Hartwrightia | |
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Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Asterids |
Order: | Asterales |
Family: | Asteraceae |
Subfamily: | Asteroideae |
Tribe: | Eupatorieae |
Genus: | Hartwrightia A.Gray ex S.Wats. |
Species: | H. floridana |
Binomial name | |
Hartwrightia floridana | |
Hartwrightia is a genus of North American flowering plants in the tribe Eupatorieae of the family Asteraceae. [2] The genus contains a single species, Hartwrightia floridana, native to the US states of Georgia and Florida. [3] [4] The species is sometimes referred to by the common name Florida hartwrightia. [5]
Although superficially similar to some species in Eupatorium , it can be distinguished by having a basal rosette of leaves, flowers of a different shape, and the fruit which lacks the parachute-like pappus found in Eupatorium . [1] The plant is about one meter tall. It flowers in the fall and the flowers are white to pink or blue. [6]
The genus is named for plant collector Samuel Hart Wright, 1825–1905. [6]
Hartwrightia is classified in the subtribe Liatrinae of the tribe Eupatorieae, along with, for example, Liatris , Carphephorus , and Garberia . [7] Molecular data, while placing Hartwrightia firmly within subtribe Liatrinae, give mixed results regarding its closest relative. The nuclear ITS/ETS regions place it firmly with Trilisa, with which it shares multiple synapomorphies but also differs at multiple sites. In contrast, it is almost an exact match in the plastid DNA sequences with Carphephorus corymbosus. These results suggest that Hartwrightia may be of hybrid origin but is transgressive from either putative parental lineage for multiple morphological characters [8]
Hartwrightia floridana is a herbaceous perennial which grows in the southeastern United States (Georgia and Florida). It is found in open areas, for example in pine flatlands, [9] but is not tolerant of grazing or solid forest cover. It seems to do better in the presence of regular fires. It is considered threatened and the biggest threat is loss of habitat. It requires wet soil, and is sensitive to hydrological changes. [1] The seed is a sticky achene without the large pappus which would suggest wind dispersal, so it is presumed to be transmitted by animals. [1]
Liatris, commonly known as gayfeather and blazing star is a genus of flowering plants in the tribe Eupatorieae within the family Asteraceae native to North America. Some species are used as ornamental plants, sometimes in flower bouquets. They are perennials, surviving the winter and resprouting underground corms.
The Heliantheae are the third-largest tribe in the sunflower family (Asteraceae). With some 190 genera and nearly 2500 recognized species, only the tribes Senecioneae and Astereae are larger. The name is derived from the genus Helianthus, which is Greek for sun flower. Most genera and species are found in North America and South America. A few genera are pantropical.
Eupatorium is a genus of flowering plants in the family Asteraceae, containing from 36 to 60 species depending on the classification system. Most are herbaceous perennials growing to 0.5–3 m (1.6–9.8 ft) tall. A few are shrubs. The genus is native to temperate regions of the Northern Hemisphere. Most are commonly called bonesets, thoroughworts or snakeroots in North America. The genus is named for Mithridates Eupator, king of Pontus.
Eupatorieae is a tribe of over 2000 species of plants in the family Asteraceae. Most of the species are native to tropical, subtropical, and warm temperate areas of the Americas, but some are found elsewhere. Well-known members are Stevia rebaudiana, a number of medicinal plants (Eupatorium), and a variety of late summer to autumn blooming garden flowers, including Ageratum (flossflower), Conoclinium (mistflower), and Liatris.
Eupatorium capillifolium, or dog fennel, is a North American perennial herbaceous plant in the family Asteraceae, native to the eastern and south-central United States. It is generally between 50 cm and 2 meters tall with several stems that fork from a substantial base. The stems and base are covered in leaves so dissected that they resemble branching green threads coming out of the stem in fractal patterns. When crushed, the leaves have a sour odor similar to dill pickles. The flowers have a subtle floral odor.
Brickellia is a North American genus of about 100 to 110 species of plants in the family Asteraceae, known commonly as brickellbushes. They are found in Canada, the United States, Mexico, and Central America. Many species are native to the American southwest, especially Texas. Brickellia is among the more basal lineages of the Eupatorieae and should not be assigned to a subtribe pending further research.
Pappobolus is a genus of flowering plant in the family Asteraceae native to the Andes Mountains of Colombia, Ecuador, and Peru.
Eutrochium is a North American genus of herbaceous flowering plants in the family Asteraceae. They are commonly referred to as Joe-Pye weeds. They are native to the United States and Canada, and have non-dissected foliage and pigmented flowers. The genus includes all the purple-flowering North American species of the genus Eupatorium as traditionally defined, and most are grown as ornamental plants, particularly in Europe and North America.
Eupatorium altissimum, with the common names tall thoroughwort and tall boneset, is a perennial herbaceous plant in the Asteraceae family with a native range including much of the eastern and central United States and Canada. It is a tall plant found in open woods, prairies, fields, and waste areas, with white flowers that bloom in the late summer and fall.
Heliomeris is a genus of flowering plants in the family Asteraceae, known generally as false goldeneyes.
Chromolaena is a genus of about 165 species of perennials and shrubs in the family Asteraceae. The name is derived from the Greek words χρῶμα (khrôma), meaning "color", and χλαῑνα (khlaīna) or λαῑνα (laīna) meaning "cloak". It refers to the colored phyllaries of some species. Members of the genus are native to the Americas, from the southern United States to South America. One species, Chromolaena odorata, has been introduced to many parts of the world where it is considered a weed.
Conoclinium, the mistflowers, is a genus of four species of herbaceous perennial flowering plants, native to North America. They are 0.5 to 2 metres tall, and have blue to purple or violet flowers.
Eupatorium serotinum, also known as late boneset or late thoroughwort, is a fall-blooming, perennial, herbaceous plant native to North America.
Garberia is a monotypic genus of flowering plants in the family Asteraceae, containing the single species Garberia heterophylla. It is endemic to Florida in the United States, where it is distributed in the northern and central counties. The plant is known commonly as garberia and Garber's scrub starts.
Carphephorus is a genus of North American plants in the family Asteraceae. They are native to the southeastern United States from Louisiana to Virginia. Plants of this genus are known commonly as chaffheads.
Stomatanthes is a genus of African and South American plants in the tribe Eupatorieae within the family Asteraceae.
Asanthus is a small genus of flowering plants in the family Asteraceae, found only in northern Mexico and the southwestern United States.
Brickelliastrum is a North American genus of flowering plants in the tribe Eupatorieae within the family Asteraceae. Its species are native to Arizona, New Mexico, and Texas in the United States and to northern Mexico.
Steviopsis is a genus of Mexican plants in the tribe Eupatorieae within the family Asteraceae.
Iostephane is a genus of Mexican flowering plants in the family Asteraceae. They were first published in G.Bentham & J.D.Hooker, Genera Plantarum Vol.2 on page 368 in 1873.