One has thin sharp leaves. When you tug on it, you get an image of the Eternal Sword.

The other's leaves have all fallen off, but there are eleven dried seedpods along its length that rattle faintly. When you tug on it, you hear a flash of speech: "--and I call on the power of those who balance you, Celsius, and Volt, and Gnome, and Shadow, who are together bound by our pact and vow--"

Neither comes free of the general tangle, but they're pretty dead.