- Lance-leaf tickseed, Long-stalk Tickseed, Sand coreopsis, Sand tickseed
- Coreopsis crassifolia, C. heterogyna
- An herbaceous perennial, 2-3 feet tall. Plants have a clumplike habit, with erect flower stems.
- few actually paired
- some in tufts
- mostly on lower half of stem
- linear to oblanceolate
- some with 2 basal prongs
- Eight yellow ray flowers with four deep lobes at the tips. Scape-like flower stalks.
- dark brown
- curved or semi-circular
- poor soils
- dry sandy
- wind and water dispersed seeds
- also through dumping of garden waste and contaminated soil
Key ID Features:
- yellow daisy-like flower
- 8 petals with 4 lobes at tips
- Large flowered coreopsis (Coreopsis graniflora) is very similar but is taller (about 3 feet) and has leaves the entire length of the stem.
- While this species is native to central and southeastern United States, it is not native to the New England area. Due to its dense clumping habit and prolific self-seeding it can crowd out native plants and reduce the success rate of native seed germination. It is commonly planted in yards and gardens, but care should be taken as the plant easily naturalizes as an invasive self-seeder. The wind and water spread seeds are the primary cause for dispersal of this plant, but contaminated garden soil and garden waste dumping additionally contribute to its wide range establishment.
- On Nantucket, this species is still heavily planted, and is escaping from cultivation. Seems to persist in grasslands but not visibly outcompeting the native flora.
Growth Form: Herb
Origin: Central United States, Southeastern United States
Level of Invasiveness for Nantucket: Do not list at this time
Level of Invasiveness for Massachusetts: Not evaluated
Massachusetts Cultivation Restrictions: no