Chamaecrista rotundifolia ( Persoon 1805: 456 ) Greene (1899:31)

Gomes, Aureliana Santos, Rodrigues, Erimágna De Morais, Moura, Débora Coelho, Melo, José Iranildo Miranda De, Ribeiro, Rayane De Tasso Moreira & Queiroz, Rubens Teixeira De, 2022, Fabaceae Lindl. in a Conservation Unit in the Semi-Arid Region of Paraíba, Brazil, Phytotaxa 555 (1), pp. 17-41 : 28

publication ID

https://doi.org/ 10.11646/phytotaxa.555.1.2

DOI

https://doi.org/10.5281/zenodo.6886099

persistent identifier

https://treatment.plazi.org/id/038E87C1-995A-5F21-04DF-EF67FC9873F8

treatment provided by

Plazi

scientific name

Chamaecrista rotundifolia ( Persoon 1805: 456 ) Greene (1899:31)
status

 

12. Chamaecrista rotundifolia ( Persoon 1805: 456) Greene (1899:31) View in CoL

Herbs, branches pilose, inermous. Nectary absent. Stipules lateral stipules, ovate. Leaves paripinnate, 2–foliolate, leaflets opposite, obovate, venation actinodromous, translucid punctuation absent. Inflorescence cymose, axillary. Flowers pedicellate, asymmetric, diplostemonous; calyx dialysepalous, sepals 5, corolla dialypetalous, yellow, petals 5; androecium dialystaminous, homodinamous, anthers longitudinal; ovary superior, sessile, pluriovulate. Fruit legume, sessile, linear, plane, margin straight, epicarp glabrous, brown. Seeds trapezoid, plane, coat black, hilum basal.

Examined material:— BRAZIL. Paraíba: Maturéia, Pico do Jabre , 800 m elev., 13 May 2019, fl. & fr., Aureliana Gomes 2098 ( HACAM) .

Distribution and ecology:— The species occurs from the western United States of America to Uruguay, has records in the five regions of Brazil in all its phytogeographic domains ( Flora do Brasil 2020), associated with open and anthropogenic environments with invasive plant behavior (Queiroz; Loiola, 2009; Dantas; Silva, 2013, Souto et al. 2019).

Phenology:— Registered with flowers and fruits in May.

Taxonomic discussion:— Chamaecrista rotundifolia can be recognized by the absence of nectary, bifoliolate leaves, asymmetrical pedicel flowers, dialypetalous corolla.

Kingdom

Plantae

Phylum

Tracheophyta

Class

Magnoliopsida

Order

Fabales

Family

Fabaceae

Genus

Chamaecrista

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