- 2010 – South American Vicia Fieldwork
Argentina, Bolivia, Chile, Peru
Field collection sites: Chile (Termas de Chillán, San José de la Mariquina); Peru (Canta); Bolivia (La Paz); Argentina (Buenos Aires, Zárate, Islas de Ibicuy, Gualeguaychú, Corrientes, Chaco National Park, Arroyo Baí, Iguazú National Park).
Field team: Paulina Hechenleitner, Oliver Whaley.
Herbarium sets: E, K, SGO
- 2008 – Northern Chile Expedition
Royal Botanic Garden Edinburgh, 16 November – 18 December
Field collection sites: La Chimba (Antofagasta), Caleta El Cobre, Botija, Paposo, Quebrada La Rinconada, Cerro Perales (Taltal), Pan de Azúcar National Park, San Pedro de Atacama (Cuesta del Diablo, Machuca, Paso Jama, Quebrada Quitor, Río Vilama, Turipite, Valle de la Luna), Llullaillaco National Park (Aguas Calientes, Quebrada Las Zorras, Río Frío), Alto Loa (Ollagüe, Cerro Chela, Chiu-Chiu, Toconce, Quebrada Carrizo), and the Iquique region (Quebrada Lirima–Pachica, Quillagua–Salar de Huasco).
Field team: Richard Baines, Martin Gardner, Paulina Hechenleitner, Clare Morter, David Rae.
Herbarium sets: E, CONC
- 2006 – Chilean/Argentine Patagonia Expedition
RBGE & UACh, 1 Febrero – 23 Febrero
Field collection sites: Mancera y Corral, Parque Oncol, Chiloé, Termas de Chillán, Nahuelbuta National Park, Conguillío National Park, Torres del Paine National Park. In Argentina: Bariloche, Puerto Blest.
Field team: Richard Ennos, Martin Gardner, Paulina Hechenleitner, Pete Hollingsworth, Camila Martinez.
Herbarium sets: E, CONC, SGO
- 2004 – Darwin Initiative Project (DEFRA 11-012), Central Chile Expedition
UACh & RBGE, 20 January – 11 February
Field collection sites: Radal Siete Tazas National Park, Los Ruiles National Reserve, Federico Albert National Reserve, Bellotos del Melado National Reserve, Laguna Amargo (Bullileo Reservoir), Laguna de La Plata (San Fabián de Alico), Minas del Prado (Chillán), Florida sector (Concepción), Quebrada Honda (Lirquén), Pedro del Río Zañartu Park (Hualpén), Nahuelbuta National Park, and Maitenrehue (Angol).
Field team: Pete Brownless, Martin Gardner, Paulina Hechenleitner, Adria Lovet, Philip Thomas.
Herbarium sets: E, CONC, SGO
- 2003 – Darwin Initiative Project (DEFRA 11-012), Southern Chile Expedition
Royal Botanic Garden Edinburgh & UACh, 12 January – 12 February
Field collection sites: Ralco National Reserve, Lárqui (Bulnes), Chiguayante (Concepción), Victoria (Temuco), Villa Las Araucarias, Nahuelbuta National Park, Conguillío National Park, Laguna del Laja National Park, Termas de Chillán, Corral de Salas (Maule), Laguna del Maule, Laguna del Perro (Pichilemu), Roblería del Cobre de Loncha National Reserve, and Gruta de la Aguada (Corral).
Field team: Pete Baxter, Pete Brownless, Martin Gardner, Paulina Hechenleitner, Camila Martinez, Philip Thomas.
Herbarium sets: E, CONC, SGO
- 2003 – Juan Fernández Archipelago Expedition, Chile
Royal Botanic Garden Edinburgh & UACh, 9–16 December
Field collection sites: Mirador Alexander Selkirk Trail, Cerro El Agudo (Bahía Inglesa sector), El Camote (El Yunque Trail), Plazoleta El Yunque, La Pascua sector (Bahía Francesa, Cordón del Michay), Villagra sector, San Juan Bautista, Pangal sector, La Piña sector (Puerto Francés), and Bahía del Padre.
Field team: Martin Gardner, Paulina Hechenleitner.
Herbarium sets: E, CONC, SGO
- 2002 – Darwin Initiative Project (DEFRA 11-012), Southern Chile Expedition
UACh & RBGE, 11 November – 10 December
Field collection sites: Cerro Ñielol Natural Monument (Temuco), Hacienda Rucamanque, Santa Juana (Palpal), Quebrada Honda (Puente Los Mellizos), Nonguén (Chiguayante), Pichiyanes (Arauco), Roblería del Cobre de Loncha National Reserve, La Rufina, Laguna Aculeo, Playa Ancha cliffs, Marga-Marga Valley, Quebrada Quillayuca (Horcones), Cerro Imán, Cuesta El Melón, La Campana National Park, Quebrada del Tigre, Zapallar, Fray Jorge National Park, Los Molles, and Punta Teatinos.
Field team: Richard Ennos, Martin Gardner, Paulina Hechenleitner, Pete Hollingsworth, Camila Martinez, Philip Thomas.
Herbarium sets: E, CONC, SGO