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Harper's Buttonweed

Diodia harperi

Found in pondshores, other moist sites. Weakley, Flora of the Southeastern United States (2025), South Central edition What its natural habitat tells you

22
Good

Native to Mississippi. How scores work Is it native here?

Profile 65%

Light
Partial shade, Full sun
Soil moisture
Moist to wet
Will it fit your yard?

At a glance

Fruiting season
May to November

Not yet recorded · Height · Spread · Life cycle · Leaves · Bloom

Height and bloom: NC species account not read yet.

Spread, life cycle and leaves: no source found yet.

This plant is missing most of its facts, so Quercus is looking them up in old botany books.

Recorded in 7 Mississippi counties.

Natural habitats

Places it grows wild. Not a planting requirement. Each habitat page lists the plants and wildlife also found there.

Depression ponds and limesinks

Shallow ponds in Coastal Plain depressions, such as limesinks and the ponds in some Carolina bays, that rise and fall with the seasons.

All habitats

Ecological relationships

Who uses this plant?

What these records mean

2CaterpillarsGenus host records with ranges including MS

Genus host records with ranges including MS · Diodia

  • Spodoptera latifasciaOrange-Striped Armyworm, Velvet Armyworm Moth
  • Xylophanes tersaTersa Sphinx
Shropshire & Tallamy 2025, Lepidoptera of North America north of Mexico, ZooKeys 1261 (ODbL)
0BeesSoutheastern regional records
0Specialist beesPollen specialists
1BirdsRecorded genus food-resource interactions; not a state feeding claim

Recorded genus food-resource interactions; not a state feeding claim · Diodia

  • Colinus virginianusNorthern Bobwhite
Hurlbert, Olsen, Sawyer & Winner 2021, Avian Diet Database, Scientific Data 8: 260 (CC0)

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

Growing and identification

Plant details

Family
Rubiaceae
Fruit begins
May
Fruit ends
November

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

Growing sources and scope

Conservation status

Mississippi rankS4
Global rankG4
MS statusNot verified
Federal statusNot verified

Conservation source Global and federal source

In your garden

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Sources