Scientific Name:
Gnaphalium uliginosum
Pronunciation:
naf-FAY-lee-um ew-li-gi-NO-sum
Common Name:
marsh cudweed
Family Name:
Asteraceae
Plant Type:
Annual (true), Weed (horticultural)
Key ID Features:
Highly branched annual to 20cm tall, common in sidewalk cracks or disturbed moist acidic soils; leaves opposite, oblanceolate, velvety short hairs, grayish light green, mostly 1-4cm long x 2-3.5mm wide; heads yellow, only 2-3mm wide, in terminal clusters of 3-10.
Habit:
Spreading
Form:
Round
Texture:
Fine
Mature Height:
0.1 - 0.2m
Mature Spread:
0.1 - 0.3m
Growth Rate:
Fast
Origin:
Central / west Asia, Europe, North America
Hardiness Rating:
Zone 2: (-46 to -40 °C)
Exposure:
Full sun, Part sun/part shade
Soil/Growing Medium:
Landscape Uses:
Medicinal plant
Additional Info:
Leaf Morphology:
Form:
Simple
Arrangement:
Alternate
Texture/Venation:
Soft flexible
Surfaces:
Pubescent
Colour in Summer:
Green, Silver / Grayish
Shapes:
Linear, Oblanceolate
Margins:
Entire
Inflorescence Type:
Head (capitulum)
Flower Morphology:
Flowers perfect
Corolla Shape:
Tubular
Ovary Position:
Inferior
Colour (petals):
Not showy, Yellow
Flower Time at Peak:
Jun, Jul, Aug
Fruit Type:
Cypsela (achene + calyx)
Fruit Colour:
Brown
Fruiting Time:
Jul, Aug, Sep, Oct
Additional Info:
Not showy,
Bark or Stem Colour:
White, Green
Pest Susceptibility:
(Drought tolerant)
Course(s):
- not used (on campus)
Location(s):
- (BCE) Boulevard (Circular) Eastend : along horstail path
- (WLG) WoodLand Garden