Scientific Name:
Bidens frondosa
Pronunciation:
BY-denz frond-OH-suh
Common Name:
devil's beggarticks
Family Name:
Asteraceae
Plant Type:
Annual (true), Weed (horticultural)
Key ID Features:
Stems square in cross-section and may branch near the top; leaves opposite, pinnately conpounnd with 3(-5) leaflets, most lanceolate, 4–10cm long x 1-3cm wide, margin serrate; heads usually many per shoot, 8-12mm wide, surrounded by green bracts of unequal size and with hairy margins, disk florets orange and about 2mm long, ray florets 0-5 per head, small, yellow, and 8-12mm long; achenes 5-9mm long, dark brown to nearly black, with two hornlike barbed pappi at one end.
Habit:
Upright
Form:
Pyramidal - widely
Texture:
Medium - fine
Mature Height:
0.7 - 1.3m
Mature Spread:
1.0 - 1.5m
Growth Rate:
Fast
Origin:
North America
Hardiness Rating:
Zone 3: (-40 to -34 °C)
Exposure:
Full sun, Part sun/part shade
Soil/Growing Medium:
Bog, Humus rich, Rocky or gravelly or dry, Well-drained
Landscape Uses:
Medicinal plant
Additional Info:
Leaf Morphology:
Form:
Compound
Arrangement:
Opposite
Texture/Venation:
Soft flexible, Pinnate venation
Surfaces:
Glabrous
Colour in Fall:
Yellow, Red
Shapes:
Lanceolate
Apices:
Acuminate
Bases:
Cuneate, Oblique (uneven)
Margins:
Serrate
Inflorescence Type:
Head (capitulum)
Flower Morphology:
Flowers perfect
Number Of Petals:
5
Corolla Shape:
Tubular
Ovary Position:
Superior
Colour (petals):
Not showy, Orange, Yellow
Flower Scent:
None
Flower Time at Peak:
Aug, Sep
Fruit Type:
Achene
Fruit Colour:
Black
Fruiting Time:
Sep, Oct
Additional Info:
Not showy
Bark or Stem Colour:
Red, Tan, Black
Organ Modifications:
Fibrous-like roots
Maintenance:
High
Pest Susceptibility:
Aphids or adelgids, Beetles or weevils, Leaf miner insect (Disease resistant)
Course(s):
- not used (on campus)
Location(s):
- (BCE) Boulevard (Circular) Eastend
- (PDW) PonD West