What’s a dichotomous key?
  Help
  
    
      
      
    
    
    
    
  
  - Group 1Lycophytes, Monilophytes
- Group 2Gymnosperms
- Group 3Monocots
- Group 4Woody angiosperms with opposite or whorled leaves
- Group 5Woody angiosperms with alternate leaves
- Group 6Herbaceous angiosperms with inferior ovaries
- Group 7Herbaceous angiosperms with superior ovaries and zygomorphic flowers
- Group 8Herbaceous angiosperms with superior ovaries, actinomorphic flowers, and 2 or more distinct carpels
- Group 9Herbaceous angiosperms with superior ovaries, actinomorphic flowers, connate petals, and a solitary carpel or 2 or more connate carpels
- Group 10Herbaceous angiosperms with superior ovaries, actinomorphic flowers, distinct petals or the petals lacking, and 2 or more connate carpels
- You are here:
- Dichotomous Key
- Hypericaceae
- Triadenum
Triadenum
See list of 2 species in this genus- 
      
    
  
    
      
      1a. Sepals 5–8 mm long, acute to acuminate at the apex; petals 8–10 mm long; styles 2–3 mm long; capsules gradually tapering to the apex
- 
      
    
  
    
      
      1b. Sepals 3–5 mm long, obtuse to rounded at the apex; petals 5–8 mm long; styles 0.5–1.5 mm long; capsules somewhat abruptly tapering to the apex
   Show photos of:  
  
    Each photo represents one species in this genus.
   Show photos of:  
  
    Each photo represents one species in this genus.