Even though they are native to North America, the most common species, Echinacea purpurea (purple coneflower) and Rudbeckia fulgida (black-eyed susan), are highly well-liked in perennial borders, wildflower meadows, English cottage style gardens, and even contemporary design gardens.
Are black-eyed Susan and echinacea the same thing?
The two plants, Echinacea (10 species) and Rudbeckia (25 species), are closely related despite being members of separate genera. They both belong to the Asteraceae family and are actually from the same tribe. Both genera’ species are exclusively herbaceous (no species are woody), perennial, and typically highly cold-hardy. Being wholly of North American origin, they are also from the same region. Both produce upright flower stalks of various heights and develop rosettes of basal leaves. With a composite flower head that resembles a daisy and a cone-shaped core, the inflorescences are strikingly similar. Both are frequently referred to as coneflowers due to their central cone.
The cone is made up of fertile florets, and it is encircled by colorful “petals” (which are actually ray flowers). The majority of the blooming for the two genera occurs from mid- to late summer through autumn.
They are simple to grow and can be used as ornamentals in flowerbeds and wildflower meadows by gardeners. The majority thrive in sunny locations and well-drained soils. They draw pollinators, particularly butterflies and bees. Neither is particularly vulnerable to deer or rabbit predation. Both also make excellent cut flowers.
For a very long time, the color of the ray flowers served as a reliable way to distinguish echinaceas from rudbeckias. In home gardens, echinaceas typically featured pink or white flowers, whereas rudbeckias typically had yellow blooms or yellow that was covered in orange, red, or brown. Wild yellow echinacea (E. paradoxa) has always existed, although not many people have ever grown it.
Then, in the early 2000s, new hybrid echinaceas first appeared on the market in a variety of hues, including red, orange, yellow, white, pink, green, and purple. The “pink/white compared to yellow differentiation” was abandoned at that point.
What about cone color, though? Many rudbeckia species have dark cones that are brown or almost black, earning them the names black-eyed or brown-eyed Susans. The majority of echinacea cones range from orange to green to mahogany brown, frequently shifting as the blooms ripen. Echinaceas never produce black cones or extremely dark ones.
It turns out that there are rudbeckias with green cones as well, although if so, they are typically a vivid green.
It’s true that neither of the double variants have any cones at all; however, the double varieties initially have a cone, which gradually gets covered in ray flowers, providing a window of opportunity for identification.
Touch the cones up close. The true giveaway is this. Echinacea, which derives its name from the Greek word echinos, which means “hedgehog,” has prickly cones that are coated in spiky appendages known as paleae. But Rudbeckia cones never have spiky edges.
Comparing cone color and, for even more assurance, texture is the greatest approach to differentiate between the two.
Do black-eyed Susans fall under the coneflower category?
Sometimes both black-eyed Susans (Rudbeckia fulgida) and purple coneflowers (Echincea purpurea) are referred to as coneflowers, but the two are separate species. Both are wildflowers that are indigenous to the woodlands, prairies, and meadows of eastern North America. Perennials are plants that grow year after year. The complimentary purple and yellow petals produced by these flowers when they are planted together in late summer produce a yard full of butterflies and bees.
Is yellow coneflower the same as black-eyed Susan?
Like all other members of its genus, the yellow coneflower, sometimes known as the black-eyed Susan, is a native American wildflower. Coneflowers have a genus that bears the names of Olaf Rudbeck and his son, who were both botany professors.
Cone flowers — are they the same as echinacea?
One of the three distinct genera referred to as coneflowers is echinacea. Echinacea angustifolia and Echinacea purpurea are two well-known members of the Echinacea genus. Purple coneflowers, or (more ambiguously) plain coneflowers, is the common name for members of the Echinacea species. The only coneflower genus that most people are familiar with by name is the Echinacea one because of its reputation as a medicinal plant.
Can black-eyed Susans be used as medicine?
Recent research suggests that black-eyed Susan root extracts may boost the immune system more effectively than one of the most popular medical herbs, echinacea. It makes reasonable that these two plants would share this one since they are both members of the same family and possess many of the same traits.
Another investigation revealed that black-eyed Susan had antibacterial properties against the tuberculosis-causing bacterium. Elecampane is a strong cough medicine and respiratory herb, and it contains the same components as that herb. This demonstrates the effectiveness and power of this plant, even though tuberculosis isn’t as prevalent as it was decades before.
That implies that black-eyed Susans are also used to cure some cold symptoms. This shouldn’t be shocking as we are aware that Native American cultures have long utilized this flower to heal colds. Similar to how Echinacea is utilized, it is highly appreciated for its ability to prevent colds and the flu.
