Zephyranthes rosea Lindl.

Common Names: Rain Lily, Lily Grass,
Zephyranthes rosea grows as a slightly succulent herb from a fleshy underground bulb with a basal rosette of leaves. The leaves are linear, parallel veined to 20 cm long and 0.5 cm wide with an acute leaf apex and entire margin. The complete, perfect, actinomorphic flower is solitary and surrounded by a spathe. The calyx has 3 pink sepals and the corolla has 3 pink petals. The calyx and corolla are fused together along their lower half. There are 6 stamens partially fused to the perianth forming a tubular hypanthium. The ovary is inferior and has three locules containing multiple ovules each. The fruit is capsule that is brown at maturity with black flat seeds.
References
1. https://levypreserve.org/plant-listings/zephyranthes-rosea/