2024 Edition • Get the App • Cite this Page
X

Colors

Data mode

Account

Login
Sign up

Collapse this

Support the Flora of the Southeastern US

2024 has been a banner year for making the best flora we can imagine. We've created:
With financial support from people like you, we are aiming even higher in 2025. Together we can accomplish all this: Vote on our 2025 priorities
  • Add Global Conservation Ranks (GRanks) vote
  • Professional graphic keys (polyclaves) to individual families/genera vote
  • 2 new FloraQuest apps: Florida & Mid-South vote
  • Image overlays highlighting diagnostic characters with arrows vote
  • iNaturalist integration in FloraQuest vote
Write-in vote: vote
We've set a goal of recruiting 200 ongoing supporters to donate $15 or more each month in 2025. Please help us reach this goal and make next year's flora even better:
Donate $15 per month
(0.02¢/plant image)
Donate $30 per month
(0.05¢/plant image)
Donate $50 per month
(amazing!)
Donate another
or one-time amount
Copy permalink to share

Ophioglossum pycnostichum (Fernald) Á. Löve & D. Löve. Southern Adder’s-tongue. Phen: Mar-Jul. Hab: Bottomland forests, moist loamy soils of successional forests and old fields. Dist: S. NJ, IN, IL, and s. MI south to GA, MS, and e. TX; s. Mexico.

Origin/Endemic status: Native

Taxonomy Comments: O. vulgatum (defined narrowly) is Eurasian. Fernald (1939) provides a number of characters to separate this taxon from Eurasian O. vulgatum s.s. While Wagner in FNA (1993) subsumes "pycnostichum" in O. vulgatum, he points out that "a distinctive large-spored form with a chromosome number of 2n= ca. 1320" occurs "in the Appalachians", suggesting the possibility of cryptic taxa within "pycnostichum" (= southeastern North American O. vulgatum). The best treatment of this complex remains uncertain and needs additional study.

Synonymy ⓘ: = Ar, Tn, Va, W; = Ophioglossum vulgatum L. var. pycnostichum Fernald – C, F, GrPl, Pa, RAB, Tat, WV; < Ophioglossum vulgatum L. – ETx1, FNA2, G, Il, K1, K3, K4, Meso1, Mo1, S13, Sf, Tx, TxFerns, Lin et al (2013)

Links to other floras: < Ophioglossum vulgatum - FNA2

Show in key(s)

Show parent genus

Wetland Indicator Status:

  • Atlantic and Gulf Coastal Plain: FACW (name change)
  • Eastern Mountains and Piedmont: FACW (name change)
  • Great Plains: FACW (name change)
  • Midwest: FACW (name change)
  • Northcentral & Northeast: FACW (name change)

Heliophily ⓘ: 4

Your browser does not support SVGs

Hover over a shape, letter, icon, or arrow on the map for definition or see the legend.

image of plant© Alan Cressler: Ophioglossum pycnostichum, Whitmore's Bluff, Oostanaula River, Floyd County, Georgia 2 by Alan Cressler source | Original Image ⭷
image of plant© Richard & Teresa Ware CC-BY-NC, permission granted to NCBG | Original Image ⭷
image of plant© Scott Ward | Original Image ⭷
image of plant© Gary P. Fleming | Original Image ⭷
image of plant© Bruce A. Sorrie | Original Image ⭷

Feedback

See something wrong or missing on about Ophioglossum pycnostichum? Let us know here: (Please include your name and email if at all complicated so we can clarify if needed.) We greatly appreciate feedback, and will include updates from you in our next webapp update, which can take a few months.


« show previous | back to original search ↑ | show next »