Penstemon hirsutus - (image 1 of 4)
Taxonomy
Family: Scrophulariaceae
Habitat
Sandy, gravelly, or shallow-soil prairies and open wooded slopes near streams. Dry woods and fields.
Associates
Distribution
Quebec and ME, west to MI and WI, south to VA, KY and northern TN.
Morphology
Perennial herb with erect stems to 80 cm; stems villous with spreading or tangled glandular hairs. Leaves opposite; cauline leaves lanceolate to oblong, toothed or subentire, rounded or truncate at the base. Inflorescence terminal, racemiform; corolla usually 2-3 cm long, violet to pale violet with white lobes, base of the the lower lip arched upwards so that it more or less closes off the throat; throat flattened, ridged along the underside, lower corolla lobes much surpassing the upper.
Notes
Flowers May to July
Wetland indicator: Upland
Endangered in MA.
References
Gleason, Henry A. and A. Cronquist. 1991. Manual of Vascular Plants of Northeastern United States and Adjacent Canada. Second Ed.
The New York Botanical Garden. Bronx, NY
Swink, F. and G. Wilhelm. 1994. Plants of the Chicago Region.
Indiana Academy of Science. The Morton Arboretum. Lisle, Illinois.
USDA, NRCS. 2002. The PLANTS Database, Version 3.5 (http://plants.usda.gov).
National Plant Data Center, Baton Rouge, LA 70874-4490 USA.
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Michael Hough © 2009 |