A plant I created for a hypothetical planet exercise over at: [link] . The setting is a hot, highly-volcanic world covered in lush jungles and acidic swamps.
The Orange Sponge Plant (Spongiradicibus luteubacis) is an opportunist specially adapted to grow on freshly-cooled lava flows. As its name implies, S. luteubacis has thick, sponge-like roots for sucking up water before it vanishes into the highly-porous volcanic rock. These roots provide an ideal habitat for many organisms, including the unusual Red-eyed Dunce Cap: [link]
The Sponge Plant produces crawling vines that spread out in an even circle from the central root. At a length predetermined by an as-yet unknown enzymatic trigger, the vines take root and produce juicy, orange, seed-filled berries that are irresistable to the many animals that wander the lava field and nearby environs.
Unlike Earth flora, the leaves of the sponge plant are brownish-yellow since their primariy photosynthesizing pigment is a compound similar to the fucoxanthin of brown algae, rather than the chlorophyll of our land-plants.