rough") [10] have gained the Royal Horticultural Society's Award of Garden Merit: [11]
The Botanical Latin species name helianthoides means “resembling sunflowers”. [18]
Deutzia is a genus of about 60 species of flowering plants in the family Hydrangeaceae, native to eastern and central Asia, and Central America and also Europe. By far the highest species diversity is in China, where 50 species occur.
Rudbeckia hirta, commonly called black-eyed Susan, is a North American flowering plant in the family Asteraceae, native to Eastern and Central North America and naturalized in the Western part of the continent as well as in China. It has now been found in all 10 Canadian Provinces and all 48 of the states in the contiguous United States.
Juniperus squamata, the flaky juniper, or Himalayan juniper is a species of coniferous shrub in the cypress family Cupressaceae, native to the Himalayas and China.
Geranium sanguineum, common names bloody crane's-bill or bloody geranium, is a species of hardy flowering herbaceous perennial plant in the cranesbill family Geraniaceae. It is also the county flower of Northumberland.
Rudbeckia fulgida, the orange coneflower or perennial coneflower, is a species of flowering plant in the family Asteraceae, native to eastern North America.
Heliopsis is a genus of herbaceous flowering plants in the family Asteraceae, native to dry prairies in North and South America. The sunflower-like composite flowerheads are usually yellow, up to 8 cm (3 in) in diameter, and are borne in summer. Species are commonly called ox-eye or oxeye.
Symphyotrichum ericoides, known as white heath aster, frost aster, or heath aster, is a species of flowering plant in the family Asteraceae native to much of central and eastern North America. It has been introduced to parts of Europe and western Asia.
Santolina chamaecyparissus, known as cotton lavender or lavender-cotton, is a species of flowering plant in the family Asteraceae, native to the western and central Mediterranean.
Hamamelis mollis, also known as Chinese witch hazel, is a species of flowering plant in the witch hazel family Hamamelidaceae, native to central and eastern China, in Anhui, Guangxi, Hubei, Hunan, Jiangxi, Sichuan, and Zhejiang.
Symphyotrichum lateriflorum is a species of flowering plant in the aster family (Asteraceae). Commonly known as calico aster, starved aster, and white woodland aster, it is native to eastern and central North America. It is a perennial and herbaceous plant that may reach heights up to 120 centimeters and widths up to 30 centimeters.
Ornithogalum nutans, known as drooping star-of-Bethlehem, is a species of flowering plant in the family Asparagaceae, native to Europe and South West Asia. It is a bulbous perennial growing to 20–60 cm (8–24 in) tall by 5 cm (2 in) wide, with strap-shaped leaves and green striped, pendent grey-white flowers in spring. It is cultivated, and has naturalized, outside its native range, for example in North America. It has become extremely invasive along the Chesapeake and Ohio Canal in Maryland. At least in North America, it is not as common as Ornithogalum umbellatum.
Symphyotrichum pilosum is a perennial, herbaceous, flowering plant in the Asteraceae family native to central and eastern North America. It is commonly called hairy white oldfield aster, frost aster, white heath aster, heath aster, hairy aster, common old field aster, old field aster, or steelweed. It may reach 20 to 120 centimeters tall, and its flowers have white ray florets and yellow disk florets.
Geranium subcaulescens is a species of flowering plant in the geranium family Geraniaceae, that is native to Italy, Turkey and the Balkans. A low, mounded evergreen perennial, it typically grows to 8 in (20 cm) tall by more than 11 in (28 cm) broad, with grey-green orbicular and lobed leaves, and masses of bright magenta pink flowers with black centres in summer.
Sedum spathulifolium is a species of flowering plant in the family Crassulaceae known by the common names broadleaf stonecrop, yellow stonecrop, and spoon-leaved stonecrop. An evergreen perennial, it is native to western North America from British Columbia to southern California, where it can be found often in shade in many types of rocky habitat in coastal and inland hills and mountains.
Lespedeza thunbergii is a species of flowering plant in the legume family known by the common names Thunberg's bushclover, Thunberg's lespedeza, and shrub lespedeza. It is native to the eastern Himalayas, China, Korea, and Japan.
Veronica austriaca, the broadleaf speedwell, large speedwell, Austrian speedwell, or saw-leaved speedwell, is a species of flowering plant in the plantain family Plantaginaceae, native to northern temperate Europe. Growing to 90 cm (35 in) tall by 60 cm (24 in) broad, it is a mound-forming herbaceous perennial, with deeply toothed leaves and erect spikes of bright blue flowers throughout summer.
Disanthus cercidifolius is a species of flowering plant in the family Hamamelidaceae. It is native to woodland habitats in China and Japan.
Pteris cretica, the Cretan brake, ribbon fern, or Cretan brake fern, is a species of evergreen fern in the family Pteridaceae, native to Europe, Asia and Africa.
Heliopsis gracilis is a North American species of flowering plant in the family Asteraceae, known by the common names smooth oxeye and pinewoods oxeye. It is native to the southeastern and south-central United States from eastern Texas to South Carolina.
Heliopsis parvifolia is a North American species of flowering plant in the family Asteraceae, known by the common name mountain oxeye.