The Total Vascular Flora of Singapore Online

Porophyllum ruderale (Jacq.) Cass.

Recent Synonyms: None relevant.

Status: Exotic; Naturalised.

Growth Form or Habit: Climber.

Tanah Merah; Scrubland; 2010.

More pictures can be found at

(1) The Plant Observatory website

Youngia japonica (L.) DC.

Recent Synonyms: None relevant.

Status: Exotic; Naturalised.

Growth Form or Habit: Herb.

Punggol End; Lawn; 2010.

Punggol End; Lawn; 2010.

Punggol End; Lawn; 2010.

More pictures can be found at

(1) Urban Forest website

(2) The Plant Observatory website

Eclipta prostrata (L.) L.

Recent Synonyms: None relevant.

Status: Exotic; Naturalised.

Growth Form or Habit: Herb.

Hougang; Lawn; 2009.

Hougang; Lawn; 2009.

More pictures can be found at

(1) Urban Forest website

Vernonia cinerea (L.) Less.

Recent Synonyms: None relevant.

Status: Crytogenic.

Growth Form or Habit: Herb.

Hougang; Lawn; 2008.

Hougang; Lawn; 2008.

Hougang; Lawn; 2008.

Hougang; Lawn; 2008.

Other Information:

Common Name: Common Vernonia.

More pictures can be found at

(1) Urban Forest website

Tridax procumbens L.

Recent Synonyms: None relevant.

Status: Exotic; Naturalised.

Growth Form or Habit: Herb.

Hougang; Lawn; 2008.

Hougang; Lawn; 2008.

Other Information:

Common Name: Coat Button.

More pictures can be found at

(1) Urban Forest website

(2) The Plant Observatory website

Emilia sonchifolia (L.) DC.

Recent Synonyms: None relevant.

Status: Crytogenic.

Growth Form or Habit: Herb.

Hougang; Lawn; 2008.

Hougang; Lawn; 2008.

Hougang; Lawn; 2008.

Other Information:

Common Name: Cupid’s Shaving Brush

More pictures can be found at

(1) Urban Forest website

Melanthera biflora (L.) Wild

Recent Synonyms: Wollastonia biflora (L.) DC.; Wedelia biflora (L.) DC.

Status: Native; Common. Cultivated.

Growth Form or Habit: Shrub.

Sungei Punggol; Mangrove; 2010.

More pictures can be found at

(1) The Plant Observatory website

Gymnanthemum amygdalinum (Delile) Sch. Bip. ex Walp.

Recent Synonyms: Vernonia amygdalina Delile

Status: Exotic; Cultivated only.

Kallang Area, 2010.

Growth Form or Habit: Shrub.

Bidens alba (L.) DC.

Recent Synonyms: None relevant.

Status: Exotic; Cultivated only.

Growth Form or Habit: Herb.

Pulau Ubin, 2008.

More Information:

Similar Species: Bidens pilosa has more ray florets then Bidens alba.

More pictures can be found at

(1) The Plant Observatory website

Bidens pilosa (L.) DC.

Recent Synonyms: None relevant.

Status: Exotic; Naturalised.

Growth Form or Habit: Herb.

Murai Farmway, 2010.

More Information:

Similar Species: Bidens pilosa has more ray florets then Bidens alba.