Ceratocephala testiculata (syn. Ceratocephala orthoceras, Ranunculus testiculatus) is a flowering plant that is native to Eurasia. Common names include bur buttercup and curveseed butterwort. Android phone sync for mac. It is very small, usually only about an inch or two tall, but potentially growing to four inches. The flowers are small and dull yellow.
- Other Names: Bur Buttercup Ceratocephala testiculata. Non-native Species. Cut-leaved Anemone Anemone multifida. Cut-leaved Anemone Anemone multifida var.
- A small, 2‐ to 5‐inch tall plant that grows and flowers early in spring, bur buttercup produces stiff burrs that help spread this weed. It is toxic to livestock. Typical plant growing in disturbed site. Photo courtesy of Gary A. Monroe @ USDA‐NRCS PLANTS Database.
- Buttercup weeds ( Ranunculus repens ) form a creeping mat of dense foliage that can quickly overtake the lawn or a garden bed. These perennial plants, which grow in U.S. Department of Agriculture plant hardiness zones 4 through 9, bear dark green, three-segment, toothed leaves and produce yellow flowers.
Ranunculus testiculatus
Synonym:Ceratocephalus testiculatus
Burr. Sunkissed Buttercup Care
Family: Ranunculaceae – Buttercup Family
Annual herbs; dicot; 0.6” to 4” (1.5 to 10 cm) tall; hairy
Burr Sunkissed Buttercup Care
Leaves: basal; simple; deeply 3-parted; 0.12” to 1.6” (0.3 to 4 cm) long, 0.12” to 1.2” (0.3 to 3 cm) wide
Flowers: 2 to 5 yellow petals, 0.14” to 0.31” (3.5 to 8 mm) long; 5 hairy green sepals; stamens 5 to numerous; pistils 5 to many; perfect
Pollinators: other Ranunculus species are pollinated by insects
Fruits: hairy achenes; most fruits in this family are poisonous because of the volatile acrid oil - protoanemonin
Blooms in Arches National Park: March, April, May
Stronghold crusaders for mac. Habitat in Arches National Park: disturbed areas and dry areas
Burr Buttercup Picture
Location seen: Windows, Delicate Arch trail
Other: The genus name, “Ranunculus”, means “small frog” which refers to the many species of this genus that grow in moist locations. The genus name, “Ceratocephalus”, is from the Greek “keras” which means 'a horn' and the Greek “kephale” meaning 'head'. The species name, “testiculatus”, refers to the ovate and solid shape.
This plant is a weed and was introduced from Eurasia. Several species in this family are grown as ornamentals, others provide drugs, and some are poisonous.