Bladder campion, also known as Silene vulgaris, can be easily identified by observing its leaves. The first leaves that emerge from the seedling are opposite in arrangement, meaning they grow directly across from each other on the stem. These leaves are ovate in shape, which means they are wider at the base and taper to a point towards the tip. They are typically dull green in color and do not have any hairs on their surface.
As the plant matures, it begins to produce a rosette. A rosette is a cluster of leaves that radiate from a central point, forming a circular shape close to the ground. This is a common growth habit seen in many plants, including bladder campion. The rosette is composed of the same type of leaves as the young seedling, with opposite, ovate, and hairless characteristics.
Once the bladder campion reaches its reproductive stage, the mature leaves continue to exhibit the opposite arrangement and narrow oval shape. These leaves also taper to a point, giving them a more elongated appearance compared to the younger leaves. The color and texture of the mature leaves may vary slightly, but they generally maintain a dull green color and lack any hairs on their surface.
It is important to note that while the leaves of bladder campion provide valuable identification clues, other features of the plant can also aid in its identification. For instance, bladder campion produces delicate white or pink flowers that have a distinct inflated calyx, resembling a bladder or balloon. These flowers are borne on long stalks and can be quite striking.
In addition, the overall growth habit and habitat of bladder campion can also help in identification. It is a herbaceous perennial plant that typically grows in open meadows, fields, and disturbed areas. It has a sprawling growth habit and can reach a height of up to 3 feet. The stems of bladder campion are often pale green and may have a slight zigzag pattern.
To summarize the identification of bladder campion, look for the following characteristics:
1. Opposite, ovate, dull green, and hairless first leaves on young seedlings.
2. Formation of a rosette as the plant matures.
3. Mature leaves that are opposite, narrowly oval, and taper to a point.
4. Delicate white or pink flowers with an inflated calyx.
5. Sprawling growth habit with pale green stems.
By observing these features, you can confidently identify bladder campion in the garden or landscape.
