Goosegrass vs. Cleavers: Clearing the Confusion
Confusion between "goosegrass" and "cleavers" is a widespread problem for gardeners and foragers alike, primarily because the common name "goosegrass" can refer to multiple, unrelated plant species. The most common source of confusion is the sticky, clambering herb Galium aparine, which is known by many names, including both cleavers and goosegrass. However, a completely different plant, the annual grass Eleusine indica, is also frequently called goosegrass. Understanding the distinct botanical differences is the key to accurate identification.
Cleavers (Galium aparine): The Sticky Herb
Cleavers is a fast-growing, annual, scrambling herb found throughout Europe, Asia, and North America. It is a member of the coffee family (Rubiaceae) and is most famously known for its "sticky" nature, which allows it to cling to clothing and animal fur.
Identifying characteristics of cleavers:
- Growth Habit: Sprawling, scrambling, and clambering over other vegetation.
- Stems: Square, with backward-pointing hooked bristles that make the plant sticky.
- Leaves: Arranged in whorls (rings) of six to eight around the stem.
- Flowers: Small, greenish-white, four-petaled flowers that appear from May to August.
- Seeds: Small, round, and covered in hooked hairs that aid dispersal.
Goosegrass (Eleusine indica): The Turfgrass Weed
In contrast to cleavers, the plant most commonly referred to as goosegrass is a summer annual grass, which belongs to the grass family (Poaceae). It is a major nuisance in lawns, turf, and compacted soil.
Identifying characteristics of goosegrass:
- Growth Habit: Forms a flat, mat-like clump or rosette with flattened stems.
- Stems: Flattened, smooth, and have a distinctive silvery-white color at the base.
- Leaves: Dark green, with blades that are folded in the bud and a conspicuous midvein.
- Flowers: Forms distinctive seedheads with 2–7 spikes radiating from a single point, resembling a zipper or a crow's foot.
- Seeds: Tiny, reddish-brown seeds contained in the zipper-like seedheads.
Comparison Table: Cleavers vs. Goosegrass
| Feature | Cleavers (Galium aparine) | Goosegrass (Eleusine indica) |
|---|---|---|
| Plant Family | Rubiaceae (Coffee Family) | Poaceae (Grass Family) |
| Growth Habit | Sprawling, climbing, "sticky" herb | Mat-like clump, low-growing grass |
| Stems | Square, weak stems with backward-pointing hooked hairs | Flattened, whitish/silvery at the base |
| Leaves | Arranged in whorls of 6-8, lance-shaped | Flat or folded blades, prominent midvein |
| Flowers | Small, white, and star-shaped | Distinctive seedheads with 2-7 zipper-like spikes |
| Seeds/Fruit | Small, round, bristly burrs | Tiny, reddish-brown seed in zipper-like head |
| Dispersal | Clings to fur and clothing with hooked bristles | Seeds dispersed by wind, water, machinery, and animals |
Beyond Identification: Management and Use
Knowing the difference between these two plants is crucial for proper management. A weed control strategy for a broadleaf herb like cleavers will differ significantly from that for an annual turfgrass weed like goosegrass. For example, manual removal of young cleavers is effective, while the fibrous root system of mature goosegrass can make it difficult to pull.
Interestingly, their uses also differ widely. Cleavers (Galium aparine) has historical medicinal uses as a diuretic and lymphatic aid and can be consumed as a spring tonic. In contrast, Eleusine indica has been used as a productive forage and, in times of scarcity, for food, but is generally considered an aggressive weed.
Conclusion
In summary, while the terms "goosegrass" and "cleavers" are often muddled, they refer to two completely distinct plant species. The sticky, whorled-leaf plant is always Galium aparine (cleavers), whereas the mat-forming grass with zipper-like seedheads is Eleusine indica (goosegrass). Proper identification is essential for effective gardening and weed control, ensuring you apply the right management techniques for the specific plant in question.
A Final Thought for Foragers
For those interested in foraging, the distinction is particularly important. While Galium aparine is a well-known edible and medicinal herb, consuming an unidentified grass is generally not recommended. Always be certain of a plant's identity before consumption. A deeper look at cleavers' properties is available from the EBSCO Complementary and Alternative Medicine database.