Bristly Locust

Robinia hispida

Native to:
United States

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Fabaceae
Genus:
Robinia
Species:
Robinia hispida
USDA Symbol:
ROHI

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Shrub , Tree
Height:
300 cm
Light Requirements:
Full Sun
Drought Tolerance:
High
Bloom Months:
may,jun
Bloom Colors:
pink, rose
Landscaping Shrub:
Yes

Wildlife Benefits

Bees:
★☆☆☆☆ Documented bee visitation (GBIF)
Butterflies & Moths:
★☆☆☆☆ Documented Lepidoptera association (GBIF)
Caterpillars:
★★☆☆☆ Recorded caterpillar host plant (HOSTS Database)
Hummingbirds:
★☆☆☆☆ Documented hummingbird visits (GBIF)

Keystone Species Ranking

Caterpillar Keystone:
★★★★☆ Butterfly & moth species supported by this genus (NWF)

Host Plant for Caterpillars

Banded Tussock Moth (Halysidota tessellaris), Filatima pseudacaciella, Io moth (Automeris io), locust leafminer (Phyllonorycter robiniella), locust leafminer (Parectopa robiniella), Nephopterix subcaesiella, oak leafminer (Chrysaster ostensackenella), Silver-spotted Skipper (Epargyreus clarus)

Reported Fauna Sightings

Moths:Black-spotted prominent (Dasylophia anguina), locust leafminer (Parectopa robiniella), Macrosaccus robiniella

Garden & Ecology Notes

Wildlife Value:
bees, butterflies, hummingbirds
Deer Resistant:
Yes
Fragrant:
Yes
Fall Color:
yellow
Fire Ecology:
Fire adapted — tolerates or benefits from fire
Fire Notes:
Resprouts vigorously from root suckers after fire or mechanical damage. Suckering habit can be aggressive.

Soil Requirements

Soil Type:
rich, well-drained loamy soil
pH:
5.5 - 7.0 (slightly acidic to neutral)
Drainage:
excellent drainage required
Moisture:
dry to moderate
Notes:
prefers open woodlands and rocky slopes

Propagation & Germination

Stratification:
None required
Scarification:
Seed coat scarification required before sowing
Germination Time:
7–21 days
Notes:
Seeds require scarification (mechanical or hot water treatment) to break hard seed coat. Germinates readily once coat is breached.

The above propagation data sourced from Claude AI

Pre-treatment: None required

Establishment: Plants can be found on dry, well-drained, moist, sunny or shaded areas. In the Great Smoky Mountains National Park, plants were found on ridges of cliffs on fairly dry soils. Bristly locust is found throughout most of the continental United States, except for Idaho, Montana, North and South Dakota, Colorado, Nevada and Arizona.

Source: npn.rngr.net