Eriosema
Creators: name: Campos, Renan Pavan
name: Cândido, Elisa Silva
name: Zeferino, Laís Couto
name: Fortuna-Perez, Ana Paula
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Fabales
Fabaceae
Eriosema

description: Key to the species of Eriosema in savannas of northern South America   
1 Leaves unifoliolate.............................................................................................................................................................................2  
- Leaves usually trifoliolate, but sometimes the basal ones unifoliolate..............................................................................................3  
 2 Prostrate subshrub, stipules connate......................................................................................................................... E. simplicifolium   
 - Erect subshrub, stipules free............................................................................................................................................ E. obovatum   
 3 Stipules free and ovate.......................................................................................................................................... E. rufum var. rufum   
- Stipules connate and lanceolate to broadly lanceolate.......................................................................................................................4  
4 Stems yellow or rufous hirsute pilose................................................................................................................................................5  
- Stems densely whitish pubescent.......................................................................................................................................................7  
 5 Inflorescences spiciform, usually equal to or longer than mature leaves, multiflorous (10–20 flowers)....................... E. violaceum   
- Inflorescences in racemes, usually shorter than mature leaves, pauciflorous (2–5 flowers).............................................................6  
 6 Stipules 3–7 mm long, leaflets (including terminal and lateral) usually 5 times longer than wide (1–3.5 x 0.25–0.5 cm)........................................................................................................................................................................................................ E. parvifolium   
 - Stipules 7–17 mm long, leaflets usually 6 to 12 times longer than wide (5–12 x 0.5–1.2 cm).................... E. crinitum var. crinitum   
7 Leaflets elliptic, racemes with 5–15 flowers......................................................................................................................................8  
 - Leaflets lanceolate, linear or narrowly elliptic, racemes with 2–5 flowers................................................. E. crinitum var. stipulare   
 8 Inflorescences usually equal to or longer than mature leaves when fully expanded..................................................... E. pulchellum   
 - Inflorescences usually shorter than mature leaves when fully expanded.......................................................................... E. diffusum
description: Published as part of Campos, Renan Pavan, Cândido, Elisa Silva, Zeferino, Laís Couto & Fortuna-Perez, Ana Paula, 2023, A New Species of Eriosema (Leguminosae, Papilionoideae, Phaseoleae) from the savannas of northern South America, pp. 293-300 in Phytotaxa 612 (3) on pages 296-297, DOI: 10.11646/phytotaxa.612.3.5, http://zenodo.org/record/8323624