| Scutellaria ovata |
| Heart-leaved Skullcap |
Key Characteristics
Small forb of mesic woods; ovate leaves long-petioled with a heart-shaped base and serrated margins; flowers blue, tubular, borne in terminal racemes.
Status and Rank
- State Status: X - Presumed extirpated (legally 'threatened' if rediscovered)
- State Rank: SX - Presumed extirpated
- Global Rank: G5 - Secure
Occurrences
| County Name | Number of Occurrences | Year Last Observed |
|---|---|---|
| Van Buren | 1 | 1918 |
![Occurrence Map for [Sname]](https://webarchive.library.unt.edu/eot2008/20090116114333im_/http://web4.msue.msu.edu/mnfi/maptmp/NFR_Distributions12321059955656.png)
Information is summarized from MNFI's database of rare species and community occurrences. Data may not reflect true distribution since much of the state has not been thoroughly surveyed.
Habitat
Heart-leaved skullcap is known from a single collection in Van Buren County from 1918. In the Chicago region, this species occurs in mesic woods.
Natural Community Types
Associated Plants
In the Chicago region, this species occurs with such associates as sugar maple, wild ginger, blue cohosh, toothwort, squirrel corn, white snakeroot, wild phlox, white oak, red oak, bloodroot, basswood, wild-oats, and hairy yellow violet.
Management
The primary need for this species in Michigan is a status survey. Where it does occur, it would likely benefit from maintenance of the forest canopy.
General Survey Guidelines
Random meander search covers areas that appear likely to have rare taxa, based on habitat and the judgment of the investigator.
Survey Methods
- Meander search
Survey Period: From first week of June to fourth week of August
References
Survey References
- Elzinga, C.L., D.W. Salzer, and J.W. Willoughby. 1998. Measuring and Monitoring Plant Populations. The Nature Conservancy and Bureau of Land Management, Denver. BLM Technical Reference 1730-1. 477pp.
- Goff, G.F., G.A. Dawson, and J.J. Rochow. 1982. Site examination for Threatened and Endangered plant species. Environmental Management 6(4): 307-316
- Nelson, J.R. 1984. Rare Plant Field Survey Guidelines. In: J.P. Smith and R. York. Inventory of rare and endangered vascular plants of California. 3rd Ed. California Native Plant Society, Berkeley. 174pp.
- Nelson, J.R. 1986. Rare Plant Surveys: Techniques For Impact Assessment. Natural Areas Journal 5(3):18-30.
- Nelson, J.R. 1987. Rare Plant Surveys: Techniques for Impact Assessment. In: Conservation and management of rare and endangered plants. Ed. T.S. Elias. California Native Plant Society, Sacramento. 8pp.
Technical References
- Coffin, B. and L. Pfannmuller, eds. 1988. Minnesota's Endangered Flora and Fauna. University of Minnesota Press, Minneapolis. 473pp.
- Cooperrider, T.S. 1995. The Dicotyledonae of Ohio Part 2. Linaceae through Campanulaceae. Ohio State University Press, Columbus. 656pp.
- Gleason, H. A., and A. Cronquist. 1991. Manual of Vascular Plants of Northeastern United States and Adjacent Canada. Second edition. The New York Botanical Garden, Bronx. 910pp.
- Gray, A. 1950. Gray's Manual of Botany; eighth ed. Van Nostrand Reinghold, New York. 1632pp.
- Holmgren, N.H. 1998. Illustrated Companion to Gleason and Cronquist's Manual. Illustrations of the vascular plants of Northeastern United States and adjacent Canada. New York Botanical Garden, Bronx. 937pp.
- Voss, E.G. 1996. Michigan Flora. Part III. Dicots (Pyrolaceae-Compositae). Bulletin of the Cranbrook Institute of Science and University of Michigan Herbarium. 622pp.