Difference between revisions of "Echinacea tennesseensis"

(Beadle) Small

Man. S.E. Fl., 1421, 1509. 1933.

Common names: Tennessee purple coneflower
EndemicConservation concern
Basionym: Brauneria tennesseensis Beadle Bot. Gaz. 25: 359. 1898
Synonyms: Echinacea pallida var. tennesseensis (Beadle) Binns, B. R. Baum & Arnason
Treatment appears in FNA Volume 21. Treatment on page 92. Mentioned on page 89.
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|publication_place=25: 359. 1898
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|name=Echinacea pallida var. tennesseensis
 
|name=Echinacea pallida var. tennesseensis
 
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|publication title=Man. S.E. Fl.,
 
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|publication year=1933
 
|publication year=1933
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Latest revision as of 20:10, 5 November 2020

Plants to 50 cm (roots elongate-turbinate, branched). Herbage sparsely to densely hairy (indument relatively soft, hairs spreading, to 2+ mm). Stems yellowish green becoming tan. Basal leaves: petioles 2–10 cm; blades 1- or 3-nerved, linear to lanceolate, 6–12 × 0.7–1.5 cm, bases attenuate, margins entire (usually ciliate). Peduncles 8–25+ cm. Phyllaries lanceolate to ovate, 5–10 × 1.5–2.5 mm. Receptacles: paleae 9–12 mm, tips purple, 2–3 mm, often incurved, rounded to acute. Ray corollas pink to purplish, laminae spreading to reflexed, 20–40 × 3–4 mm, moderately hairy abaxially. Discs conic, 10–25 × 15–25 mm. Disc corollas 5.5–6.5 mm, lobes usually purple. Cypselae tan, 4–5 mm, faces smooth, glabrous; pappi to ca. 1.2 mm (major teeth 0–4). 2n = 22.


Phenology: Flowering in summer.
Habitat: Dry, rocky hills, barrens
Elevation: 100–200 m

Discussion

Of conservation concern.

Echinacea tennesseensis is in the Center for Plant Conservation’s National Collection of Endangered Plants.

Lower Taxa

None.