Senecio crassiflorus
Encyclopedia
Senecio crassiflorus, one of the native South American Senecio
Senecio
Senecio is a genus of the daisy family that includes ragworts and groundsels. The flower heads are normally rayed, completely yellow, and the heads are borne in branched clusters...

and an herbaceous dune
Dune
In physical geography, a dune is a hill of sand built by wind. Dunes occur in different forms and sizes, formed by interaction with the wind. Most kinds of dunes are longer on the windward side where the sand is pushed up the dune and have a shorter "slip face" in the lee of the wind...

 dwelling perennial.

Description

Senecio crassiflorus is not an upright herb, the silvery to white woolly 20 centimetres (7.9 in) to 50 centimetres (19.7 in) tall plant tends to "lay down and rest" on the dunes and sandy coastal areas it inhabits.

Leaves: Shaped like spatula with roundish, long, narrow, linear bases to having a broad rounded apex and a tapering base. Mostly 4 centimetres (1.6 in) to 8 centimetres (3.1 in) long, 0.6 centimetre (0.236220472440945 in) to 2 centimetre (0.78740157480315 in) wide. The edges are smooth or toothed towards apex and both surfaces woolly.

Flowers: Broadly bell shaped, woolly flower heads appear singly or a few together, 1 centimetre (0.393700787401575 in) to 1.5 centimetre (0.590551181102362 in) in diameter.

Seeds and reproduction: Achene
Achene
An achene is a type of simple dry fruit produced by many species of flowering plants. Achenes are monocarpellate and indehiscent...

s 0.3 centimetre (0.118110236220472 in) to 0.5 centimetre (0.196850393700787 in); pappus
Pappus (flower structure)
The pappus is the modified calyx, the part of an individual disk, ray or ligule floret surrounding the base of the corolla, in flower heads of the plant family Asteraceae. The pappus may be composed of bristles , awns, scales, or may be absent. In some species, the pappus is too small to see...

 1.5 centimetre (0.590551181102362 in) long.
Reports claim S. crassiflorus does not produce viable seeds and spreads itself asexually
Asexual reproduction
Asexual reproduction is a mode of reproduction by which offspring arise from a single parent, and inherit the genes of that parent only, it is reproduction which does not involve meiosis, ploidy reduction, or fertilization. A more stringent definition is agamogenesis which is reproduction without...

 or via vegetative reproduction
Vegetative reproduction
Vegetative reproduction is a form of asexual reproduction in plants. It is a process by which new individuals arise without production of seeds or spores...

.

Community species:
  • Ipomoea pes-caprae
    Ipomoea pes-caprae
    Ipomoea pes-caprae, also known as Beach Morning Glory or Goat's Foot, is a common pantropical creeping vine belonging to the family Convolvulaceae. It grows on the upper parts of beaches and endures salted air. It is one of the most common and most widely distributed salt tolerant plants and...

  • Hydrocotyle bonariensis
    Hydrocotyle bonariensis
    Hydrocotyle bonariensis once a member of the family Apiaceae, now in the family Araliaceae and of the genus Hydrocotyle is a hairless and creepy perennial.-Description:Flowers: Numerous white to creamy yellow flowers, flower stalks can be ....

  • Juncus acutus
    Juncus acutus
    Juncus actus or spiny rush, sharp rush or sharp-pointed rush is of the monocot family Juncaceae and genus Juncus. It grows in salt marshesand on dunesand is reliable for reducing erosion rates...

  • Panicum sabularum
  • Spartina cf. ciliata
  • Hydrocotyle umbellata
    Hydrocotyle umbellata
    Hydrocotyle umbellata, is an aquatic plant that thrives in wet, sandy habitat. Its English common name is manyflower marsh pennywort or dollarweed. It is native to North America and parts of South America. It can also be found growing as an introduced species and sometimes a noxious weed on other...

Colombian communities: In a remote sensing
Remote sensing
Remote sensing is the acquisition of information about an object or phenomenon, without making physical contact with the object. In modern usage, the term generally refers to the use of aerial sensor technologies to detect and classify objects on Earth by means of propagated signals Remote sensing...

 project for rapid ecological evaluation
Ecological traps
Ecological traps are scenarios in which rapid environmental change leads organisms to prefer to settle in poor-quality habitats.The concept stems from the idea that organisms that are actively selecting habitat must rely on environmental cues to help them identify high quality habitat...

