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Stachydeoma graveolens

(Chapman ex Gray) Small

Mock Pennyroyal

G2Imperiled (G2G3) Found in 1 roadless area NatureServe Explorer →
G2ImperiledGlobal Rank
Identity
Unique IDELEMENT_GLOBAL.2.158417
Element CodePDLAM1W010
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
Endemicendemic to a single state or province
KingdomPlantae
PhylumAnthophyta
ClassDicotyledoneae
OrderLamiales
FamilyLamiaceae
GenusStachydeoma
Synonyms
Hedeoma graveolensChapman ex Gray
Other Common Names
mock pennyroyal (EN)
Concept Reference
Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
Taxonomic Comments
USFWS tracks as synonym HEDEOMA GRAVEOLENS (9/93).
Conservation Status
Rank MethodExpertise without calculation
Review Date2015-06-25
Change Date2010-07-30
Edition Date2013-08-16
Edition AuthorsCooper, S.T., E.D. Hardin, rev. C. Russell; rev. D.L.White, rev. K. Gravuer (2009), A.F. Johnson (2013)
Range Extent1000-5000 square km (about 400-2000 square miles)
Number of Occurrences21 - 80
Rank Reasons
A Florida panhandle endemic with scattered occurrences in seven counties. Approximately 30-40 occurrences are believed extant, over half of which are in the Apalachicola National Forest. Threats include lack of fire management in accordance with natural cycles, intensive silvicultural practices, and, particularly outside the National Forest, conversion of habitat to other uses such as cattle pasture.
Range Extent Comments
Endemic to the central Florida panhandle; known from Bay, Calhoun, Gulf, Liberty, Leon, Wakulla, and Franklin Counties.
Occurrences Comments
56 occurrences have been mapped, although 6 of these are ranked historical and/or were last observed in the 1950s-60s. Some of the occurrences are in close proximity; the total may be closer to 40 if closely adjacent sites were considered the same occurrence. The total in The Apalachicola National Forest using a 1 km separation distance would be 18: 14 in the Apalachicola District and 4 in the Wakulla District - merging of these occurrences has not yet been done (as of August 2013).
Threat Impact Comments
Lack of fire management in accordance with natural cycles is a threat throughout this species' range; it appears to require open sites for establishment. Certain silvicultulral practices also pose a threat, such as activities causing significant ground disturbance; the species has shown some ability to persist at sites where tree cutting has occurred. Occurrences within the Apalachicola National Forest are considered relatively secure in comparison to those outside of it; occurrences on private land face additional threats such as more intensive silviculture, conversion to cattle pasture, and development.
Ecology & Habitat

Diagnostic Characteristics

Leaves ovate, apically dentate, mostly 6-10 mm long; stems pilose with erect hairs nearly as long as the width of the stem (Clewell, 1985). Distinguished from species drummondii which has much narrower, often petiolate, leaves (Kral in Robinson, 1980). Toothed savory (Calamintha dentata) is another pink-flowering mint found in Florida panhandle sandhills; its lower leaves have small teeth, and flowers have 4 fertile stamens (Chafin 2000).

Habitat

Open sunny areas in mesic pine-palmetto-wiregrass flatwoods, including open sandy margins of bay swamps and anthropogenic openings such as roadsides. Also sandhills and low areas of longleaf pine-scrub oak ridges. Natural communities where found are adapted to frequent fire.

Reproduction

The family is primarily bee pollinated.
Terrestrial Habitats
Forest/WoodlandForest EdgeWoodland - ConiferSavanna
Palustrine Habitats
FORESTED WETLAND
Other Nations (1)
United StatesN2
ProvinceRankNative
FloridaS2Yes
Plant Characteristics
DurationPERENNIAL, SPRING-FLOWERING, SUMMER-FLOWERING
Economic Value (Genus)No
Roadless Areas (1)
Florida (1)
AreaForestAcres
SavannahApalachicola National Forest1,927
References (12)
  1. Chafin, L. G. 2000. Field guide to the rare plants of Florida. Florida Natural Areas Inventory, Tallahassee. [https://www.fnai.org/]
  2. Clewell, A.F. 1985. Guide to vascular plants of the Florida panhandle. Florida State Univ. Press, Tallahassee, Florida. 605 pp.
  3. Godfrey, R.K. 1988. Trees, shrubs, and woody vines of northern Florida and adjacent Georgia and Alabama. Univ. Georgia Press, Athens. 734 pp.
  4. Hardin, E. D., and D. L. White. 1989. Rare vascular plant taxa associated with wiregrass (<i>Aristida stricta</i>) in the southeastern United States. Natural Areas Journal 9(4): 234-245.
  5. Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
  6. Kral, R. 1983c. A report on some rare, threatened, or endangered forest-related vascular plants of the South. U.S. Dept. of Agriculture Forest Service Technical Publication R8-TP2, Athens, GA. 1305 pp.
  7. Radford, A.E., H.E. Ahles, and C.R. Bell. 1968. Manual of the vascular flora of the Carolinas. Univ. North Carolina Press, Chapel Hill, NC. 1183 pp.
  8. Robinson, A.F., Jr., ed. 1980b. Endangered and threatened species of the southeastern United States including Puerto Rico and the Virgin Islands. U.S. Forest Service General Rept. SA-GA 7.
  9. Small, J.K. 1933. Manual of the southeastern flora. Two volumes. Hafner Publishing Company, New York.
  10. Ward, D.B., ed. 1979. Rare and endangered biota of Florida. Vol. 5: Plants. Univ. Presses of Florida, Gainesville.
  11. Wunderlin, R.P. 1982. Guide to the vascular plants of central Florida. Univ. Presses Florida, Gainesville. 472 pp.
  12. Wunderlin, R.P. 1998. Guide to the Vascular Plants of Florida. University Press of Florida: Gainesville, Florida. 806 pp.