Scientific Name: Gnaphalium uliginosum
Common Name: marsh cudweed
Family Name: Asteraceae
Origin: Central / west Asia, Europe, North America
Hardiness Zone: Zone 2: (-46 to -40 °C)
Plant Type: Annual (true), Weed (horticultural)
Mature Size: 0.1 - 0.2m x 0.1 - 0.3m (height x width)
Habit: Spreading
Form: Round
Texture: Fine
Landscape Uses: Medicinal plant
Exposure: Full sun, Part sun/part shade
Soil or Media:
Leaves: Simple, Alternate, Soft flexible, Pubescent, Linear, Oblanceolate, Entire
Flowers: Head (capitulum), Yellow, Jun-Jul-Aug
Fruit: Cypsela (achene + calyx), Brown, Jul-Aug-Sep-Oct
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.