### Identification Look for an erect, somewhat sprawling herb reaching 30–100 cm in height. The *Adenostemma viscosum* is a member of the daisy family, but don’t expect classic petals. Its flower heads are small, white, fuzzy "buttons" composed entirely of disc florets. The real giveaway is the fruit (achene): each one is crowned with three distinct, club-shaped glands that secrete a thick, gummy resin. If you see a white flower head that looks like it’s covered in tiny, sticky dewdrops, you’ve found it. Its opposite, serrated leaves are broadly ovate and often feel slightly rough or "clammy" to the touch, distinguishing it from the similar-looking *Ageratum*, which lacks the sticky glandular "knobs."
### Habitat & Range This pantropical traveler loves "wet feet" and dappled sunlight. It is most at home in the humid understory of rainforests, along shaded riverbanks, and bordering muddy mountain trails. It is a common sight across Southeast Asia, Africa, and the Pacific Islands, thriving from sea level up to mid-elevation cloud forests (roughly 2,000m) where moisture is constant.
### Behaviour *Adenostemma* is the ultimate botanical hitchhiker. While the plant itself is stationary, its reproductive strategy is highly active. As a mammal—or a hiker—brushes past, the sticky glands on the seeds act like natural Velcro, firmly gluing the achenes to fur or fabric. In the field, you’ll notice it often grows in clusters along trails, effectively "waiting" for a carrier to transport its DNA to the next clearing.
### Diet As a primary producer, it survives on a diet of sunlight and soil nutrients. It is particularly efficient at mining nitrogen from the rich, decaying leaf litter of the forest floor, using its broad leaves to capture the fleeting "sunflecks" that penetrate the canopy.
### Fascinating Fact The "glue" on its seeds is remarkably waterproof! This resin is so resilient that the seeds can remain tacky even after being washed down tropical streams or surviving heavy monsoons, ensuring they stay attached to their host until they are eventually scratched off in a new location.