Manatee Dewberry
Rubus trivialis
- Native to:
- Mexico, United States
Wikimedia: Alex Abair (www.inaturalist.org)





Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Rosaceae
- Genus:
- Rubus
- Species:
- Rubus trivialis
- USDA Symbol:
- RULU
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Subshrub
- Height:
- 50 cm
- Light Requirements:
- Full Sun,Part Shade
- Drought Tolerance:
- Medium
- Bloom Months:
- mar,apr,may
- Bloom Colors:
- white, pink
- Ground Cover:
- Yes
Wildlife Benefits
- Bees:
- ★☆☆☆☆ Documented bee visitation (GBIF)
- Butterflies & Moths:
- ★☆☆☆☆ Documented Lepidoptera association (GBIF)
- Caterpillars:
- ★☆☆☆☆ Recorded caterpillar host plant (HOSTS Database)
Keystone Species Ranking
- Caterpillar Keystone:
- ★★★★★ Butterfly & moth species supported by this genus (NWF)
Host Plant for Caterpillars
Old Man Dart (Agrotis vetusta)
Reported Fauna Sightings
Bees: ⚠️Western honey bee (Apis mellifera) Moths:Coptotriche aenea, Eight-spotted Forester (Alypia octomaculata)
Garden & Ecology Notes
- Wildlife Value:
- birds, small mammals, butterflies, bees
- Fire Ecology:
- Fire adapted — tolerates or benefits from fire
- Fire Notes:
- Resprouts vigorously from roots and stolons following fire. Trailing stems root at nodes allowing rapid post-fire recovery.
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 90–120 days
- Scarification:
- Seed coat scarification required before sowing
- Germination Time:
- 30–90 days
- Notes:
- Seeds have hard seed coat requiring scarification; cold stratification improves germination rates. Germination can be erratic.
Pre-treatment: Cold-moist stratification for 30 days at 1–5°C (34–41°F).
Source: Claude AI