Zornia tenuifolia Moric., Pl. Nouv. Am.

Zeferino, Laís Couto, Lewis, Gwilym Peter, Pezzini, Flávia Fonseca & Fortuna-Perez, Ana Paula, 2025, A taxonomic synopsis of the genus Zornia J. F. Gmel. (Leguminosae: Papilionoideae) for the Neotropics, Acta Botanica Brasilica (e 20240197) 39, pp. 1-37 : 31

Zornia tenuifolia Moric., Pl. Nouv. Am. 132. 1844.

Fig. S2

Type: BRAZIL. Bahia: Jacobina, Serra do Açuruá , June 1844, J.S. Blanchet 3794 (holotype G–00370158 !; isotype BR!, F–0093435F !, K–000848813 !, MO–714957 !, P–02142442 !) .

Shrub to ca. 80 cm tall. Stems erect, branched, glabrous. Leaves with 4 leaflets, petiolate. Leaflets 5–35 × 1–3.5 mm, filiform, glabrous. Stipules elliptic, 3–6 veined. Inflorescences spiciform, axillary, 25 cm long. Bracteoles 4–6 × 2–3 mm, elliptic, 4–6 veined, punctate, sericeous, green. Loment with 4–5 articles; articles 2–2.8 × 2–2.5 mm, reticulate-veined, bristle-like trichomes 1 mm long.

Distribution and habitat: Brazil, endemic. It occurs in the Caatinga vegetation of Tropical Dry Forest.

Conservation Status: Endangered (EN). Considering the species is endemic to Brazil and occurs exclusively in the caatinga region, Zornia tenuifolia faces significant threats to its survival (EOO= 140,485.652 km ²; AOO= 60.000 km ²).

Notes: Zornia tenuifolia can be distinguished by its filiform leaflets, and its elliptic stipules and bracteoles.

Representative specimen examined: BRAZIL. Bahia: Gentio do Ouro , 24 August 2007, A.P. Fortuna-Perez et al. 275 (UEC).

Figures

Figure 2. Zornia richness in the Neotropics, all 50 species represented (map prepared using the monographaR package).