© Drawnnear · CC BY-SA 3.0
Wikimedia Commons — CC, credited & licensed per image
Lycopodiaceae family
Rare Clubmoss Lycopodium obscurum
Native
Rare Clubmoss is a perennial clubmoss native to Canada and the lower 48 states.
Growing & care
USDA PLANTS · TRY Conditions
Sources · Conditions
Cold hardiness (derived) — Hardiness
- Hardiness
- ≥ zone 5 derived from its U.S. range
Size & form
Sources · Size & form
USDA PLANTS — Lifespan
TRY Plant Trait Database (CC BY 4.0) — Foliage
- Lifespan
- Perennial
- Foliage
- Broadleaf
In the garden
Shrub layer — Sits in the shrub of a layered food forest or polyculture.Open guide →
derived roles The garden year bloom → fruit → fall colour
J
F
M
A
M
J
J
A
S
O
N
D
Bloom
Bloom (the flower's colour)
Bloom · Sep — 10 obs · Herbarium specimens — Park et al. 2023 (CC BY 4.0)
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 Documented caterpillar host
Recorded feeding on Lycopodium in North America, including:
Named species (a documented Nearctic sample, not exhaustive) from NHM HOSTS (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.
Frequently grows with
Across 33 U.S. vegetation-survey plots that recorded Rare Clubmoss, these catalog species turned up most often in the same plot — a real field co-occurrence signal, not a planting prescription.
Wild Sarsaparilla · 88% Bunchberry Dogwood · 88% Beaked Hazelnut · 88% Canada Mayflower · 88% Paper Birch · 85% Bluebead · 85% Balsam Fir · 76% Northern Bush Honeysuckle · 73%
"%" = share of this plant's plots that also held the species. From
sPlotOpen → (Sabatini et al. 2021, CC BY 4.0) — open vegetation plots: wild community composition, not garden design.
Sources for this entry (13) 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 — USDA PLANTS (DwCA, Zenodo 17903503) — native status
[06] Photos — Wikimedia Commons — CC, credited per image
[07] Ecological value — GloBI
[08] Bloom period — Herbarium specimens — Park et al. 2023 (CC BY 4.0)
[09] Foliage — TRY Plant Trait Database (CC BY 4.0)
[10] Cold hardiness (derived) — Derived from U.S. range × USDA PHZM zones
[11] Chromosomes — ChromoDB — IAPT/IOPB chromosome data series (Zenodo, CC BY 4.0)
[12] Caterpillar species — NHM HOSTS (CC0)
[13] Grows with — sPlotOpen — Sabatini et al. 2021 (iDiv, CC BY 4.0)
Spot an error or have a better photo? Every field links to its source, and the whole dataset is open.
Cite this page Open data, please attribute
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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