Mimosa tenuiflora ( Willdenow 1806: 1088 ) Poiret (1810: 66)

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 : 31

publication ID

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

DOI

https://doi.org/10.5281/zenodo.6886125

persistent identifier

https://treatment.plazi.org/id/038E87C1-995F-5F24-04DF-EB0FFCE3772D

treatment provided by

Plazi

scientific name

Mimosa tenuiflora ( Willdenow 1806: 1088 ) Poiret (1810: 66)
status

 

22. Mimosa tenuiflora ( Willdenow 1806: 1088) Poiret (1810: 66) View in CoL

Trees, branches glabrescent, aculeate. Nectary absent. Stipules caducous. Leaves bipinnate, paripinnate, 8–14– foliolate, leaflets opposite, oblong, venation actinodromous, translucid punctuation absent. Inflorescence spike, axillary. Flowers sessile, actinomorphic, diplostemonous; calyx gamosepalous, sepals 4, corolla gamopetalous, tubular, whitish, petals 4; androecium dialystaminous, homodinamous, anthers longitudinal; ovary superior, stipitate, pluriovulate. Fruit craspedium, stipitate, linear, plane-corrugate, margin straight, epicarp glabrous, brown. Seeds obovate, plane, coat brown, hilum basal.

Examined material:— BRAZIL. Paraíba: Maturéia, Pico do Jabre , 800 m elev., 02 December 2019, fl., Areliana Gomes 3158 ( HACAM) .

Distribution and ecology:— The species has a wide distribution in the Brazilian semiarid region, associated with the phytogeographic domain of the Caatinga ( Amorim et al., 2016; Souza et al., 2021).

Phenology:— Registered with flowers in December.

Taxonomic discussion:— Mimosa tenuiflora can be recognized, mainly, by the arboreous habit, aculeate, bipinnate leaves and inflorescence in spikes. A characteristic that distinguishes it from other Mimosa species in the studied area is the presence of a trunk with dark bark and in many cases it is common to have orbicular galls covered by glandular trichomes, being brown in the other representatives of the genus.

Kingdom

Plantae

Phylum

Tracheophyta

Class

Magnoliopsida

Order

Fabales

Family

Fabaceae

Genus

Mimosa

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