Difference between revisions of "Ratibida pinnata"
Bull. Torrey Bot. Club 24: 410. 1897.
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|common_names=Grayhead or pinnate prairie coneflower | |common_names=Grayhead or pinnate prairie coneflower | ||
| − | |basionyms={{Treatment/ID/ | + | |basionyms={{Treatment/ID/Basionym |
|name=Rudbeckia pinnata | |name=Rudbeckia pinnata | ||
|authority=Ventenat | |authority=Ventenat | ||
| + | |publication_title=Descr. Pl. Nouv., plate | ||
| + | |publication_place=71. 1802 | ||
}} | }} | ||
|synonyms= | |synonyms= | ||
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|publication year=1897 | |publication year=1897 | ||
|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_139.xml |
|tribe=Asteraceae tribe Heliantheae | |tribe=Asteraceae tribe Heliantheae | ||
|subtribe=Asteraceae (tribe Heliantheae) subtribe Rudbeckiinae | |subtribe=Asteraceae (tribe Heliantheae) subtribe Rudbeckiinae | ||
Revision as of 18:47, 24 September 2019
Perennials, to 125+ cm; fibrous rooted (arising from stout rhizomes or woody caudices). Leaves 5–40 × 3–15+ cm, pinnatifid to pinnate, lobes 3–9, narrowly lanceolate to ovate, 1–15 × 0.2–3.5 cm, faces strigose, gland-dotted. Heads mostly 1–12, held well beyond leaves. Peduncles 3–27+ cm (ribs tan, prominent). Phyllaries 10–15, outer linear, 3–15 × 1–3 mm, inner lanceolate-ovate, 3–6 × 0.7–3 mm. Paleae 1.2–5 × 1–1.8 mm, resin glands linear to oblanceolate, 2–3.3 mm. Ray florets 6–15; corollas yellow, 2.5–3.8 mm, tubes ca. 1–3 mm, hirsute, laminae linear-elliptic to oblong-oblanceolate, 16–60 × 4–15 mm. Discs ellipsoid to globular or ovoid, 10–25 × 10–18 mm. Disc florets 100–200+; corollas greenish yellow, often purplish distally, 2.5–3.8 mm; style branches ca. 1.8 mm, proximal 1/2 stigmatic, apices subulate. Cypselae linear-oblanceoloid, 2–4 × 1–2.3 mm, margins usually glabrous, sometimes adaxial ciliate; pappi 0 or of 1–2 toothlike projections. 2n = 28.
Phenology: Flowering May–Oct.
Habitat: Prairies, woodland openings and borders, limestone outcrops
Elevation: 10–300 m
Distribution
Ont., Ala., Ark., Fla., Ga., Ill., Ind., Iowa, Kans., Ky., La., Mass., Mich., Minn., Miss., Mo., Nebr., N.Y., Ohio, Okla., S.Dak., Tenn., Vt., Wis.
Discussion
Selected References
None.