Tanacetum bipinnatum |
Tanacetum |
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camphor tansy, dune tansy |
tansy |
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Habit | Stout herbaceous perennial from rhizomes, the stem 2-6 dm. tall, villous with flattened hairs. | |
Leaves | Basal leaves well developed and larger than the cauline leaves or wanting; cauline leaves 5-20 cm. long, bi- or tri-pinnatifid, the ultimate segments blunt or rounded. |
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Flowers | Heads several in a short, flat-topped inflorescence; involucre bracts dry, imbricate, the margins and tip scarious; disk 8-15 mm. wide; rays yellow, pistillate, short, barely surpassing the marginal disk flowers; disk flowers yellow, perfect, with 5-lobed tubular corolla; pappus a minute crown. |
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Fruits | Achene 5-ribbed, glandular. |
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Tanacetum bipinnatum |
Tanacetum |
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Flowering time | May-September | |
Habitat | Sand dunes along the coast. | |
Distribution | Occurring west of the Cascades crest along the coast of Washington; Alaska to California, east across Canada to the Great Lakes region and northeastern North America.
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Origin | Native | Native |
Conservation status | Not of concern | Not of concern |
Sibling taxa | ||
Subordinate taxa | ||
Web links |
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