, S. crassiflorus was found in Colombia
Colombia
Colombia, officially the Republic of Colombia , is a unitary constitutional republic comprising thirty-two departments. The country is located in northwestern South America, bordered to the east by Venezuela and Brazil; to the south by Ecuador and Peru; to the north by the Caribbean Sea; to the...

 inhabiting two areas that were evaluated.

A flood prone coastal region:
Acanthospermum australe
Acanthospermum australe
Acanthospermum australe is an herbaceous plant...

, Acicarpha tribuloides
, Ambrosia tenuifolia, Androtrichium trigynum, Azolla sp., Bacopa monnieri
Bacopa monnieri
Bacopa monnieri is a perennial, creeping herb whose habitat includes wetlands and muddy shores...

, Baccharis articulata, Cardionema ramosissima, Centella asiatica
Centella asiatica
Centella asiatica is a small herbaceous annual plant of the family Mackinlayaceae or subfamily Mackinlayoideae of family Apiaceae, and is native to India, Sri Lanka, northern Australia, Indonesia, Iran, Malaysia, Melanesia, Papua New Guinea, and other parts of Asia...

, Cephalanthus glabratus, Chenopodium retusum, Cuphea carthagenensis, Cynodon dactylon
Cynodon dactylon
Cynodon dactylon , also known as Dūrvā Grass, Bermuda Grass, Dubo, Dog's Tooth Grass, Bahama Grass, Devil's Grass, Couch Grass, Indian Doab, Arugampul, Grama, and Scutch Grass, is a grass native to north and east Africa, Asia and Australia and southern Europe...

, Cyperus haspan
Cyperus haspan
Cyperus haspan is a dwarf papyrus sedge from Mexico, has mop heads of flowers in Summer. Not frost hardy in the UK and therefore should be removed from ponds and kept in a frost free greenhouse.Plant in zones 1,2,3 ....

, Cyperus virens, Enydra sessilis, Erechtites hieracifolia
Erechtites hieracifolia
Erechtites hieracifolia is a plant in the daisy family, Asteraceae. It is native to the Americas, but can be found many places around the world having been introduced by human activity.-Description:...

, Eryngium pandanifolium, Hedyotis salzmanii, Ischaemum minus, Juncus microcephalus, Nymphoides indica, Panicum racemosum, Paspalum nicorae, Petunia litoralis, Pluchea sagitalis, Polygonum punctatum, Pterocaulon
Pterocaulon
Pterocaulon is a genus of flowering plant in the Asteraceae family.It contains the following species:* Pterocaulon sphacelatum...

sp., Ranunculus apiifolius,Sesbania punicea, Solanum platense, Thelipteris interrupta, Xyris jupicai and Zizaniopsis bonariensis.

A sandy area near to a forest:
Acanthospermun australe, Baccharis arenaria, Cynodon dactylon
Cynodon dactylon
Cynodon dactylon , also known as Dūrvā Grass, Bermuda Grass, Dubo, Dog's Tooth Grass, Bahama Grass, Devil's Grass, Couch Grass, Indian Doab, Arugampul, Grama, and Scutch Grass, is a grass native to north and east Africa, Asia and Australia and southern Europe...

, Fragmites communis, Hydrocotyle bonariensis
Hydrocotyle bonariensis
Hydrocotyle bonariensis once a member of the family Apiaceae, now in the family Araliaceae and of the genus Hydrocotyle is a hairless and creepy perennial.-Description:Flowers: Numerous white to creamy yellow flowers, flower stalks can be ....

, Mikania micrantha
Mikania micrantha
Mikania micrantha is a tropical plant in the Asteraceae. It is also known as the Bitter Vine in the Commonwealth of The Northern Marianas Island....

, Myrcianthes cisplatensis, Oenothera
Oenothera
Oenothera is a Genus of about 125 species of annual, biennial and perennial herbaceous flowering plants, native to North and South America. It is the type genus of the family Onagraceae, the Evening Primrose Family. Common names include evening-primrose, suncups, and sundrops.The species vary in...

sp., Passiflora caerulea
Passiflora caerulea
Passiflora caerulea, commonly known as the Blue Passion Flower or the Common Passion Flower, is a vine native to South America...

