Bidens pilosa

(Hidayat & Abdurrahman, 2017)

Kigdom           : Plantae

Phylum            : Tracheophyta

Classis             : Magnoliopsida         

Ordo                : Asterales

Familia            : Asteraceae

Genus              : Bidens

(Hidayat & Abdurrahman, 2017)

Species            : Bidens pilosa


Local Name
Ketul/Ajeran


Description

(Hidayat & Abdurrahman, 2017)

Bidens pilosa is an annual plant producing an erect, much-branched stem up to 100cm tall, though the plant can often flower, seed and then die when much smaller. The plant is gathered from the wild for local use as a food and medicine. In parts of Africa, the plant is allowed to remain as a weed in cultivated ground, and it is also sometimes cultivated

(Hidayat & Abdurrahman, 2017)

(Hidayat & Abdurrahman, 2017)

Annual, erect herb up to 100 cm tall, with slender, stiff and 4-angled stems and spreading branches. Leaves decussately opposite, pinnately 3–5-foliolate, up to 15(–20) cm long, sometimes lower leaves simple, without stipules; leaflets with short petiolules, blade ovate to ovate-lanceolate, margins usually serrate or crenate-serrate, terminal leaflet larger than lateral leaflets. Inflorescence an axillary or terminal head 6–12 mm in diameter, solitary or arranged in lax cymes; outer involucral bracts 7–10, spatulate, 3–4 mm long, reflexed at anthesis, inner ones ovate-lanceolate. Ray flowers absent or 4–8, ligulate, sterile, corolla 7–15 mm long, white to yellow or pinkish; disk flowers tubular, bisexual, with 3.5–5 mm long, yellow corolla; stamens with fused anthers; ovary inferior, 1-celled, style bifid. Fruit a linear achene 4–13 mm long, 4–6-ribbed, with 2–3(–5) retrorsely barbed bristles of 2–4 mm long. Seedling with epigeal germination; hypocotyl elongated; cotyledons strap-shaped to spatulate 

(Hidayat & Abdurrahman, 2017)

Bidens, with its over 200 species, belongs to the tribe Heliantheae and is closely related to Coreopsis, with which some authors advocate uniting it. The taxonomy of Bidens is still unsatisfactory. Bidens pilosa is a very variable species: plants are more or less erect, leaves simple to highly dissected, heads discoid to radiate, ray flowers yellow, pinkish or white and short to long, achenes awnless or with 2–5 bristles. Different ploidy levels seem to play a role. The distribution throughout S. America, C. America and the Caribbean to southern N. America. Widely naturalized elsewhere.

Benefit
Human food and beverage: Beverage base
Materials: Pesticide
Medicinal, pharmaceutical: Traditional/folklore


Location in UPI
UPI Isola Building