What is a broad leaved gum plant?

The broad leaved gum plant, scientifically known as Grindelia squarrosa, is a fascinating biennial plant that is native to North America. It goes by several other common names such as gum-weed, sticky heads, and rosinweed. One of the interesting things about this plant is its ability to produce a sticky resin, which gives it its characteristic gum-like texture.

Broad leaved gum plants are relatively small in size, typically growing to a height of 1 to 3 feet. They have broad, lance-shaped leaves that are covered in tiny hairs, giving them a slightly fuzzy appearance. The leaves are arranged in a spiral pattern along the stem, and they can vary in color from green to grayish-green.

During the first year of growth, the broad leaved gum plant develops a rosette of leaves close to the ground. In the second year, a tall, branching stem emerges from the center of the rosette, bearing numerous flowers. The flowers are bright yellow in color and have a daisy-like appearance. They are composed of both disk and ray florets, with the disk florets forming the central part and the ray florets radiating outwards.

One distinctive feature of the broad leaved gum plant is its seed heads. These seed heads are made up of numerous small, bristly structures that resemble tiny brushes or combs. These bristles or “teeth” are actually modified leaves and serve as a means of dispersing the seeds. When the seed heads mature, they become dry and brittle, and any disturbance causes them to break apart and release the seeds. The seeds are then carried by wind or attached to animals for dispersal to new locations.

In terms of growing conditions, broad leaved gum plants are adaptable and can thrive in a variety of environments. They are commonly found in prairies, meadows, and open areas with well-drained soil. They are also tolerant of dry conditions and can withstand periods of drought. In terms of sunlight, they prefer full sun but can tolerate partial shade as well.

Broad leaved gum plants can be a beneficial addition to a garden or landscape. They attract pollinators such as bees and butterflies with their bright yellow flowers, making them a valuable source of nectar. Additionally, the sticky resin produced by the plant has been used for medicinal purposes by Native Americans, particularly for treating skin conditions such as rashes and insect bites.

The broad leaved gum plant, also known as Grindelia squarrosa, is a captivating biennial plant native to North America. With its broad leaves, bright yellow flowers, and unique seed heads, it adds interest and beauty to any garden or landscape. Its adaptability and medicinal properties make it a valuable addition to both natural and cultivated spaces.

Photo of author

Caroline Bates

Caroline is a Miami-based landscaper who specializes in drought-tolerant landscapes. She is the mother of two young children and also enjoys writing for GreenPacks.org in her spare time. Caroline takes great pride in her work, and loves being able to share her knowledge with others through her writing.