Pluchea odorata (Linnaeus) Cassini. Common name: Saltmarsh Fleabane. Phenology: Aug-Oct. Habitat: Salt and brackish marshes. Distribution: Massachusetts and Michigan south to s. Florida and Texas (mostly on the Coastal Plain), also in w. United States, Central America, and South America.
Origin/Endemic status: Native
Taxonomy Comments: Two varieties are sometimes recognized, the widespread and more robust, but small headed var. odorata (involucre 4-6 (-7) mm across the disk, with 6-13 (19) functionally staminate flowers; plants 2-8 (-20) dm tall; of VA southward), and the northeastern North American and less robust but large-headed var. succulenta (involucre 7-8 (-10) mm across the disk, with (14-) 21-34 functionally staminate flowers; plants 2-6 dm tall; of NC northward). Additional study is needed to warrant recognition of the varieties. Basionym: Conyza odorata L. 1759
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Heliophily ⓘ: 8
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Horticultural Information
Intro: Erect annual of salt and brackish marshes.
Stems: Stems branched and covered with sticky, glandular hairs; gives off unpleasant odor when bruised or crushed.
Leaves: Leaves alternate, short-petiolate to sessile, oval with pointed tip, 1 1/2-6 in. long, finely toothed, hairy beneath; give off unpleasant odor when bruised or crushed.
Inforescence:
Flowers: Composite flowers (heads) in mostly flat-topped, branching clusters at tips of stem and branches; heads 1/4-3/8 in. wide and consisting of tiny, pink to rosy purple, tubular disk florets closely surrounded by several series of pinkish-purple, gland-dotted, pointy bracts.
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Height: 1-3 ft.
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description: Erect annual of salt and brackish marshes.
stems: Stems branched and covered with sticky, glandular hairs; gives off unpleasant odor when bruised or crushed.
leaves: Leaves alternate, short-petiolate to sessile, oval with pointed tip, 1 1/2-6 in. long, finely toothed, hairy beneath; give off unpleasant odor when bruised or crushed.
inflorescence:
flowers: Composite flowers (heads) in mostly flat-topped, branching clusters at tips of stem and branches; heads 1/4-3/8 in. wide and consisting of tiny, pink to rosy purple, tubular disk florets closely surrounded by several series of pinkish-purple, gland-dotted, pointy bracts.
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