Lycopodiella appressa(Chapm.) Cranfill

Southern Bog-clubmosssouthern bog clubmoss

WFO wfo-0001116202 Accepted WFO 2026-06 8 photographs CC0 / CC BY / CC BY-SA

Plate 1 figs. a–h · 8 separate observations

Lycopodiella appressa, photographed by Reid Hardin
fig. a Reid Hardin, CC BY 4.0 / 2022-04-30 / obs. 194522401
Lycopodiella appressa, photographed by geosesarma
fig. b geosesarma, CC BY 4.0 / obs. 170642439
Lycopodiella appressa, photographed by Eric Knight
fig. c Eric Knight, CC BY 4.0 / obs. 161604942
Lycopodiella appressa, photographed by Chase Mathey
fig. d Chase Mathey, CC BY 4.0 / obs. 143230477
Lycopodiella appressa, photographed by Tom Field
fig. e Tom Field, CC BY 4.0 / obs. 156244602
Lycopodiella appressa, photographed by Darren Oh
fig. f Darren Oh, CC BY-SA 4.0 / obs. 130875450
Lycopodiella appressa, photographed by Matt Berger
fig. g Matt Berger, CC BY 4.0 / obs. 115360632
Lycopodiella appressa, photographed by agbelliveau
fig. h agbelliveau, CC0 1.0 / obs. 101088432

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
Smithsonian, US National Herbarium
Accession
US 3677635
Filed as
Lycopodiella appressa (Chapm.) Cranfill
Det. by
Kral, Robert
Collected
R. Kral 1970-09-05
Origin
US
The sheet
View the digitised specimen (CC0 1.0)

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 33 botanical countries

Regions where Lycopodiella appressa is native: Alabama, Arkansas, Connecticut, Delaware, District of Columbia, Florida, Georgia, Illinois, Indiana, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Mississippi, New Hampshire, New Jersey, New York, Newfoundland, North Carolina, Nova Scotia, Oklahoma, Pennsylvania, Prince Edward I., Rhode I., South Carolina, Tennessee, Texas, Vermont, Virginia, West Virginia, Cuba AlabamaArkansasConnecticutFloridaGeorgiaIllinoisIndianaKansasKentuckyLouisianaMaineMarylandMassachusettsMississippiNew HampshireNew JerseyNew YorkNewfoundlandNorth CarolinaNova ScotiaOklahomaPennsylvaniaPrince Edward I.South CarolinaTennesseeTexasVermontVirginiaWest VirginiaCuba DelawareDistrict of ColumbiaRhode I.
Native distribution of Lycopodiella appressa, 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
Connecticut CNT
Delaware DEL
District of Columbia WDC
Florida FLA
Georgia GEO
Illinois ILL
Indiana INI
Kansas KAN
Kentucky KTY
Louisiana LOU
Maine MAI
Maryland MRY
Massachusetts MAS
Mississippi MSI
New Hampshire NWH
New Jersey NWJ
New York NWY
Newfoundland NFL
North Carolina NCA
Nova Scotia NSC
Oklahoma OKL
Pennsylvania PEN
Prince Edward I. PEI
Rhode I. RHO
South Carolina SCA
Tennessee TEN
Texas TEX
Vermont VER
Virginia VRG
West Virginia WVA
Cuba CUB SOUTHERN AMERICA

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 544 observations

Condition 5th percentile Median 95th percentile
Coldest month, mean daily low -8.4 °C 6.1 °C 16.4 °C
Warmest month, mean daily high 23.3 °C 31.2 °C 33.8 °C
Annual rainfall 1,154 mm 1,402 mm 1,668 mm
Rainfall in the driest quarter 162 mm 263 mm 347 mm

It is found where winters bring hard 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 544 research-grade observations of Lycopodiella appressa 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 13 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.

  • Lycopodiella bigelowii (Tuck.) Holub
  • Lycopodium adpressum f. polyclavatum McDonald
  • Lycopodium alopecuroides f. appressum (Chapm.) Clute
  • Lycopodium alopecuroides f. polyclavatum (McDonald) Clute
  • Lycopodium alopecuroides subsp. appressum (Chapm.) Clute
  • Lycopodium alopecuroides var. appressum Chapm.
  • Lycopodium alopecuroides var. chapmanii Clute
  • Lycopodium appressum (Chapm.) F.E.Lloyd & Underw.
  • Lycopodium appressum f. polyclavatum McDonald
  • Lycopodium chapmanii Underw. ex Maxon
  • Lycopodium inundatum f. polyclavatum (McDonald) Fernald
  • Lycopodium inundatum var. appressum Chapm.
  • Lycopodium inundatum var. bigelovii Tuck.

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. Wikidata. common name (P1843), joined on the World Flora Online identifier (P7715). CC0. 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.