Onosmodium molle ssp. molle
Soft False Gromwell
Taxonomic Status: Accepted
Related ITIS Name(s): Onosmodium molle ssp. molle Michx. (TSN 524374)
Unique Identifier: ELEMENT_GLOBAL.2.128292
Element Code: PDBOR0S032
Informal Taxonomy: Plants, Vascular - Flowering Plants - Borage Family
 
Kingdom Phylum Class Order Family Genus
Plantae Anthophyta Dicotyledoneae Lamiales Boraginaceae Onosmodium
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Concept Reference
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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.
Concept Reference Code: B94KAR01HQUS
Name Used in Concept Reference: Onosmodium molle ssp. molle
Taxonomic Comments: As treated here, Onosmodium molle includes plants sometimes placed in separate species; in that case, the present "ssp. molle" is the species O. molle taken in the strict sense.
Conservation Status
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NatureServe Status

Global Status: G4G5T3
Global Status Last Reviewed: 02Apr1998
Global Status Last Changed: 05Nov1984
Rounded Global Status: T3 - Vulnerable
Reasons: Onosmodium molle ssp. molle is known from Alabama, Illinois, Kentucky, and Tennessee. Although very rare and perhaps extirpated in Alabama, Illinois, and Kentucky, it is abundant (at least twenty-five to fifty extant occurrences) in its cedar glade habitat in the Nashville Basin of central Tennessee. Development is a threat, but usually only if its habitat is completely destroyed; O. molle ssp. molle is a hardy taxon and seems to thrive in disturbed areas.
Nation: United States
National Status: N3

U.S. & Canada State/Province Status
Due to latency between updates made in state, provincial or other NatureServe Network databases and when they appear on NatureServe Explorer, for state or provincial information you may wish to contact the data steward in your jurisdiction to obtain the most current data. Please refer to our Distribution Data Sources to find contact information for your jurisdiction.
United States Alabama (S2), Illinois (SNR), Kentucky (SNR), Tennessee (S3)

Other Statuses

NatureServe Global Conservation Status Factors

Range Extent Comments: Known from Franklin County in northwestern Alabama, Jackson County in southwestern Illinois, Logan and Warren Counties in southcentral Kentucky, seven counties in the Nashville Basin in central Tennessee and in Carroll County in the western Highland Rim in Tennessee (Medley, 1980 and Baskin, 1983).

Number of Occurrences: 21 - 80
Number of Occurrences Comments: Known from at least twenty-five to fifty occurrences in Tennessee, and two historical Alabama occurrences, one historical Illinois occurrence, and two historical Kentucky occurrences (Medley, 1980).

Population Size Comments: Some populations have as few as twenty-five individuals whereas others have as many as 1,000 plants (Medley, 1980 and Baskin, 1983).

Overall Threat Impact Comments: Threats to this habitat primarily result from ORV use and some weedy competition (limiting ORV use has proven effective in maintaining populations). Other threats include: overgrazing, dumping, natural succession, and loss of land to development. Habitat stability affected by nutrient and/or hydrological changes (i.e. agricultural run-off, hydrological alteration from road-building).

Short-term Trend: Relatively Stable (<=10% change)
Short-term Trend Comments: In 1980, Medley reported that its habitat, cedar glades, were being destroyed rapidly throughout this taxon's range. However, Onosmodium molle ssp. molle is a hardy species and often thrives in disturbed areas.

Intrinsic Vulnerability Comments: As long as its habitat is not completely destroyed, this species is hardy and survives disturbance well (Medley, 1980).

Other NatureServe Conservation Status Information

Distribution
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Global Range: Known from Franklin County in northwestern Alabama, Jackson County in southwestern Illinois, Logan and Warren Counties in southcentral Kentucky, seven counties in the Nashville Basin in central Tennessee and in Carroll County in the western Highland Rim in Tennessee (Medley, 1980 and Baskin, 1983).

U.S. States and Canadian Provinces

Due to latency between updates made in state, provincial or other NatureServe Network databases and when they appear on NatureServe Explorer, for state or provincial information you may wish to contact the data steward in your jurisdiction to obtain the most current data. Please refer to our Distribution Data Sources to find contact information for your jurisdiction.
Color legend for Distribution Map

U.S. & Canada State/Province Distribution
United States AL, IL, KY, TN

Range Map
No map available.


U.S. Distribution by County Help
State County Name (FIPS Code)
AL Franklin (01059), Lawrence (01079), Wilcox (01131)
* Extirpated/possibly extirpated
U.S. Distribution by Watershed Help
Watershed Region Help Watershed Name (Watershed Code)
03 Middle Alabama (03150203)+
06 Pickwick Lake (06030005)+, Bear (06030006)+
+ Natural heritage record(s) exist for this watershed
* Extirpated/possibly extirpated
Ecology & Life History
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Basic Description: An erect, rigid, much branched perennial herb. Leaves blue-gray with thick appressed hairs, lanceolate or ovate. Inflorescence a terminal cyme. Sepals greenish; petals whitish or greenish, united at the base forming a tube. Fruits are white to brownish nutlets, moderately pitted.
Habitat Comments: Grows in the open and at the edges of cedar glades, limestone pastures with thin soil and old field habitats, and occasionally in open woods (Medley, 1980). It most frequently occurs with Agave virginica, Ambrosia artemisiifolia, Arenaria patula, Asclepias veritcillata, Belamcanda chinensis, Celtis laevigata, Chrysanthemum leucanthemum, Croton capitatus, Croton monanthogynus, Daucus carota, Diospyros virginiana, Euphorbia corollata, Forestiera ligustrina, Juniperus virginiana, Opuntia compressa, Passiflora incarnata, Petalostemon gattingeri, Quercus muehlenbergii, Rhus aromatica, Ruellia humilis, Sedum pulchellum, Symphoricarpos orbiculatus, Tridens flavus, and Ulmus alata (Baskin, 1983).
Economic Attributes Not yet assessed
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Management Summary Not yet assessed
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Population/Occurrence Delineation Not yet assessed
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Population/Occurrence Viability
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U.S. Invasive Species Impact Rank (I-Rank) Not yet assessed
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Authors/Contributors
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NatureServe Conservation Status Factors Edition Date: 02Apr1998
NatureServe Conservation Status Factors Author: D. Gries; S.L. Neid (MRO).

Botanical data developed by NatureServe and its network of natural heritage programs (see Local Programs), The North Carolina Botanical Garden, and other contributors and cooperators (see Sources).

References
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  • Baskin, J. M., C. C. Baskin, and M. E. Medley. 1983. The historical geographical distribution of Onosmodium molle Michx. subsp. molle (Boraginaceae). Bulletin of the Torrey Botanical Club 110(1):73-76.

  • Cochrane, T.S. 1976. Taxonomic status of the Onosmodium molle complex (Boraginaceae) in Wisconsin. Mich. Bot. 15:103-110.

  • Gleason, H.A., and A. Cronquist. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. New York Botanical Garden, Bronx, New York. 910 pp.

  • 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.

  • Kral, R. 1983c. A report on some rare, threatened, or endangered forest-related vascular plants of the South. 2 vols. Tech. Pub. R8-TP2. U.S. Forest Service, Atlanta, GA.

  • Medley, M. E., and L. R. Phillippe. 1980. Status report on Onosmodium molle Michx. ssp. molle. Prepared under Contract # 14-16-0004-79-105 for U.S. Fish and Wildlife Service. Unpaginated.

  • Turner, B. L. 1995. Synopsis of the genus Onosmodium (Boraginaceae). Phytologia 78(1):39-60.

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