"They have yellow or white-and-black striped bark and a large tuft at the tops which can be knitted into a Thneed. This tuft is typically a warm color, commonly red, orange, yellow, pink, or purple (which is rare). Truffula trees apparently give off the smell of butterfly milk. The tufts which are furry to the touch apparently are \"softer than silk.\""@en . "Truffula Tree"@en . "They have yellow or white-and-black striped bark and a large tuft at the tops which can be knitted into a Thneed. This tuft is typically a warm color, commonly red, orange, yellow, pink, or purple (which is rare). Truffula trees apparently give off the smell of butterfly milk. The tufts which are furry to the touch apparently are \"softer than silk.\""@en . .