Pterocaulon pycnostachyum

Last updated

Pterocaulon pycnostachyum
Pterocaulon pycnostachyum mosbo6.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Pterocaulon
Species:
P. pycnostachyum
Binomial name
Pterocaulon pycnostachyum
(Michx.) Elliott
Synonyms [1] [2]
  • Chlaenobolus pycnostachyum(Michx.) Cass.
  • Chlaenobolus spicatusCass.
  • Conyza pycnostachyaMichx.
  • Gnaphalium undulatumWalter
  • Pterocaulon undulatumC. Mohr

Pterocaulon pycnostachyum, with the common names dense-spike blackroot, [3] fox-tail blackroot or coastal blackroot, is a plant species native to Alabama, Mississippi, North Carolina, Florida, Georgia, and South Carolina. It can be found in pinelands, ditches, depressions, and fields. [4] [5]

Pterocaulon pycnostachyum is a perennial herb up to 80 cm (31 inches) tall. Stems and the underside of leaves are covered with a thick, white layer of woolly hairs. Flower heads are crowded into a densely packed spike at the tips of the branches. Each head has as many as 50 small yellowish flowers. The plant is monoecious, meaning that some of the flowers have male stamens, while female pistils are in separate flowers in the same head. [4] [6] [7] [8] [9]

Related Research Articles

<i>Echinacea angustifolia</i> Species of flowering plant

Echinacea angustifolia, the narrow-leaved purple coneflower or blacksamson echinacea, is a species of flowering plant in the family Asteraceae. It is native to North America, where it is widespread across much of the Great Plains of central Canada and the central United States, with additional populations in surrounding regions.

<i>Ribes alpinum</i> Species of shrub

Ribes alpinum, known as mountain currant or alpine currant, is a small deciduous, dioecious shrub native to central and northern Europe from Finland and Norway south to the Alps and Pyrenees and Caucasus, Georgia; in the south of its range, it is confined to high altitudes. It is scarce in western Europe, in Britain being confined to a small number of sites in northern England and Wales.

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

Marshallia is a genus of plants in the tribe Helenieae within the family Asteraceae. Marshallia is native to the southeastern and south-central United States. A common name applied to most species in the genus is Barbara's buttons.

<i>Chrysogonum virginianum</i> Species of flowering plant

Chrysogonum virginianum, the golden-knee, green and gold, or goldenstar, is a North American species of plants in the family Asteraceae. It is native to the eastern United States from New York State and Rhode Island south to Louisiana and the Florida Panhandle.

<i>Triglochin maritima</i> Species of flowering plant in the arrowgrass family Juncaginaceae

Triglochin maritima is a species of flowering plant in the arrowgrass family Juncaginaceae. It is found in brackish marshes, freshwater marshes, wet sandy beaches, fens, damp grassland and bogs. It has a circumboreal distribution, occurring throughout the northern Northern Hemisphere. In the British Isles it is common on the coast, but very rare inland.

<i>Eurybia hemispherica</i> Species of flowering plant

Eurybia hemispherica, commonly known as the southern prairie aster, is an herbaceous plant in the composite family (Asteraceae). It is native to the south-central United States, primarily the lower Mississippi Valley and southeastern Great Plains, from Kansas south to Texas and east to Kentucky, Tennessee, and the Florida Panhandle. Its natural habitat is typically in upland prairies or dry savannas. It is less commonly found in open moist areas, in sandy-loamy soil.

<i>Platanthera blephariglottis</i> Species of plant

Platanthera blephariglottis, commonly known as the white fringed orchid or white-fringed orchis, is a species of orchid of the genus Platanthera. It is considered to be an endangered species in Connecticut and Ohio, a threatened species in Florida, Maryland and Rhode Island, exploitably vulnerable in New York, and susceptible to be threatened in Québec.

<i>Pycnanthemum tenuifolium</i> Species of flowering plant

Pycnanthemum tenuifolium, the narrowleaf mountainmint, slender mountainmint, common horsemint or Virginia thyme, is a perennial herbaceous plant in the mint family, Lamiaceae. It is native to central and eastern North America.

<i>Potamogeton natans</i> Species of aquatic plant

Potamogeton natans, commonly known as broad-leaved pondweed, floating pondweed, or floating-leaf pondweed, is an aquatic species in the genus Potamogeton native to quiet or slow-flowing freshwater habitats throughout the Holarctic Kingdom.

