Difference between revisions of "Echinacea laevigata"
J. Wash. Acad. Sci. 19: 273. 1929.
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|common_names=Smooth purple coneflower | |common_names=Smooth purple coneflower | ||
| − | |basionyms={{Treatment/ID/ | + | |basionyms={{Treatment/ID/Basionym |
|name=Brauneria laevigata | |name=Brauneria laevigata | ||
|authority=C. L. Boynton & Beadle | |authority=C. L. Boynton & Beadle | ||
| + | |publication_title=in J. K. Small, Fl. S.E. U.S., | ||
| + | |publication_place=1261, 1340. 1903 | ||
}} | }} | ||
|synonyms={{Treatment/ID/Synonym | |synonyms={{Treatment/ID/Synonym | ||
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|publication year=1929 | |publication year=1929 | ||
|special status= | |special status= | ||
| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V19-20-21/V21_208.xml |
|tribe=Asteraceae tribe Heliantheae | |tribe=Asteraceae tribe Heliantheae | ||
|subtribe=Asteraceae (tribe Heliantheae) subtribe Ecliptinae | |subtribe=Asteraceae (tribe Heliantheae) subtribe Ecliptinae | ||
Revision as of 18:47, 24 September 2019
Plants 35–110 cm (roots fusiform, ± branched). Herbage (glaucous) mostly glabrous (leaves sometimes sparsely hairy abaxially). Stems green. Basal leaves: petioles 4–26 cm; blades 3- or 5-nerved, elliptic to lanceolate-ovate, 10–50 × 3–6.5 cm, bases broadly cuneate to rounded, margins usually serrate or dentate. Peduncles 10–40 cm. Phyllaries lanceolate, 3–15 × 2–3(–5) mm. Receptacles: paleae 7–12 mm, tips orange to brownish purple-tipped, often incurved, sharp-pointed. Ray corollas pink to purple, laminae spreading to reflexed, 35–80 × 3–7 mm, sparsely hairy abaxially. Discs conic to spheric, 15–30 × 15–40 mm. Disc corollas 8–9 mm, lobes purple to greenish (usually erect). Cypselae tan, disc cypselae tan, banded, 4–5 mm, usually glabrous (ray cypselae sometimes hairy on angles); pappi to 1.2 mm (teeth unequal). 2n = 22.
Phenology: Flowering late spring–early summer.
Habitat: Well-drained soils, open wooded hillsides, fields
Elevation: 100–1100 m
Distribution
Ga., N.C., Pa., S.C., Va.
Discussion
Of conservation concern.
Echinacea laevigata was historically present in Pennsylvania but is now thought to be extirpated; its occurrence in Maryland has not been confirmed; reports of its presence in Alabama and Arkansas are most likely based on misidentifications. It is in the Center for Plant Conservation’s National Collection of Endangered Plants.
Selected References
None.