Senna pentagonia (Mill.) H.S.Irwin & Barneby var. pentagonia

  • Authors

    Howard S. Irwin, Rupert C. Barneby

  • Authority

    Irwin, Howard S. & Barneby, Rupert C. 1982. The American Cassiinae. A synoptical revision of Leguminosae tribe Cassieae subtrib Cassiinae in the New World. Mem. New York Bot. Gard. 35, part 1: 1-454.

  • Family

    Caesalpiniaceae

  • Scientific Name

    Senna pentagonia (Mill.) H.S.Irwin & Barneby var. pentagonia

  • Type

    Holotypus, so ticketed in Houston’s hand and annotated by Solander, BM! = BH Neg. 5164 = NY Neg. 159. The pod had been illustrated earlier by P. Miller, Fig. t. 82, fig. c. 1760, but there mistakenly associated with a plant of C. bicapsularis. Erroneously

  • Synonyms

    Cassia pentagonia Mill.

  • Description

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    Variety Description - Fruiting pedicels 14-22 mm; otherwise as given in key. [Key: "Fls relatively small, the longest sepal 7-9 mm, the longest petal 11-15 mm; style 3-4 mm; body of 3 abaxial anthers 3-4 mm, their beak 1-2 mm; dispersal bicentric: s. Mexico to Honduras; s.-e. Brazil."]—Collections: 13.

    Distribution and Ecology - Disturbed thickets, weedy grassland, roadsides, ditches and lake shores, not known to occur on limestone and certainly not confined to calcareous soils, mostly below 750 but ascending in Chiapas to 1270, in Honduras to 1200 m, rare and scatterd: s. Mexico (Gulf slope in Chiapas and Campeche; Pacific slope in w. Guerrero), and Honduras (Morazan); s.-e. Brazil (w. Bahia to s.-centr. and s.-e. Minas Gerais and e. S. Paulo).—Fl. in N. America IX-X, in Brazil III—IV.

  • Distribution

    Chiapas Mexico North America| Campeche Mexico North America| Guerrero Mexico North America| Morazán Honduras Central America| Bahia Brazil South America| Minas Gerais Brazil South America| São Paulo Brazil South America|