, Polygonum
Polygonum
Polygonum is a genus in the Polygonaceae family. Common names include knotweed, knotgrass, bistort, tear-thumb, mile-a-minute, and several others. In the Middle English glossary of herbs "Alphita" , it was known as ars-smerte. There have been various opinions about how broadly the genus should be...

sp., Salyx hunboldtiana, Sapium glandulosum, Schoenoplectus californicus
Schoenoplectus californicus
Schoeneoplectus californicus is a species of sedge known by the common names California bulrush and giant bulrush. It is also sometimes called "tule", but the closely related Schoenoplectus acutus is the more correct owner of that name.-Description:Schoeneoplectus californicus is a rhizomed water...

, Sebastiania schottiana, Sesbania punicea, Theliptheris interrupta and Tillandsia aeranthos
Tillandsia aeranthos
Tillandsia aeranthos is a species of the genus Tillandsia. This species is native from Brazil to Argentina.- Cultivars :* Tillandsia 'Bergos'* Tillandsia 'Bob Whitman'* Tillandsia 'Cooroy'* Tillandsia 'Ed Doherty'...

.

Distribution

Native
Native plant
Native plant is a term to describe plants endemic or naturalized to a given area in geologic time.This includes plants that have developed, occur naturally, or existed for many years in an area...

Neotropic
Neotropic
In biogeography, the Neotropic or Neotropical zone is one of the eight terrestrial ecozones. This ecozone includes South and Central America, the Mexican lowlands, the Caribbean islands, and southern Florida, because these regions share a large number of plant and animal groups.It is sometimes used...

:
Brazil: Brazil
Brazil
Brazil , officially the Federative Republic of Brazil , is the largest country in South America. It is the world's fifth largest country, both by geographical area and by population with over 192 million people...

Southern South America: Argentina
Argentina
Argentina , officially the Argentine Republic , is the second largest country in South America by land area, after Brazil. It is constituted as a federation of 23 provinces and an autonomous city, Buenos Aires...

, Uruguay
Uruguay
Uruguay ,officially the Oriental Republic of Uruguay,sometimes the Eastern Republic of Uruguay; ) is a country in the southeastern part of South America. It is home to some 3.5 million people, of whom 1.8 million live in the capital Montevideo and its metropolitan area...


Current
Neotropic
Neotropic
In biogeography, the Neotropic or Neotropical zone is one of the eight terrestrial ecozones. This ecozone includes South and Central America, the Mexican lowlands, the Caribbean islands, and southern Florida, because these regions share a large number of plant and animal groups.It is sometimes used...

:
Brazil: Brazil
Brazil
Brazil , officially the Federative Republic of Brazil , is the largest country in South America. It is the world's fifth largest country, both by geographical area and by population with over 192 million people...

Southern South America: Argentina
Argentina
Argentina , officially the Argentine Republic , is the second largest country in South America by land area, after Brazil. It is constituted as a federation of 23 provinces and an autonomous city, Buenos Aires...

, Uruguay
Uruguay
Uruguay ,officially the Oriental Republic of Uruguay,sometimes the Eastern Republic of Uruguay; ) is a country in the southeastern part of South America. It is home to some 3.5 million people, of whom 1.8 million live in the capital Montevideo and its metropolitan area...

Australasia
Australasia
Australasia is a region of Oceania comprising Australia, New Zealand, the island of New Guinea, and neighbouring islands in the Pacific Ocean. The term was coined by Charles de Brosses in Histoire des navigations aux terres australes...

:
Australia: New South Wales
New South Wales
New South Wales is a state of :Australia, located in the east of the country. It is bordered by Queensland, Victoria and South Australia to the north, south and west respectively. To the east, the state is bordered by the Tasman Sea, which forms part of the Pacific Ocean. New South Wales...

New Zealand North: Wellington
Wellington
Wellington is the capital city and third most populous urban area of New Zealand, although it is likely to have surpassed Christchurch due to the exodus following the Canterbury Earthquake. It is at the southwestern tip of the North Island, between Cook Strait and the Rimutaka Range...

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