Chondrilla (plant)

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Chondrilla
Chondrilla juncea-pjt.jpg
Chondrilla juncea
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Subfamily: Cichorioideae
Tribe: Cichorieae
Subtribe: Chondrillinae
Genus: Chondrilla
L.
Synonyms [1]
  • ZollikoferiaNees
  • AspideiumZollik. ex DC.
Chondrilla chondrilloides Chondrilla chondrilloides ENBLA04.jpg
Chondrilla chondrilloides

Chondrilla is a genus of flowering plants in the family Asteraceae. [2] [3] They are native to Eurasia, and certain taxa are known as introduced species outside their native range. [4] The best known of these is rush skeletonweed (Chondrilla juncea), a noxious weed established in Africa, Australia, and the Americas. [5]

Chondrilla species produce one or more stems up to 1.5 meters tall from a taproot which can be very deep and highly branched. The basal and lower stem leaves are divided and toothed, and are borne on winged petioles. The upper leaf blades are smaller and simple. The cylindrical flower heads are often solitary but may grow in clusters, and are located along the branches and at the ends. They contain several yellow florets that soon wither. The fruit is a cylindrical, beaked, ribbed cypsela with a pappus of many white bristles. [4]

This genus is closely related to the dandelions of genus Taraxacum. Plants of both genera undergo apomixis, producing fertile seeds via asexual reproduction. [6]

Confusingly, the name Chondrilla is shared by a genus of Demosponge.

Species [7]

Related Research Articles

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Viminaria juncea is the single species in the genus Viminaria endemic to Australia. The genus is in the pea family Fabaceae. It is colloquially known as native broom after its resemblance to the related European broom plants. The Noongar peoples know the plant as koweda.

Plant reproduction is the production of new offspring in plants, which can be accomplished by sexual or asexual reproduction. Sexual reproduction produces offspring by the fusion of gametes, resulting in offspring genetically different from either parent. Asexual reproduction produces new individuals without the fusion of gametes, resulting in clonal plants that are genetically identical to the parent plant and each other, unless mutations occur.

<i>Solidago juncea</i> Species of flowering plant

Solidago juncea, the early goldenrod, plume golden-rod, or yellow top, is a North American species of herbaceous perennial plants of the family Asteraceae native to eastern and central Canada and eastern and central United States. It grows from Nova Scotia west to Manitoba and Minnesota south as far as northern Georgia and northern Arkansas, with a few isolated populations in Louisiana and Oklahoma.

<i>Taraxacum officinale</i> Common flowering plant species of dandelion

Taraxacum officinale, the dandelion or commondandelion, is a flowering herbaceous perennial plant of the dandelion genus in the family Asteraceae. The common dandelion is well known for its yellow flower heads that turn into round balls of many silver-tufted fruits that disperse in the wind. These balls are usually called "clocks" in both British and American English. The name "blowball" is also used.

<i>Aceria chondrillae</i> Species of mite

Aceria chondrillae is a gall forming deuterogynous, eriophyid (mite) often used as a biological control of the noxious weed, Chondrilla juncea, a highly competitive herbaceous perennial composite found in Europe, Asia, Australia and North America.

Chaetadelpha is a genus of plants in the family Asteraceae containing the single species Chaetadelpha wheeleri, or Wheeler's skeletonweed. This brushy perennial plant is native to the western United States.

<i>Chondrilla juncea</i> Species of flowering plant

Chondrilla juncea is a species of flowering plant in the family Asteraceae known by a number of common names, including rush skeletonweed, gum succory, devil's grass, and nakedweed. The plant is native to Europe, Asia, and North Africa, but it is known throughout most temperate regions of the world as an introduced species which is usually considered a noxious weed.

Cichorieae Tribe of flowering plants in the family Asteraceae

The Cichorieae are a tribe in the plant family Asteraceae that includes 93 genera, more than 1,600 sexually reproductive species and more than 7,000 apomictic species. They are found primarily in temperate regions of the Eastern Hemisphere. Cichorieae all have milky latex and flowerheads that only contain one type of floret. The genera Gundelia and Warionia only have disk florets, while all other genera only have ligulate florets. The genera that contain most species are Taraxacum with about 1,600 apomictic species, Hieracium with about 770 sexually reproducing and 5,200 apomictic species, and Pilosella with 110 sexually reproducing and 700 apomictic species. Well-known members include lettuce, chicory, dandelion, and salsify.

<i>Juncus articulatus</i> Species of grass

Juncus articulatus is a flowering plant species in the rush family Juncaceae. It is known by the common name jointleaf rush or jointed rush, which can also refer to J. kraussii from Australia. It is native to Eurasia, Canada, Greenland, and much of the United States. It grows in moist areas, such as wet sand, and thrives in calcareous soils. J. articulatus was found to be more sensitive to drought and salt stress than its congeners J. acutus and J. maritimus. It is a perennial herb producing mainly erect stems from a short rhizome. The stem may root at nodes, and it generally has one or more flattened hollow cylindrical leaves up to 10 centimeters long. Transverse internal partitions or joints may be seen or felt in the leaf of the plant.

