Alstroemeria aurea Graham

Herb with many simple stems to 1.2 m long from thin rhizome, with tuberous roots. Leaves oblanceolate or lanceolate, bluntly acute to obtuse, 7–11 cm long, 1–2 cm wide; petiole 1–3 cm long, twisted. Inflorescence erect with numerous flowers; pedicels 4–5 cm long. Perianth yellow to orange-red, striated and spotted with reddish brown; segments overlapping to form a wide tube 2 cm long. Sepals broadly spathulate, 3.5–4 cm long, to c. 1 cm wide. Petals spathulate, 3.5–4 cm long, 1 cm wide; posterior petals heavily striated, anterior petal much less so. Stamens 3–4 cm long; anthers 2–3 mm long. Ovary 4–5 mm long, prominently ribbed; style 2.5–3.5 cm long; stigmas divergent, 3–5 mm long. Capsule angularly subglobose with prominent ribs, 1.5–3 cm long, 1–1.8 cm diam. Seeds rugose-tuberculate, 2–3 mm diam.; reddish brown.

It is a temperate plant. It grows naturally in moist woodland in Chile. It requires a moist well drained soil. In Argentina it grows between 200-1,900 m above sea level. It can tolerate frosts especially once well established. It can grow in some shade. It suits hardiness zone 8.

Cultivated as an ornamental garden plant for its showy flowers.

It can be grown from seed or by careful division of the rootstock. Seeds need cold treatment.