Folk Uses of Black-Eyed Susan
Black-eyed Susans have a variety of medical purposes that are supported by current peer-reviewed studies, as well as a variety of folk uses. Although current medicine hasn’t (yet) researched these, I’m including them mainly out of historical interest.
Science has supported its traditional uses as an immunity booster and antimicrobial, so it’s very feasible that these ancient uses are still true today. However, without studies, it’s difficult to know for sure.
Black-eyed Susans were employed by Native American tribes to treat a wide variety of illnesses. Although the plant and roots offer beneficial qualities, you should avoid the seeds.
One of the most well-known uses is to make an infusion from the roots to cure parasitic worms. The Ojibwa tribe, often known as the Chippewa, developed this ancient herbal treatment. This flower can be utilized in additional ways.
Black-eyed Susans help to enhance the flow of urine since they have diuretic effects. The entire plant is useful for treating ulcers and physical swelling, and the stem is good for treating those with high blood pressure.
The roots from a black-eyed Susan plant are adaptable and can be used to cure a variety of conditions in addition to parasitic worms. The liquid from the roots can be used as a natural earache remedy. Prepare a tea or root infusion, then soak a towel in it. Apply it next to minor scrapes, wounds, sores, or swelling.
Potential Black-Eyed Susan Medicinal Benefits
- increases immune system vigor
- combats the flu and colds
- treats ulcers, diuresis, and excessive blood pressure
- cures ear pain
- snakebites are treated
While black-eyed Susans are lovely flowers, most people tend to view them as nothing more than ornamental plants. I hope I’ve changed your perception of this widespread perennial.
What distinguishes coneflower from rudbeckia?
Great coneflower, for instance, (Rudbeckia maxima), does not resemble a black-eyed susan at all. It features huge, waxy, blue-gray leaves, tall, greenish cone-shaped blooms, and a very tall stature. Cutleaf coneflower, also known as Rudbeckia laciniata, features tiny daisy-like flowers with green centers and lacy leaves.
What distinguishes black-eyed Susans from rudbeckia?
The Rudbeckia genus is a native wildflower that first gained popularity as a Native American pre-colonial herbal remedy before making its way into cultivated flowerbeds in the 19th century. Rudbeckia hirta, also known as the black-eyed Susan, and R. triloba, sometimes known as the brown-eyed Susan, are two of the genus’ most widely distributed species.
There is frequently confusion between these two species. Any of the frequently cultivated Rudbeckia species and their cultivars—including those that have been modified to eliminate the dark flower centers—are occasionally referred to as “brown-eyed” or “black-eyed.” However, compared to brown-eyed Susans, black-eyed Susans are bigger and have more petals. Other rudbeckia cultivars exist that are also popular garden plants.
Rudbeckia plants will bloom throughout the dog days of summer and beyond, needing little more than common garden loam and a full day of sunlight, luring pollinators and butterflies with an abundance of pollen and nectar offers. Put some rudbeckia plants in your cottage garden, let them adorn your flowerpots, or place some of the hardy flowers next to your mailbox for a cheery greeting.
Gardening Tip
The majority of Rudbeckias are perennials with a short lifespan; they may disappear after only a few years. However, because they self-seed so readily and grow so quickly, a tiny patch of these plants can be maintained virtually eternally.
What makes echinacea and helenium different from one another?
Helenium blooms resemble coneflowers (Echinacea spp.) in that their petals either face outward in the shape of rays from a central cone or may droop downward. Due to its late summer to early fall bloom period, as opposed to coneflowers’ early summer blossoms, helenium can be distinguished from them.
What distinguishes a Brown Eyed Susan from a Black Eyed Susan?
The aster family member known as the brown-eyed susan is a profuse late summer wildflower that pollinators like. Its three leafy stem portions give it the formal name Rudbeckia triloba, which is occasionally mistaken for the more popular black-eyed susan. There are a few things that separate them: Compared to black-eyed susans, brown-eyed susans bud a little later, bloom for a little while longer, grow significantly higher (up to 5 feet), and have smaller blooms. Contrarily, black-eyed susans grow in clusters with stems and flowers emerging from the middle, have several branches, and have a bushier appearance. The petals on the flowers themselves are also a little more rounded. These dependable plants frequently bloom profusely, producing a very impressive display.
These vibrant blooms are biennial and effectively reseed themselves in a variety of settings, such as vacant lots, meadows, riverbanks, and railroad tracks. They are consumed by some species, such as groundhogs, deer, and rabbits. Although they can tolerate some drought, a prolonged dry spell may cause them to droop or dry out. They go well with deep red day lilies and the cool blues of caryopteris, and they fill out huge cottage-style gardens that need a boost of late summer color. These gorgeous, bright yellow flowers bloom for several weeks, frequently far into the fall.
