Rough False Pennyroyal
Hedeoma hispida
Found in prairies and grasslands; roadsides, fields and disturbed ground; granite and other acidic rock outcrops. Weakley, Flora of the Southeastern United States (2025), South Central edition What its natural habitat tells you
Native to Mississippi (estimated). How scores work Is it native here?
Profile 88%
- Height
- 3–16 inches
- Light
- Partial shade, Full sun
- Soil moisture
- Dry to moist
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At a glance
- Life cycle
- Annual
- Bloom
- May to August
Not yet recorded · Spread · Leaves
Recorded in 51 Mississippi counties.
Natural habitats
Places it grows wild. Not a planting requirement. Each habitat page lists the plants and wildlife also found there.
Open, grass-dominated places kept open by fire, grazing or thin soil, from tallgrass prairie to Piedmont prairies.
Roadsides, fields and disturbed ground
Ground opened by people: roadsides, old fields, pastures, fencerows and lots.
Granite and other acidic rock outcrops
Bare or thin-soil rock on granite, gneiss, sandstone, quartzite and similar acidic rock, including granite flatrocks and domes.
Who uses this plant?
2CaterpillarsGenus host records with ranges including MS
Genus host records with ranges including MS · Hedeoma
- Hypena scabraGreen Cloverworm Bomolocha, Black Snout
- Lintneria eremitusHermit Sphinx
0BeesSoutheastern regional records
0Specialist beesPollen specialists
3BirdsRecorded genus food-resource interactions; not a state feeding claim
Recorded genus food-resource interactions; not a state feeding claim · Hedeoma
- Agelaius phoeniceusRed-winged Blackbird
- Molothrus aterBrown-headed Cowbird
- Sturnus vulgarisEuropean Starling
Direct food only: birds recorded eating this genus across North America. Caterpillars on host plants also feed nesting birds. NC Native Plant Society: butterfly gardening
No records yet · Ants · Beetles · Flies · Adult butterflies / moths · Other wasps · Other insects
Plant details
- Family
- Lamiaceae
- Flower color
- Blue or purple
Safety has not been reviewed for this plant; check toxicity and thorns before planting.
Growing sources and scope
- Bloom · “May to August” · Weakley, Flora of the Southeastern United States (2025), Carolinas & Georgia edition · Carolinas and Georgia
- Flower color · “Blue or purple” · Lady Bird Johnson Wildflower Center
- Height · “3–16 inches” · Minnesota Wildflowers
- Life cycle · “Annual” · Minnesota Wildflowers
- Light · “Partial shade; Full sun (documented habitat)” · Weakley, Flora of the Southeastern United States (2025), Carolinas & Georgia edition · Carolinas and Georgia
- Soil · “Dry; Moist (documented habitat)” · Weakley, Flora of the Southeastern United States (2025), Carolinas & Georgia edition · Carolinas and Georgia
Also known as
Rough Pennyroyal
Conservation status
| Mississippi rank | SNR |
|---|---|
| Global rank | G5 |
| MS status | Not verified |
| Federal status | Not verified |
Will it fit your yard?
Check this plant against your county, sun and soil moisture. Conditions are checked in your browser.
Sources
- Weakley, Flora of the Southeastern United States (2025), South Central edition
- USDA PLANTS
- Mississippi occurrence source
- Shropshire & Tallamy 2025, Lepidoptera of North America north of Mexico, ZooKeys 1261 (ODbL)
- Noori, Seltmann & Orr 2026, A curated and integrated dataset for exploring global bee-plant interactions (GloBI), Zenodo, CC BY 4.0
- 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
- Hurlbert, Olsen, Sawyer & Winner 2021, Avian Diet Database, Scientific Data 8: 260 (CC0)
- Narango, Tallamy & Shropshire 2020, Few keystone plant genera support the majority of Lepidoptera species, Nature Communications