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Feverfew is native to Eurasia, specifically the Balkan Peninsula, Anatolia, and the Caucasus, but cultivation has spread it around the world and the rest of Europe, North America, and Chile. [2] [6] A perennial herb, it should be planted in full sun, 38 to 46 cm (15–18 in) apart, and cut back to the ground in the autumn.
Parthenium is a genus of North American annuals, biennials, perennials, subshrubs, and shrubs in the tribe Heliantheae within the family Asteraceae and subfamily Asteroideae. [4] [2] [3] [5] The name Parthenium is an evolution of the Ancient Greek name παρθένιον (parthenion), which referred to Tanacetum parthenium.
Other familiar species include costmary (T. balsamita) and feverfew (T. parthenium). Tansies are mainly perennial herbs, but some are annuals and subshrubs. Some are a few centimeters tall and some reach 1.5 metres (4 ft 11 in). They vary in form, with one or more branching stems growing erect or prostrate, usually from rhizomes. They are hairy ...
Discover the pros, cons, and key differences between annual vs. perennial flowers and learn which to choose to make your garden vibrant in 2024.
Common names include Santa-Maria, [2] Santa Maria feverfew, [3] whitetop weed, [4] and famine weed. [5] In India, it is locally known as carrot grass, congress grass [6] or gajar ghas or dhanura. [7] It is a common invasive species [8] in India, [9] Australia, and parts of Africa. [5] Pollen grains of Parthenium hysterophorus
This plant is a perennial herb growing up to 1 metre (3.3 ft) high. [3] The glandular leaves are oval to lance-shaped and variable in size. They have serrated, toothed, or lobed edges. Some authorities recognize two varieties based on leaf shape: [4] var. integrifolium [5] and var. mabryanum.
Parthenium alpinum is a species of flowering plant in the aster family known by the common names alpine feverfew and Wyoming feverfew. It is native to Wyoming, Colorado, and New Mexico in the United States. [1] This is a small, mat-forming, long-lived perennial herb with gray-green, hairy leaves and solitary flower heads.
Perennials cut down on the work of planting (and some provide great ground cover) while annuals adds long-lasting beauty and longer bloom times. Having a variety of plants also provides habitat ...