Bidens aurea, Apache Beggarticks
Scientific Name: Bidens aurea
Common Name: Apache Beggarticks
Also Called: Arizona Beggarticks
Family: Asteraceae, Sunflower Family
Synonyms: (Bidens aurea var. wrightii, Bidens ferulaefolia, Bidens ferulifolia, Bidens heterophylla, Bidens heterophylla var. wrightii, Bidens tetragona, Coreopsis aurea, Coreopsis ferulifolia)
Status: Native, Bidens aurea has been introduced in Europe and South America where it has become naturalized.
Size: 4 to 19 to 40 inches (50-100 cm), rarely 100 inches (250 cm).
Growth Form: Forb/herb; stems erect, 4-angled, simply branched, plants glabrous young plants rarely pubescent.
Leaves: Green; petiole present, leaf blades deltate or lanceolate or oblong, pinnately lobed, margins entire or serrate.
Flower Color: Yellow, some white; flowers radiate in flat-topped panicles, ray florets 5-6, yellow, disk florets 12 to 30, corollas yellowish; phyllaries 8 to 12 and ovate to lanceolate in shape, brown with yellow margins and tips; fruit dark brown to blackish cypsela (mistakenly referred to as an achene) with barbed awns.
Flowering Season: August through September
Elevation: 3,000 to 6,000 feet (914-1829 m)
Habitat Preferences: Moist sandy soil along streams, marshes, seeps and springs.
Recorded Range: Apache Beggarticks is relatively rare in the United States where it is found primarily in southern Arizona and Apache County Arizona; it is also native to Mexico southward to Guatemala. Bidens aurea has been introduced in Europe and South America where it has become naturalized.
North America & US County Distribution Map for Bidens aurea.
U.S. Weed Information: No information available.
Invasive/Noxious Weed Information: No information available.
Wetland Indicator: In North America Bidens aurea has the following wetland designations: Arid West, OBL; Western Mountains, Valleys, and Coast, OBL.
OBL = Obligate Wetland, almost always occur in wetlands
Threatened/Endangered Information: No information available.
In the Southwestern United States: Arizona, New Mexico and Texas each haves 12 species of Bidens, California has 7 species, Nevada and Utah each have 4 species. All data approximate and subject to revision.Comments:Apache Beggarticks is a handsome wildflower in Arizona and is easy to grow in full sun in well-drained soils. Interestingly, Apache Beggarticks, which is called Arizona Beggarticks in the United Kingdom, is a popular garden species with both plants and seeds sould on-line! The genus Binens of the Asteraceae family with approximately 50 species in North America and almost 250 world-wide.
The species epithet "aurea" translated directly means "golden" a reference to the color of the flowers or phyllaries?
Bidens common names include; Beggarticks, Black Jack, Burr Marigolds, Cobbler's Pegs, Spanish Needles, Stickseeds, Tickseeds and Tickseed Sunflowers, all references to the barbed awns or pappi on the fruit.