<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.

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

Eupatorium sessilifolium, commonly called upland boneset or sessile-leaved boneset, is a North American plant species in the family Asteraceae. It is native to the eastern and central United States, found from Maine south to North Carolina and Alabama, and west as far as Arkansas, Kansas, and Minnesota.

<i>Taraxacum</i> Genus of flowering plants in the daisy family Asteraceae

Taraxacum is a large genus of flowering plants in the family Asteraceae, which consists of species commonly known as dandelions. The scientific and hobby study of the genus is known as taraxacology. The genus is native to Eurasia and North America, but the two most commonplace species worldwide, T. officinale and T. erythrospermum, were introduced into North America from Europe and now propagate as wildflowers. Both species are edible in their entirety. The common name dandelion is also given to specific members of the genus.

<i>Aceria</i> Genus of mites

Aceria is a genus of mites belonging to the family Eriophyidae, the gall mites. These tiny animals are parasites of plants. Several species can cause blistering and galls, including erineum galls. A few are economically significant pests, while others are useful as agents of biological pest control of invasive plants such as rush skeletonweed, creeping thistle, and field bindweed.

Shinnersoseris is a genus of flowering plants in the family Asteraceae.

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

Lygodesmia, called skeletonplant, is a genus of North American flowering plants in the tribe Cichorieae within the family Asteraceae.

<i>Senecio spartioides</i> Species of flowering plant

Senecio spartioides is a species of flowering plant in the aster family known by the common name broom-like ragwort. It is native to the western United States as far east as the Dakotas and Texas, and northern Mexico. It can be found in dry, rocky, often disturbed areas in a number of habitat types. It is a subshrub which can exceed a meter in height, its arching stems growing from a woody-topped taproot. The leaves are linear in shape and up to 10 centimeters long. The leaves usually have smooth, unlobed edges, but slightly lobed leaves are seen at times. The leaves are evenly distributed along the stems, the ones low on the stems withering away early, giving the plant a naked appearance on the lower half while the top is still lush green and blooming. The inflorescences are spreading, flat-topped arrays of many cylindrical flower heads. The heads contain yellow disc florets and generally either 5 or 8 ray florets each about a centimeter long.

<i>Pleiacanthus</i>

Pleiacanthus is a monotypic genus of flowering plants in the family Asteraceae containing the single species Pleiacanthus spinosus, which is known by the common name thorn skeletonweed, or thorny skeletonweed. It is native to the western United States from Montana and Idaho to southern California and Arizona, where it grows in many types of mostly dry habitat from deserts to mountains. It is a spindly subshrub producing several slender stems up to 40 or 50 centimeters tall from a woody caudex. The stems divide many times into short, rigid branches which narrow to sharp thorn-tips. The plant is mostly hairless except for brownish woolly tufts at the base and below the basal leaves. The leaves are small and linear on the lower stem, and reduced to scale-like growths on the upper branches. Flower heads occur near the ends of the branches. Each has a cylindrical base wrapped in one layer of phyllaries. The head contains 3 to 5 ray florets, each with an elongated tube and a pale to bright pink ligule. The fruit is an achene tipped with a cluster of pappus bristles which are not plumelike as are those of the Stephanomeria species with which this plant was once classified.

<i>Juncus acutiflorus</i> Species of grass

Juncus acutiflorus, also called sharp-flowered rush, is a rush or a grassy plant of the genus Juncus. As the name suggests, the plant has notable sharp-looking flowers, flowering between July and September.

<i>Bradyrrhoa gilveolella</i> Species of moth

Bradyrrhoa gilveolella is a species of moth of the family Pyralidae. It was described by Georg Friedrich Treitschke in 1833. It is found in Greece, Sicily, Albania, North Macedonia, Bulgaria, Romania, Turkey, southern Russia, from Kazakhstan to Ukraine and south to central Iran.

<i>Calochortus coxii</i> Species of flowering plant

Calochortus coxii is a rare species of flowering plant in the lily family known by the common names Cox's mariposa lily and crinite mariposa lily. It is endemic to Oregon in the United States, where it is known only from Douglas County.

References

  1. Flann, C (ed) 2009+ Global Compositae Checklist Archived 2014-11-13 at archive.today
  2. Linnaeus, Carl von. 1753. Species Plantarum 2: 796-797 in Latin
  3. Tropicos, Chondrilla L.
  4. 1 2 Chondrilla. Flora of North America.
  5. Chondrilla juncea. Flora of North America.
  6. Van Dijk, P. J. (2003). Ecological and evolutionary opportunities of apomixis: insights from Taraxacum and Chondrilla. Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences 358(1434), 1113-21.
  7. Chondrilla. The Plant List.