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Ericaceae family

Crossleaf Heath Erica tetralix

Also known as: Bog Heather · Cross-leaved Heath

Crossleaf Heath is an introduced perennial shrub, found in the lower 48 states. It grows to 1.1 ft.

More about this plant

Erica tetralix, the cross-leaved heath, is a species of flowering plant in the family Ericaceae, native to western Europe. Wikipedia →

Growing & care

USDA PLANTS · TRY
Conditions
Sources · Conditions
Cold hardiness (derived) — Hardiness
Niinemets & Valladares 2006 (CC0) — Drought tolerance · Shade tolerance · Wet-soil tolerance
Hardiness
≥ zone 6 derived from its U.S. range
Drought tolerance
Low
Shade tolerance
Low
Wet-soil tolerance
Moderate waterlogging
Size & form
Sources · Size & form
TRY Plant Trait Database (CC BY 4.0) — Height · Foliage
USDA PLANTS — Lifespan
Height
1.1 ft
Lifespan
Perennial
Foliage
Evergreen needleleaf
In the garden
Herb layer — Sits in the herb of a layered food forest or polyculture.Open guide →
derived roles
Species characteristics from USDA PLANTS (public domain) + TRY (CC BY) — general guidance, not a guarantee for your exact site. Deer "browsing" is documented palatability, not a deer-proof claim.

Wildlife & pollinators

How pollinator value is scored →
❧ Caterpillar hosts ~4 caterpillar species

Erica supports ~4 caterpillar species.

Native butterfly & moth caterpillars are the base of the terrestrial food web — most songbirds rear their young almost entirely on them. As a host for native Lepidoptera this is a modest genus for introduced plants — native genera typically support far more.

Recorded feeding on Erica in North America, including:

Anarta myrtilli · owlet moth Ancylis unguicella · leafroller moth Datana drexelii · Drexel's Datana Pyla fusca · snout moth Rhopobota naevana · leafroller moth Rhopobota unipunctana · leafroller moth
+ 1 more species →
Xenolechia aethiops · twirler moth
Keystone count (genus-level) from Warren II 2026 (CC0) · Tallamy host-use records. Named species (a documented Nearctic sample, not exhaustive) from NHM HOSTS (CC0).
✦ Bees 41 bee visitors
Visitor records (observations, not exhaustive) from Noori et al. 2026 (CC BY 4.0) · GloBI →
Wildlife & visitors 1 bird · 14 nectaring

Open records of who else uses Crossleaf Heath — a generalist food-web signal, kept separate from the keystone Ecological Value.

Recorded eaten by 1 bird species (fruit, seed, browse):

Pyrrhula pyrrhula · Eurasian Bullfinch

14 adult butterfly & moth species are recorded nectaring at its flowers — the most-recorded:

Anarta myrtilli Coenonympha tullia · Common Ringlet Lycophotia porphyrea · True Lovers Knot Lycaena phlaeas · American Copper Maniola jurtina · Meadow Brown Polygonia c-album · Comma
Interaction records (observations, not exhaustive) from GloBI → (CC0). Counts are distinct species; names are the most-recorded. Common names from Wikidata (CC0).
Species thumbnails re-hosted from iNaturalist — Creative Commons, credited per image (hover for credit). Click any species to see it on iNaturalist. Not exhaustive; many taxa have no openly-licensed photo yet.
How we know this (2) Methods & honest limits
Leaf build Direct fact

We read each species’ measured specific leaf area (leaf area per unit dry weight) from the Global Spectrum dataset and band it: thin & fast (high SLA), medium, or thick & tough (low SLA). The global median is about 10 mm²/mg.

Honest limits: A species-mean from pooled measurements — individual plants vary with light and site. A broad strategy signal, not a precise per-plant figure.

Díaz, S. et al. (2022) The global spectrum of plant form and function: enhanced species-level trait dataset. Scientific Data 9:755.
Photosynthesis Direct fact

A recorded categorical fact: each species is tagged C3 (standard), C4 (heat/water-efficient) or CAM (succulent, night-time CO₂ uptake) — or a facultative combination. We only show a trait card for the noteworthy C4/CAM cases; C3 is the unremarkable majority, kept in the data but not surfaced as a card.

Kattge, J. et al. TRY plant trait database — Categorical Traits Dataset (2012).
Derived values are computed from open data by a published method — labelled, cited, and never shown as a direct observation. Full methodology →
Sources for this entry (24) Open & cited
[01] Scientific name & family — USDA PLANTS (DwCA, Zenodo 17903503)
[02] Growth habit & duration — USDA PLANTS (DwCA, Zenodo 17903503)
[03] Native status & distribution — USDA PLANTS (DwCA, Zenodo 17903503)
[04] Common name — USDA PLANTS (via GBIF)
[05] Invasive / introduced status — US-RIIS v2.0 (USGS)
[06] Wetland indicator — USACE National Wetland Plant List (2022)
[08] Description — Wikipedia (CC BY-SA)
[09] Ecological value — Warren II 2026 (CC0) · Tallamy host-use counts
[12] Functional traits — TRY Plant Trait Database (CC BY 4.0)
[13] Photosynthetic pathway — TRY Plant Trait Database (CC BY 4.0)
[14] Cold hardiness (derived) — Derived from U.S. range × USDA PHZM zones
[15] Wildlife & visitors — GloBI — Global Biotic Interactions (CC0)
[18] Other common names — Wikidata (CC0)
[19] Stress tolerance — Niinemets & Valladares 2006 (CC0)
[21] Flower-visitor value (derived) — Noori et al. 2026 (CC BY 4.0) · GloBI
[22] Caterpillar host count — Warren II 2026 (Dryad, CC0) · Tallamy host-use counts
[23] Caterpillar species — NHM HOSTS (CC0)
[24] County range — GBIF Open Data — open-licensed occurrences (CC0/CC-BY) → county
Spot an error or have a better photo? Every field links to its source, and the whole dataset is open.
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PlantKey’s data is open under CC BY-SA 4.0 — free to reuse and adapt, with attribution and the same licence. Photos keep their own per-image licence + credit (see Sources above).

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