Kalmia angustifolia var. angustifolia

Common names: Sheepkill
WeedyEndemic
Treatment appears in FNA Volume 8. Treatment on page 482.

Leaf-blades pale green abaxially, bright green adaxially, glabrous or with scattered, stipitate-glandular trichomes abaxially, usually not puberulent. Flowers: calyx puberulent and densely stipitate-glandular; corolla glabrous or slightly puberulent adaxially.


Phenology: Flowering May–Jul.
Habitat: Open bogs, swamps, wet areas
Elevation: 0-800 m

Distribution

V8 941-distribution-map.gif

N.B., Nfld. and Labr. (Nfld.), N.S., Ont., P.E.I., Que., Conn., Del., Maine, Md., Mass., Mich., N.H., N.J., N.Y., N.C., Pa., R.I., Vt., Va., W.Va., in n Europe

Discussion

Variety angustifolia is well known as a weed in plantations of commercial shrubs such as blueberries and of timber trees. It is difficult and sometimes costly to control in the blueberry fields and it is on the Canadian weed list (I. V. Hall et al. 1973; A. A. Ismail and D. E. Yarborough 1981). Variety angustifolia has allelopathic effects on black spruce (Picea mariana) seedlings, and has a competitive advantage over them. It may have the same effects on balsam fir (Abies balsamea) or at least play a role in reducing the growth of that tree (A. U. Mallik 1987, 1993; Mallik and P. F. Newton 1988; E. B. Peterson 1965; I. D. Thompson and Mallik 1989; H. Zhu and Mallik 1994).

Selected References

None.

Lower Taxa

None.

"entire" is not a number.

stipitate-glandular +, puberulent +  and glabrous +
glabrescent +  and puberulent +
Acuminate (?) +, Obtuse (?) +  and Acute (?) +
Shunguo Liu +, Keith E. Denford +, John E. Ebinger +, John G. Packer +  and Gordon C. Tucker +
Linnaeus +
furrowed +  and smooth +
not flaky +
1.5 cm15 mm <br />0.015 m <br /> (8 cm80 mm <br />0.08 m <br />) +
oblong;elliptic-lanceolate +
coriaceous +
0.5cm;2.5cm +
stipitate-glandular +  and puberulent +
0.2 cm2 mm <br />0.002 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
stipitate-glandular +  and puberulent +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Sheepkill +
polypetalous +  and sympetalous +
puberulent +  and glabrous +
rotate to crateriform campanulate cylindric globose or urceolate +
N.B. +, Nfld. and Labr. (Nfld.) +, N.S. +, Ont. +, P.E.I. +, Que. +, Conn. +, Del. +, Maine +, Md. +, Mass. +, Mich. +, N.H. +, N.J. +, N.Y. +, N.C. +, Pa. +, R.I. +, Vt. +, Va. +, W.Va. +  and in n Europe +
0-800 m +
undifferentiated +
fusiform +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
pendulous +  and erect +
subglobose;globose +
Open bogs, swamps, wet areas +
multicellular +
bright green +  and pale green +
puberulent +, with scattered , stipitate-glandular trichomes +  and glabrous +
opposite +  and alternate +
persistent +
10-keeled +  and rotate +
parietal +, axile +  and placentation +
tenuinucellate +  and unitegmic +
2-40-flowered +
0.5 cm5 mm <br />0.005 m <br /> (2 cm20 mm <br />0.02 m <br />) +
reduced +
not sticky +
0.6 cm6 mm <br />0.006 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
Flowering May–Jul. +
4-5-carpellate +
4-12-flowered +  and corymbiform +
red to purple spots +
0.75 cm7.5 mm <br />0.0075 m <br /> (0.95 cm9.5 mm <br />0.0095 m <br />) +
glabrous +  and puberulent +
6mm;13mm +
distinct +
obovoid +
0.6mm +  and 1mm +
reddish +  and green +
0.2 cm2 mm <br />0.002 m <br /> (0.28 cm2.8 mm <br />0.0028 m <br />) +
Weedy +  and Endemic +
procumbent +  and prostrate +
creeping +  and sprawling +
peltate +  and capitate +
straight +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
red to purple spots +
0.75 cm7.5 mm <br />0.0075 m <br /> (0.95 cm9.5 mm <br />0.0095 m <br />) +
glabrous +  and puberulent +
0.6 cm6 mm <br />0.006 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
Chamaedaphne angustifolia +
Kalmia angustifolia var. angustifolia +
Kalmia angustifolia +
variety +
stipitate-glandular +
puberulent +  and glabrous +
achlorophyllous +  and chlorophyllous +
evergreen +, deciduous +  and perennial +
heterotrophic +, autotrophic +  and mycotrophic +