Eryngium maritimum, the sea holly or sea eryngo, or sea eryngium, is a perennial species of flowering plant in the family Apiaceae and native to most European coastlines. It resembles a plume thistle in appearance on account of its burr-shaped flower. Despite its common name, it is not taxonomically related to true holly, but is an umbellifer.
Eryngium alpinum, the alpine sea holly, alpine eryngo or queen of the Alps, is a herbaceous perennial plant in the family Apiaceae.
Eryngium yuccifolium, known as rattlesnake master, button eryngo, and button snake-root, is a perennial herb of the parsley family native to the tallgrass prairies of central and eastern North America. It grows from Minnesota east to Ohio and south to Texas and Florida, including a few spots in Connecticut, New Jersey, Maryland, and Delaware.
Eryngium amethystinum, the amethyst eryngo, Italian eryngo or amethyst sea holly, is a clump-forming, perennial, tap-rooted herb. Its stem is 30 to 50 cm long and is light blue to purple in colour. It has a basal circle of obovate, pinnate, spiny, leathery, mid-green leaves. It flowers in mid to late summer with cylindrical umbels, 2–3 cm long atop silvery blue bracts and branching stems. The plant is native to the eastern Mediterranean and prefers dry places and soils that are rich in calcium.
Eryngium campestre, known as field eryngo, or Watling Street thistle, is a species of Eryngium, which is used medicinally. A member of the family Apiaceae, eryngo is a hairless, thorny perennial plant. The leaves are tough and stiff, whitish-green. The basal leaves are long-stalked, pinnate and spiny. The leaves of this plant are mined by the gall fly, Euleia heraclei.
Eryngium giganteum, with the common name Miss Willmott's ghost, is a species of flowering plant in the family Apiaceae.
Eryngium aristulatum, known by the common names California eryngo and Jepson's button celery, is a species of flowering plant in the family Apiaceae.
Eryngium armatum, known by the common names coastal eryngo and prickly coyote thistle, is a species of flowering plant in the family Apiaceae.
Eryngium castrense is a species of flowering plant in the family Apiaceae known by the common name Great Valley eryngo, or Great Valley button celery. This plant is endemic to California, where it grows in wet areas such as vernal pools and ponds in the central part of the state. This is a heavily branched, spiny perennial herb reaching maximum heights of around half a meter. It produces light green to grayish green hairless stems with occasional lobed, oval-shaped leaves. At the tops of the stems are flower heads one to one and a half centimeters wide and rounded or egg-shaped. At the base of each head is an array of 7 to 9 spiny, pointed bracts up to three centimeters long, and sometimes a few smaller bractlets above. The rounded flower head contains many small white to light purple flowers.
Eryngium constancei is a species of flowering plant in the family Apiaceae known by the common name Loch Lomond button celery, or Loch Lomond coyote thistle. It is endemic to California, where it is known from only three occurrences north of the San Francisco Bay Area. One of the populations is at the Loch Lomond Vernal Pool Ecological Reserve at Loch Lomond in Lake County. The plant appears mainly in vernal pools. It is endangered on the state and federal levels.
Eryngium racemosum is a rare species of flowering plant in the family Apiaceae known by the common name delta eryngo, or delta button celery.
Eryngium spinosepalum, known by the common names spinysepal eryngo and spiny-sepaled button celery, is an uncommon species of flowering plant in the family Apiaceae.
Eryngium foetidum is a tropical perennial herb in the family Apiaceae. Common names include culantro, recao, chadon beni, Mexican coriander, bandhaniya, long coriander, Burmese coriander, sawtooth coriander, and ngò gai. It is native to Mexico, the Caribbean, and Central and South America, but is cultivated worldwide, mostly in the tropics as a perennial, but sometimes in temperate climates as an annual.
Eryngium cuneifolium is a rare species of flowering plant in the carrot family known by the common names wedgeleaf eryngo, wedge-leaved button-snakeroot, and simply snakeroot. It is endemic to the state of Florida in the United States where it is known only from Highlands County. It is one of many rare species that can be found only on the Lake Wales Ridge, an area of high endemism. It was federally listed as an endangered species of the United States in 1987.
Eryngium planum, the blue eryngo or flat sea holly, is a species of flowering plant in the family Apiaceae, native to the area that includes central and southeastern Europe and central Asia. It is an herbaceous perennial thistle growing to 50 cm (20 in) with branched silvery-blue stems, and numerous small blue conical flowerheads surrounded by spiky bracts in summer.
Eryngium aquaticum is a species of flowering plant in the family Apiaceae known by the common name rattlesnakemaster, marsh rattlesnake master, corn-snakeroot, bitter snakeroot, and marsh eryngo. This plant is native to eastern North America.
Eryngium bourgatii, the Mediterranean sea holly, is a species of flowering plant in the family Apiaceae native to Morocco, Lebanon, Turkey, France, and Spain. It is a herbaceous perennial growing to 15–45 cm (6–18 in) tall. The spherical blue flowerheads have spiny bracts.
Eryngium integrifolium, also known as blueflower eryngo, savanna eryngo, or blue-flowered coyote thistle, is a flowering plant in the family Apiaceae. It is native to the Southeastern United States where it is found it meadows, savannas, and flatwoods often in wet, nutrient-poor conditions. It produces dense heads of blue flowers in late summer through fall.
Eryngium creticum, or the field eryngo, is a species of flowering plant in the family Apiaceae native to Greece, Israel, Jordan, Lebanon, Palestine, and Syria. It is known in Lebanon and Palestine as قرصعنة and in Israel as חרחבינה מכחילה.
Eryngium baldwinii is a biennial aromatic herb in the Eryngium genus. Its common name is Baldwin's eryngo. It can grow to become a spread out groundcover with hazy appearing light blue flowers. It is named for William Baldwin.
