Calyptocarpus

Calyptocarpus is a genus of flowering plants in the family Asteraceae.[3][4]

Calyptocarpus
Calyptocarpus vialis
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Subfamily: Asteroideae
Tribe: Heliantheae
Subtribe: Ecliptinae
Genus: Calyptocarpus
Less.[1]
Type species
Calyptocarpus vialis
Less.
Synonyms[2]
  • Calyptrocarpus Rchb. 1841 not Less. 1832
  • Oligogyne DC.

The name is derived from the Greek kalypto ("covered or hidden") and karpos ("fruit").[1] Species are distributed in the southern United States and Latin America.[1]

These are perennial herbs with decumbent to prostrate stems up to 30 centimeters long. The oppositely arranged leaves have blades of various shapes with toothed edges. Flower heads are solitary in the leaf axils. Each has 3 to 8 light yellow ray florets and several yellow disc florets. The fruit is a flat cypsela with a pappus of 2 or more awns.[1]

There are 2[1][5] to 6[6] species accepted in the genus.

Species[2][5]
  • Calyptocarpus biaristatus - Brazil, Paraguay, Uruguay, Argentina
  • Calyptocarpus burchellii - southeastern Brazil
  • Calyptocarpus vialis – straggler daisy, horseherb, hierba del caballo, lawnflower,[7] creeping Cinderella-weed[8] - Texas, Louisiana, Central America, Venezuela; naturalized in Taiwan, Australia, Hawaii, parts of United States
  • Calyptocarpus wendlandii - Central America, southern Mexico

References
  1. "Calyptocarpus Lessing, Syn. Gen. Compos. 221. 1832". Flora of North America. eFloras.org. Retrieved 2013-10-30.
  2. "Flann, C (ed) 2009+ Global Compositae Checklist". Archived from the original on 2014-11-11. Retrieved 2014-11-11.
  3. Lessing, Christian Friedrich. 1832. Synopsis generum compositarum earumque dispositionis novae tentamen, monographis multarum Capensium interjectis 221. in Latin
  4. Tropicos, Calyptocarpus Less.
  5. Nesom, G. L. (2011). Is Calyptocarpus vialis (Asteraceae) native or introduced in Texas? Phytoneuron 31, 1-7.
  6. Calyptocarpus. The Plant List.
  7. Calyptocarpus vialis. Lady Bird Johnson Wildflower Center. University of Texas, Austin.
  8. "Calyptocarpus vialis". Germplasm Resources Information Network. Agricultural Research Service, United States Department of Agriculture. Retrieved 25 January 2018.

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