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Oahu Riverhemp (Sesbania tomentosa)

Sesbania Tomentosa, or more commonly know as Oahu Riverhemp, is a shrub with green foliage and red flowers of the genus Sesbania. It has a moderate growth rate and a height of 2 feet at maturity. Its duration is perennial which means it will grow year after year. It's active growth period is year round, blooms during indeterminate and is somewhat tolerant of shade. Sesbania Tomentosa or Oahu Riverhemp's floral region is Hawaii and Puerto Rico

  • Category: Dicot
  • Genus: Sesbania
  • Family: Fabaceae
  • Order: Fabales
  • Class: Magnoliopsida
  • Division: Magnoliophyta
  • Duration: Perennial
  • Growth Habit: Shrub
  • Native Status: HI (N) PR (I)
  • Federal T/E Status: Endangered
  • Federal T/E Common Name: Oahu riverhemp
  • National Wetland Indicator Status: UPL NI
  • Regional Wetland Indicator Status: C(NI) H(UPL)
  • Active Growth Period: Year Round
  • Allelopath: No
  • Bloat: None
  • C:N Ratio: Low
  • Coppice Potential: No
  • Fall Conspicuous: No
  • Fire Resistance: No
  • Flower Color: Red
  • Flower Conspicuous: Yes
  • Foliage Color: Green
  • Foliage Porosity Summer: Moderate
  • Foliage Porosity Winter: Moderate
  • Foliage Texture: Fine
  • Fruit/Seed Color: Brown
  • Fruit/Seed Conspicuous: Yes
  • Growth Form: Single Stem
  • Growth Rate: Moderate
  • Height at 20 Years Maximum (feet): 2
  • Height Mature (feet): 2
  • Leaf Retention: Yes
  • Lifespan: Moderate
  • Low Growing Grass: No
  • Nitrogen Fixation: Medium
  • Resprout Ability: Yes
  • Shape and Orientation: Prostrate
  • Toxicity: None
  • Adapted to Coarse Textured Soils: Yes
  • Adapted to Fine Textured Soils: No
  • Adapted to Medium Textured Soils: Yes
  • Anaerobic Tolerance: None
  • CaCO3 Tolerance: High
  • Cold Stratification Required: No
  • Drought Tolerance: High
  • Fertility Requirement: Medium
  • Fire Tolerance: Medium
  • Frost Free Days Minimum: 365
  • Hedge Tolerance: Medium
  • Moisture Use: Medium
  • pH (Minimum): 6
  • pH (Maximum): 8
  • Planting Density per Acre Minimum: 400
  • Planting Density per Acre Maximum: 1600
  • Precipitation (Minimum): 20
  • Precipitation (Maximum): 40
  • Root Depth Minimum (inches): 18
  • Salinity Tolerance: High
  • Shade Tolerance: Intermediate
  • Temperature Minimum (°F): 50
  • Bloom Period: Indeterminate
  • Commercial Availability: Routinely Available
  • Fruit/Seed Abundance: Medium
  • Fruit/Seed Period Begin: Year Round
  • Fruit/Seed Period End: Year Round
  • Fruit/Seed Persistence: Yes
  • Propagated by Bare Root: Yes
  • Propagated by Bulbs: No
  • Propagated by Container: Yes
  • Propagated by Corms: No
  • Propagated by Cuttings: No
  • Propagated by Seed: No
  • Propagated by Sod: No
  • Propagated by Sprigs: No
  • Propagated by Tubers: No
  • Seed per Pound: 22650
  • Seed Spread Rate: Slow
  • Seedling Vigor: Medium
  • Small Grain: No
  • Vegetative Spread Rate: None





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