noun
tropical milkweed; bloodflower
A species of milkweed native to the American tropics, often grown as an ornamental plant. Scientific name: Asclepias curassavica.
庭に唐綿を植えて、蝶を呼び寄せている。
I planted tropical milkweed in the garden to attract butterflies.
The kanji 唐 (tō, 'Tang; foreign') and 綿 (wata, 'cotton') refer to the plant's silky seed fibers, which resemble cotton.