Liatris bracteata, commonly known as the bracted blazing star, or South Texas gayfeather, is a species of flowering plant in the family Asteraceae. It is native to Texas in the United States, where it is found in coastal prairies, roadsides, and along railroads with clay or sandy loam soils. This species is of conservation concern in its native range due to habitat loss.

<i>Liatris chapmanii</i> Species of flowering plant

Liatris chapmanii, also known as Chapman's blazing star or Chapman's gayfeather, is a plant species in the family Asteraceae and genus Liatris. It is native to Alabama, Florida and Georgia in the United States, where it is found in habitats such as dunes, beach strands, sand ridges, fields and roadsides, it also grows in longleaf pine savannas and other scrub habitats.

Liatris cokeri, also known as Coker's gayfeather and sandhills blazing star, is a plant species in the family Asteraceae and genus Liatris. It is native to North and South Carolina in the United States, where it is found in habitats such as sand ridges and sandy fields to roadsides; it is also found in turkey-oak and longleaf pine-oak plant communities. It blooms in late summer with purple flower heads.

<i>Pterocaulon sphacelatum</i> Species of plant

Pterocaulon sphacelatum, commonly known as apple bush or fruit-salad plant, is a species of flowering plant in the family Asteraceae. It is an upright shrub with mostly pink to purple flowers and is endemic to Australia.

<i>Triglochin palustris</i> Species of flowering plant

Triglochin palustris or marsh arrowgrass is a species of flowering plant in the arrowgrass family Juncaginaceae. It is found in damp grassland usually on calcareous soils, fens and meadows. The species epithet palustris is Latin for "of the marsh" and indicates its common habitat. It has a circumboreal distribution, occurring throughout northern parts of the Northern Hemisphere. It can be found locally in the British Isles especially the north.

<i>Symphyotrichum georgianum</i> Species of flowering plant in the family Asteraceae native to the southeastern United States

Symphyotrichum georgianum is a rare species of flowering plant in the Asteraceae, the aster family. Its common name is Georgia aster. It is native to the southeastern United States where it is known from Alabama, Florida, Georgia, North Carolina, and South Carolina. As of 2013, it may be extirpated from the state of Florida.

<i>Pterocaulon virgatum</i> Species of plant

Pterocaulon virgatum, common name wand blackroot, is a plant species widespread in Latin America and in the West Indies. In the contiguous United States, it has been reported only from Texas and Louisiana. It grows in marshy areas, ditches, sandy loam, etc.

<i>Facelis retusa</i> Species of flowering plant

Facelis retusa, the annual trampweed, is a South American species of flowering plant in the family Asteraceae. It is native Brazil, Bolivia, Paraguay, Uruguay, northern Argentina, Chile; naturalized in parts of Africa, Australia, and North America including the southeastern and south-central United States, and considered as a noxious weed in some of those places.

<i>Gamochaeta pensylvanica</i> Species of flowering plant

Gamochaeta pensylvanica, the Pennsylvania cudweed or Pennsylvania everlasting, is a widespread species of flowering plant in the family Asteraceae. It is native to South America and introduced into Eurasia, Africa, Australia, and North America. The pensylvanica epithet is a misnomer, as the plant is not native to Pennsylvania and only marginally naturalized there.

<i>Hymenopappus scabiosaeus</i> Species of flowering plant

Hymenopappus scabiosaeus, the Carolina woollywhite, is a North American species of flowering plant in the daisy family. It grows in the central and southeastern United States, primarily on the Great Plains an on the Coastal Plain of the Southeast. There are also isolated populations in Illinois and Indiana as well as in the state of Coahuila in northern Mexico.

<i>Hyoscyamus albus</i> Species of flowering plant

Hyoscyamus albus, the white henbane or yellow henbane, is a plant in the family of Solanaceae. It is native to Southern Europe, North Africa, West Asia and Macaronesia.

References

  1. Tropicos
  2. The Plant List
  3. USDA, NRCS (n.d.). "Pterocaulon pycnostachyum". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 15 October 2015.
  4. 1 2 Flora of North America v 19 p 476.
  5. Discover Life
  6. Cabrera, A. L. and A. M. Ragonese. 1978. Revisión del género Pterocaulon (Compositae). Darwiniana 21: 185–257.
  7. Elliott, Stephen. Sketch of the Botany of South-Carolina and Georgia 2(4): 324. 1824.
  8. Michaux, André. Flora Boreali-Americana 2: 126. 1803.
  9. Southeastern Flora