Pseudolycopodiella caroliniana(L.) Holub

slender clubmoss

WFO wfo-0001116201 Accepted WFO 2026-06 8 photographs CC0 / CC BY / CC BY-SA

Plate 1 figs. a–h · 8 separate observations

Pseudolycopodiella caroliniana, photographed by Tony Rebelo
fig. a Tony Rebelo, CC BY-SA 4.0 / 2022-04-24 / obs. 197841855

Every figure is a research-grade observation under CC0, CC BY or CC BY-SA, rehosted with the photographer’s name, the licence and the observation it came from. Photographs under a NonCommercial licence are excluded from this site and are never stored, which costs us a great many pictures and is not negotiable.

The specimen a real sheet, in a real collection

Herbarium
The New York Botanical Garden
Accession
2704136
Filed as
Pseudolycopodiella caroliniana (L.) Holub
Det. by
R. C. Moran 2017-01-01
Collected
K. M. Redden 2009-05-03
Origin
GY
The sheet
View the digitised specimen (CC BY 4.0)

A real pressed plant, in a real collection, under the accession number above. Not an illustration of one. The holding institution does not serve this sheet’s image to third parties, so there is no photograph here. The record is real and the link goes to it. Where we hold no openly licensed sheet for a species this section is simply absent, and where a sheet never recorded who determined it, that field stays empty rather than being filled in. Roughly half of all herbarium sheets never recorded a determiner, which is ordinary.

Native range 24 botanical countries

Regions where Pseudolycopodiella caroliniana is native: China Southeast, Japan, Malaya, New Guinea, Sri Lanka, Alabama, Arkansas, Delaware, Florida, Georgia, Louisiana, Maryland, Massachusetts, Mississippi, New Jersey, New York, North Carolina, Pennsylvania, South Carolina, Texas, Virginia, Guyana, Haiti, Venezuela China SoutheastJapanMalayaNew GuineaSri LankaAlabamaArkansasFloridaGeorgiaLouisianaMarylandMassachusettsMississippiNew JerseyNew YorkNorth CarolinaPennsylvaniaSouth CarolinaTexasVirginiaGuyanaHaitiVenezuela Delaware
Native distribution of Pseudolycopodiella caroliniana, after Kew’s World Checklist of Vascular Plants. Introduced, extinct and doubtful records are excluded, so this is where the plant is from, not everywhere it now grows. Regions too small to draw at this scale are marked with a dot.
RegionTDWG codeContinent
Alabama ALA NORTHERN AMERICA
Arkansas ARK
Delaware DEL
Florida FLA
Georgia GEO
Louisiana LOU
Maryland MRY
Massachusetts MAS
Mississippi MSI
New Jersey NWJ
New York NWY
North Carolina NCA
Pennsylvania PEN
South Carolina SCA
Texas TEX
Virginia VRG
Malaya MLY ASIA-TROPICAL
New Guinea NWG
Sri Lanka SRL
Guyana GUY SOUTHERN AMERICA
Haiti HAI
Venezuela VEN
China Southeast CHS ASIA-TEMPERATE
Japan JAP

Region boundaries approximated from Natural Earth (public domain) and mapped to TDWG World Geographical Scheme for Recording Plant Distributions (WGSRPD) level-3 botanical countries (Brummitt 2001). Indicative, not the official WGSRPD geometry.

Where it actually grows measured, from 438 observations

Condition 5th percentile Median 95th percentile
Coldest month, mean daily low -2.9 °C 6.9 °C 16.7 °C
Warmest month, mean daily high 22.6 °C 30.3 °C 32.6 °C
Annual rainfall 655 mm 1,470 mm 1,890 mm
Rainfall in the driest quarter 77 mm 271 mm 360 mm

It is found where winters bring light frost. This is not care advice and it is not a forecast. It is a measurement: we sampled the climate at every one of the 438 research-grade observations of Pseudolycopodiella caroliniana that carry a coordinate, and this is the range those places actually span. The 5th and 95th percentiles are used rather than the minimum and maximum, because a single cultivated specimen in a heated conservatory should not widen a tropical plant's range to the Arctic.

This is not a hardiness zone. A USDA zone is the average annual extreme minimum temperature. The figure above is the mean daily minimum of the coldest month, which is a different quantity and is typically far warmer. Reading one as the other would place a plant several zones too warm, so we do not publish a hardiness zone, because we do not have one.

Also published as 8 synonyms

A synonym is not an error. It is a record of botanists disagreeing, in print, about where this plant belongs. Each of these was somebody’s considered answer.

  • Lepidotis caroliniana (L.) P.Beauv.
  • Lycopodiella caroliniana (L.) Pic.Serm.
  • Lycopodiella caroliniana var. caroliniana
  • Lycopodium carolinianum L.
  • Lycopodium carolinianum var. brevipedunculatum Spring
  • Lycopodium carolinianum var. longepedunculatum Spring
  • Lycopodium carolinianum var. springii Christ
  • Lycopodium carolinianum var. typicum Hassl.

Sourcesevery claim on this page

  1. World Flora Online Plant List. accepted name, authority, classification. CC0. Retrieved 2026-07-12.
  2. iNaturalist. photographs and flowering annotations, CC0 / CC BY / CC BY-SA only. per photograph. Retrieved 2026-06-27.
  3. USDA PLANTS Database. common name, checklist symbol LYCA5. public domain. Retrieved 2026-07-13.
  4. Kew, World Checklist of Vascular Plants (WCVP v16). native distribution by TDWG level-3 botanical country, and life form. CC BY 3.0. Retrieved 2026-06-04.

We publish what we can source and we say so when we cannot. This page has no care advice and no toxicity claim, because we do not yet have those from a source we can cite.