Hartwrightia

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Hartwrightia
Status TNC G2.svg
Imperiled  (NatureServe) [1]
Scientific classification OOjs UI icon edit-ltr.svg
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]

Contents

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]

Taxonomy

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]

Ecology

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]

Related Research Articles

<i>Liatris</i> Genus of flowering plants

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.

<span class="mw-page-title-main">Heliantheae</span> Tribe of sunflower plants

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.

<i>Eupatorium</i> Genus of plants

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.

<span class="mw-page-title-main">Eupatorieae</span> Tribe of plants

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.

<i>Eupatorium capillifolium</i> Species of flowering plant

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.

<i>Brickellia</i> Genus of flowering plants

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.

<i>Eutrochium</i> Genus of flowering plants

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.

<i>Eupatorium altissimum</i> Species of flowering plant

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.

<i>Heliomeris</i> Genus of plants

Heliomeris is a genus of flowering plants in the family Asteraceae, known generally as false goldeneyes.

<i>Chromolaena</i> Genus of flowering plants

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.

<i>Conoclinium</i> Genus of flowering plants

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.

<i>Eupatorium serotinum</i> Species of flowering plant

Eupatorium serotinum, also known as late boneset or late thoroughwort, is a fall-blooming, perennial, herbaceous plant native to North America.

<i>Garberia</i> Genus of flowering plants

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.

<i>Carphephorus</i> Genus of flowering plants

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.

<i>Stomatanthes</i> Genus of plants

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.

<i>Steviopsis</i> Genus of plants

Steviopsis is a genus of Mexican plants in the tribe Eupatorieae within the family Asteraceae.

<i>Iostephane</i> Genus of flowering plants

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.

References

  1. 1 2 3 4 "Hartwrightia floridana - Gray ex S. Wats". NatureServe.[ permanent dead link ]
  2. D.J.N.Hind & H.E.Robinson. 2007. Tribe Eupatorieae In: The Families and Genera of Vascular Plants vol.VIII. (Joachim W.Kadereit & Charles Jeffrey, volume editors. Klaus Kubitzky, general editor). Springer-Verlag. Berlin, Heidelberg.
  3. Holzinger, J. M. 1893. The systematic position of Hartwrightia floridana. Bulletin of the Torrey Botanical Club 20: 287–288.
  4. Biota of North America Program 2013 county distribution map
  5. USDA, NRCS (n.d.). "Hartwrightia floridana". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 10 May 2015.
  6. 1 2 "Hartwrightia A. Gray ex S. Watson". Flora of North America .
  7. Schilling, Edward E.; Patricia B. Cox (2001). "Systematic analysis of Liatrinae (Asteraceae)". Botany 2001 Abstracts. Botanical Society of America. Archived from the original on 2001-04-27.
  8. Schilling, E. E. 2011. Hybrid genera in Liatrinae (Asteraceae: Eupatorieae). Molecular Phylogenetics and Evolution 59: 158-167.
  9. Oliveira, L. O.; Huck, R. B.; Gitzendanner, M. A.; Judd, W. S.; Soltis, D. E.; Soltis, P. S. (2007). "Molecular phylogeny, biogeography, and systematics of Dicerandra (Lamiaceae), a genus endemic to the southeastern United States" (free full text). American Journal of Botany. 94 (6): 1017–27. doi: 10.3732/ajb.94.6.1017 . PMID   21636471.