Virginia Waterleaf (Hydrophyllum virginianum): Quercus Score 24 in North Carolina

24

Good

Quercus Score for North Carolina · 5 of 5 factor datasets used; missing records do not prove absence (genus-level)

Native. The Hydrophyllum genus feeds 1 caterpillar species in NC, draws 7 bee species in the Southeast; no bird feeding interactions are recorded for this genus in the North American dataset. Few records for birds. Adjusted -2 because this species is less common in NC than others in its genus. Includes +2 provisional points for additional documented insect groups.

Insect resources, birds and habitat

Bars show recorded counts on a linear scale. Each category runs from zero to its largest count in this NC plant catalog; the same scale applies across plant pages. Compare plants within a category, not bar lengths across categories. Zero records may mean missing research. Growth form is shown as text.

Caterpillars

1 spp. on genus (NC)
Scale: 0–496

Bees

7 spp. on genus (Southeast)
Scale: 0–176

Specialists

0 specialist bee spp. (East)
Scale: 0–45

Birds

0 recorded bird spp. (N. America)
Scale: 0–58

Structure

Forb/herb

Soil

not yet scored

Additional insect evidence

Bar length follows recorded-name count on the displayed scale, not ecological importance. Unknown is not zero support. Flower visits do not confirm feeding or pollination. Named insects may include historical or unresolved names.

Ants

unknown: no matched records
Scale: 0–20

Beetles

unknown: no matched records
Scale: 0–12

Flies

2 recorded names; flower visits (Illinois)
Scale: 0–74

Adult butterflies / moths

unknown: no matched records
Scale: 0–15

Other wasps

1 recorded names; flower visits (Illinois)
Scale: 0–75

Other insects

unknown: no matched records
Scale: 0–5

Provisional additional insect credit: +2 (maximum 5). Scoring rule and limitations. Study references and interaction records are included in this plant’s data record.

Fit for your county

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Overwintering: no reviewed hardiness guidance loaded. Heat tolerance is not assessed.

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How Fit works · Agent packet

NC status (state rank)	S4 [S2?]
Grows in	wet or dry ground (wetland occurrence proxy: FAC; not a measured watering requirement)
Soil pH range	no data
Light	no data
Recorded in NC	Mountains, Piedmont; recorded in 17 counties (USDA)
Single-host caterpillars on genus	0
How the number was set	Base score 26, adjusted -2 for how common the species is in NC. Scoring uses relative ranks; display bars show counts. Caterpillar, bee and bird data are by genus.

Sources

Machine-readable: hydrophyllum-virginianum.json. Cite as: Quercus Score v0.6.4, Hydrophyllum virginianum, North Carolina, 2026-09-24.