SafePlants

Stiff Tickseed (Coreopsis palmata)

Considerations for Pets

• This plant is a rhizomatous perennial, meaning it spreads via underground stems. This growth habit can lead to its forming dense colonies, which may be of interest to pets exploring the garden.
• The plant's "stiff-stemmed" nature could present a physical consideration for pets navigating through or around it.

Considerations for Children

• Similar to pets, the stiff stems and potential for dense colonies due to its rhizomatous nature might be relevant for children playing in areas where the plant grows.

Coreopsis palmata, commonly known as Stiff Tickseed, is a captivating perennial wildflower with a rich history and striking appearance.

Taxonomy and Nomenclature

• Scientific Name: Coreopsis palmata Nutt.
• Family: Asteraceae (Aster or Sunflower Family)
• Common Names: Stiff Tickseed, Prairie Coreopsis, Finger Coreopsis, Wedgeleaf Coreopsis, Prairie Tickseed.
• Synonyms: The text explicitly uses "stiff coreopsis" as an alternate name.

Distribution and Habitat

• Stiff Tickseed is native to the Great Plains, parts of the Midwest, and the South.
• It thrives in habitats such as prairies, open woods, and sun fields.
• It is notably not native to New England, with only a single collection recorded in Massachusetts.

Ecological Role

• Coreopsis palmata spreads by rhizomes, forming dense colonies. This allows it to be heat and drought-resistant, potentially outcompeting other species in suitable environments.

Morphological Characteristics

• It is a stiff-stemmed, erect perennial, typically growing to 1-3 feet in height (approximately 2.5 feet according to one source).
• The leaves are sessile (attached directly to the stem without a stalk) and often have three long, narrow lobes.
• The flowers are bright yellow and medium-sized, featuring 7-15 variable petals.

Quirky Facts

• The plant's many common names, including "tickseed," reflect local observations and uses, highlighting its cultural significance in different regions. The name "palmata" suggests a hand-like shape which may refer to the lobed leaves.

Additional Information

• Stiff Tickseed is valued for its upright form, full-bodied yellow flowers, and tolerance of dry, sandy soils.
• It is suitable for USDA Hardiness Zones 3-8.
• For further information, resources such as the Encyclopedia of Life and the University of Illinois Extension (Hort Answers) are mentioned.