Compilation
Cacalia cordifolia

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Name

Identification
Roldana sessifolia (Hook. & Arn.) H. Rob. & Brettell [family COMPOSITAE ] (stored under name); Cacalia cordifolia Kunth [family COMPOSITAE ] Senecio unrecorded L. [family COMPOSITAE ]
Related name
  • Cacalia sessilifolia
  • Senecio cordifolius
  • Cacalia angulata
  • Senecio unrecorded
  • Senecio cardiophyllus
  • Cacalia quadriflora
  • Cacalia nutans
  • Psacalium pringlei
  • Cacalia cirsiifolia
  • Cacalia cordifolia
  • Cacalia aungulata
  • Roldana sessifolia
  • Senecio cirsiifolius

Flora

Entry for Mikania cordifolia (Linnaeus f.) Willdenow [family COMPOSITAE]
Herbarium
Flora of North America (FNA)
Collection
Flora of North America
Resource Type
Reference Sources
Entry From
Flora of North America, Vol 21,
Names
Mikania cordifolia (Linnaeus f.) Willdenow [family COMPOSITAE], Sp. Pl., 3: 1746. 1803
Cacalia cordifolia Linnaeus f. [family COMPOSITAE], Suppl. Pl., 351. 1782
Treatment Author(s)
Walter C. Holmes
Information
Stems 6-angled, gray-tomentulose or tomentose; internodes 5–20 cm. Petioles 25–55 mm, densely pilose to tomentose. Leaf blades ovate to deltate, 5–10 × 3–8 cm, bases cordate, margins subentire to undulate-dentate, apices acute to acuminate, faces densely pilose to tomentose (abaxial paler than adaxial). Arrays of heads compound-corymbiform (terminal and lateral), 6 × 7+ cm. Heads 7–10 mm. Phyllaries substramineous, elliptic to narrowly ovate, 6–8 mm, apices acute to slightly rounded. Corollas white, 3.5–5 mm, lobes linear. Cypselae brown, 3–4 mm, glabrous or pubescent, sparsely gland-dotted; pappi of ca. 60 white, barbellate bristles 4–5 mm. 2n = 38.
Phenology
sep-nov (fall), dec (winter)
Altitude range
0–100 m;
Distribution
MexicoWest IndiesCentral AmericaSouth America.USA Ala.USA Fla.USA Ga.USA La.USA Miss.USA Tex.
Discussion
Mikania cordifolia grows in all wet-tropical and subtropical America from northern Argentina to the lower Gulf Coastal Plain of the United States. It has the largest natural distribution of any species in the genus. In the tropics, M. cordifolia tends to be weedy, frequently occupying disturbed sites, usually in the lowlands. It is not weedy in the United States. In Louisiana, Mississippi, and Texas, M. cordifolia occurs in relatively open seeps and stream sides in beech (Fagus grandiflora Ehrhart) woods. It was collected in 1875 from the Navy Ballast Yard in Kargins Point, New Jersey (W. C. Holmes 1981); no further records for New Jersey are known.

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