Eupatorium resinosum
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Photos, Renee Brecht |
Britton & Brown |
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| Botanical name: | Eupatorium resinosum Torr. ex DC. |
| Common name: | pine barren boneset |
| Group: | dicot |
| Family: | Asteraceae |
| Growth type: | forb/herb |
| Duration: | perennial |
| Origin: | native |
| Plant height: | 1-3' |
| Foliage: | sticky-hairy (resinosum); leaves narrowly oval, 2-5", narrowly pointed toothed, leaves clasping but not fused |
| Flower: | white, flat topped panicles; heads 1/8"-1/4", flowers 9-14. |
| Flowering time: | July to October |
| Habitat: | swamps and wet bogs of the Pine Barrens |
| Range in New Jersey: | southern portion of the state |
| Heritage ranking, if any: | State Endangered, G3, S2, CMP |
| Distribution: |  |
| Misc. | Stone, in 1910, says "This is a species which does not associate with the other white Bonesets, unless it be with E. leucolepis. It is strictly a Pine Barrrens species frequenting the great natural bogs in the heart of the region where grow Xyris congdoni, X. fimbriata, Eriocaulon decangulare, Gyrostachys praecox, Helianthus angustifolius, Lobelia canbyi, etc.,
and is not known to occur outside of New Jersey. At Manahawkin, where
the Pine Barren swamps come well out to the coast and the range of this
species meets that of E. perfoliatum, Mr. Bayard Long has discovered an interesting hybrid between the two" p. 737 E. resinosum is profiled by the CPC National Collection of Endangered Plants and is currently found in New Jersey, then disjunct to the Carolinas. It is rare throughout its range. It has been extirpated from Delaware and New York. E. resinosum can be distinguished from E. perfoliatum by the leaves, which are clasping the base but not fused in resinosum, but broadly based and fused around the stem in perfoliatum. Leaves are also much narrower on resinosum. |