Quercus

Narrowleaf Bluet

Houstonia tenuifolia

Native to Kentucky (estimated)

Ecological relationships

Who uses this plant?

1CaterpillarsGenus host records with ranges including KY

Genus host records with ranges including KY · Houstonia

  • Thyris maculataSpotted Thyris
Shropshire & Tallamy 2025, Lepidoptera of North America north of Mexico, ZooKeys 1261 (ODbL)
13BeesSoutheastern regional records

Southeastern regional records · Houstonia

Individual names are not available yet.

Noori, Seltmann & Orr 2026, A curated and integrated dataset for exploring global bee-plant interactions (GloBI), Zenodo, CC BY 4.0
1Specialist beesPollen specialists

Pollen specialists · Houstonia

  • Perdita pedernalensis
Smith, Bachelder, Russell, Morales, Mosher & Seltmann 2024, Bee-Specialization-Modeling v0.6.1 (specialist host table compiled from J. Fowler's pollen specialist bee lists), Zenodo, CC BY 4.0
—BirdsRecorded genus food-resource interactions; not a state feeding claim

No records yet · Ants · Beetles · Flies · Adult butterflies / moths · Other wasps · Other insects

Growing and identification

Plant details

Family
Rubiaceae

Safety has not been reviewed for this plant; check toxicity and thorns before planting.

Growing sources and scope
Also known as

Diffuse Branch Bluet; Diffuse Branched Bluet; Diffusebranch Bluet; Diffusebranched Bluet; Virginia Spiraea; Virginia or West Virginia Spiraea; West Virginia Spiraea

Conservation status

Kentucky rankNot available
Global rankGNR [G5]
KY statusNot verified
Federal statusNot verified

Conservation source Global and federal source

In your garden

Will it fit your spot?

Check this plant against your county, sun and soil moisture. Conditions are checked in your browser.

Choose a county to begin.

How to check your spot

Sources