Grindelia squarrosa
Encyclopedia
Grindelia squarrosa (curly-top gumweed or curly-cup gumweed) is a small North American biennial
or short-lived perennial plant
which grows to a height of 90 cm (3 ft) and bears yellow flowers from June to September. It was discovered by Lewis and Clark and before that it had been used by Great Plains Tribes as a medicinal herb.
Biennial plant
A biennial plant is a flowering plant that takes two years to complete its biological lifecycle. In the first year the plant grows leaves, stems, and roots , then it enters a period of dormancy over the colder months. Usually the stem remains very short and the leaves are low to the ground, forming...
or short-lived perennial plant
Perennial plant
A perennial plant or simply perennial is a plant that lives for more than two years. The term is often used to differentiate a plant from shorter lived annuals and biennials. The term is sometimes misused by commercial gardeners or horticulturalists to describe only herbaceous perennials...
which grows to a height of 90 cm (3 ft) and bears yellow flowers from June to September. It was discovered by Lewis and Clark and before that it had been used by Great Plains Tribes as a medicinal herb.