Coneflowers—are they Rudbeckia?
You are not alone if you are perplexed when someone points out a coneflower and it is not what you anticipated. Coneflower refers to forty different plant species across five genera. Three genera, Echinacea, Rudbeckia, and Ratibida, are relatively common and are offered as garden flowers, however you will likely never come across some of them. I’ll begin with them.
Echinacea is the one that displays when I search for “coneflower.” Echinaceas* are attractive members of the Asteraceae family, which includes sunflowers. All nine of the species are indigenous to North America. Since all but one species have reddish flowers with hues ranging from highly pink-purple to extremely light, they are sometimes known as purple coneflowers. The final species, Echinacea paradoxica, is known as yellow coneflower and has yellow blossoms (not yellow purple coneflower). It is extremely similar to other Echinacea species, with the exception of color, but I don’t have a photo of it. Except for Echinacea angustifolia, sometimes known as black samson, none of the purple echinaceas appear to have common names other than purple coneflower (smooth purple coneflower, eastern purple coneflower, etc.), however you may occasionally encounter narrow-leaf echinacea.
(*Latin doesn’t allow you to add a s to a scientific name. Because the aim of the post is that all the plants share the same typical common name, I’m going to convert scientific names into common names for this entry by eliminating the capital letter and italics and allowing a s to make a plural. Particularly for these species, the scientific names distinguish the plants in a way that the common names do not.
Plants in the Rudbeckia genus of the Asteraceae (sunflower) family are also known as coneflowers. All 23 of the Rudbeckia species are indigenous to North America. Common names for this plant include Rudbeckia fulgida (orange coneflower), R. grandiflora (tall coneflower), R. occidentalis (western coneflower), etc.
The rudbeckias go by the names black-eyed Susan and brown-eyed Susan as their own common names. However, I only discovered a small number of species with these common names. The black-eyed Susans are sweet black-eyed Susan R. subtomentosa, perennial black-eyed Susan Rudbeckia fulgida, and black-eyed Susan, or common black-eyed Susan Rudbeckia hirta. Brown-eyed Susan (R. triloba), big brown-eyed Susan (Rudbeckia maxima), and bog brown-eyed Susan are three other rudbeckias that share the common name (R. scabrifolia). Both brown-eyed Susan and black-eyed Susan are names for the widespread and well-known Rudbeckia hirta. The purple coneflowers, Echinacea, and the other 16 species of Rudbeckia both go by the common name coneflower.
The prairie coneflowers, genus Ratibida, sunflower family, Asteraceae, are the third significant group of plants referred to as coneflowers. Four of the seven Ratibida species that are native to North America grow north of Mexico. Because of how strongly the flower head shape resembles a cone, I refer to this plant as a coneflower. Except for Rudbeckia fulgida, also known as perennial black-eyed Susan, which is also known as prairie coneflower, they are usually referred to as prairie coneflowers, which sets them apart from the rest.
Native to the eastern half of North America, Ratibida pinnata is also known as pinnate prairie coneflower, grayhead coneflower, and gray-head Mexican hat. It has yellow flowers and is also known as yellow coneflower (the same as Echinacea paradoxica).
Ratibidas are also known by the common name “Mexican hat.” The USDA website refers to it as erect prairie coneflower, and neither of my photographs does it justice. It has petals that range from yellow to purplish to red, often blended on the same petal, which makes its resemblance to a floppy huge hat more apparent (link). This species’s natural habitat spans practically all of North America (link).
Coneflowers are a group of three distinct native American wildflowers that belong to the sunflower family. It helps if you use the proper pronouns when referring to purple coneflower or prairie coneflower, but this is not uncommon.
Two other genera are referred to as coneflowers. One is the clasping coneflower genus Dracopis, which has just one species: Dracopis amplexicaulis. Due to its recent separation from Rudbeckia, the name “coneflower” makes sense (about clasping coneflower).
The Proteaceae plant family’s Isopogon genus is the other. The Proteaceae are not found in North America and are only found in the Southern Hemisphere. I counted six native Australian wildflowers with the common name “coneflower,” but the majority go by the name “drumstick” or by other names that don’t include that word (Isopogon adenanthoides, spider coneflower; I. alcornis, elkhorn cornflower; I. formosus, rose coneflower; I. polycephalus, clustered coneflower; I. teretifolius nodding coneflower, and I. trilobus barrel coneflower). It is not surprising that Australians have their own coneflowers because there are many distinctions between Australian English and American English. (View Isopogon.) But be warned that Australian plants may appear when you search for “coneflower” online.
The American coneflowers are incredibly attractive and widely grown. Coneflower misunderstanding cannot be solved easily. If there is one in particular you desire, research its scientific name and request it before purchasing the “coneflower.”