Huperzia porophila(F.E.Lloyd & Underw.) Holub

Rock Club MossRock ClubmossRock Firmossrock clubmoss

WFO wfo-0001116195 Accepted WFO 2026-06 8 photographs CC0 / CC BY / CC BY-SA

Plate 1 figs. a–h · 8 separate observations

Huperzia porophila, photographed by Noah Yawn
fig. a Noah Yawn, CC BY 4.0 / 2021-03-20 / obs. 117042314

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
2433067
Filed as
Huperzia porophila (F.E.Lloyd & Underw.) Holub
Det. by
not recorded on this sheet
Collected
M. L. Fernald 1906-07-22
Origin
CA
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 19 botanical countries

Regions where Huperzia porophila is native: Alabama, Georgia, Illinois, Indiana, Iowa, Kentucky, Maryland, Minnesota, Missouri, North Carolina, Ohio, Ontario, Pennsylvania, South Carolina, Tennessee, Vermont, Virginia, West Virginia, Wisconsin AlabamaGeorgiaIllinoisIndianaIowaKentuckyMarylandMinnesotaMissouriNorth CarolinaOhioOntarioPennsylvaniaSouth CarolinaTennesseeVermontVirginiaWest VirginiaWisconsin
Native distribution of Huperzia porophila, 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.
RegionTDWG codeContinent
Alabama ALA NORTHERN AMERICA
Georgia GEO
Illinois ILL
Indiana INI
Iowa IOW
Kentucky KTY
Maryland MRY
Minnesota MIN
Missouri MSO
North Carolina NCA
Ohio OHI
Ontario ONT
Pennsylvania PEN
South Carolina SCA
Tennessee TEN
Vermont VER
Virginia VRG
West Virginia WVA
Wisconsin WIS

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 154 observations

Condition 5th percentile Median 95th percentile
Coldest month, mean daily low -15.2 °C -3.7 °C 1.5 °C
Warmest month, mean daily high 22.4 °C 28.9 °C 31.4 °C
Annual rainfall 806 mm 1,163 mm 1,655 mm
Rainfall in the driest quarter 94 mm 223 mm 332 mm

It is found where winters are severely cold. This is not care advice and it is not a forecast. It is a measurement: we sampled the climate at every one of the 154 research-grade observations of Huperzia porophila 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.

  • Huperzia selago var. porophila (F.E.Lloyd & Underw.) Á.Löve & D.Löve
  • Lycopodium lucidulum f. porophilum (F.E.Lloyd & Underw.) Clute
  • Lycopodium lucidulum var. porophilum (F.E.Lloyd & Underw.) Clute
  • Lycopodium porophilum F.E.Lloyd & Underw.
  • Lycopodium selago var. porophila (F.E.Lloyd & Underw.) Clute
  • Lycopodium selago var. porophilum Clute
  • Urostachys lucidulus var. porophilus (F.E.Lloyd & Underw.) Nessel
  • Urostachys porophilus (F.E.Lloyd & Underw.) Herter

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.