Difference between revisions of "Rudbeckia grandiflora"
in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 5: 556. 1836.
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|common_names=Largeflower or rough coneflower | |common_names=Largeflower or rough coneflower | ||
| − | |basionyms={{Treatment/ID/ | + | |basionyms={{Treatment/ID/Basionym |
|name=Centrocarpha grandiflora | |name=Centrocarpha grandiflora | ||
|authority=Sweet | |authority=Sweet | ||
| + | |publication_title=Brit. Fl. Gard., ser. | ||
| + | |publication_place=2, 1: plate 87. 1831 | ||
}} | }} | ||
|synonyms= | |synonyms= | ||
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|publication year=1836 | |publication year=1836 | ||
|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_118.xml |
|tribe=Asteraceae tribe Heliantheae | |tribe=Asteraceae tribe Heliantheae | ||
|subtribe=Asteraceae (tribe Heliantheae) subtribe Rudbeckiinae | |subtribe=Asteraceae (tribe Heliantheae) subtribe Rudbeckiinae | ||
Revision as of 18:46, 24 September 2019
Perennials, to 120 cm (roots fibrous, caudices often woody). Stems proximally glabrous or sparsely hairy (hairs spreading), distally strigose (hairs ascending). Leaves: blades elliptic, lanceolate, or ovate (± conduplicate, not lobed), bases cuneate to rounded, margins entire or remotely serrate, apices acute, faces strigose, abaxially gland-dotted; basal petiolate, 10–35 × 2–11 cm; cauline petiolate (proximal) to nearly sessile (distal), 4–30 × 1.5–9 cm. Heads mostly borne singly. Phyllaries to 15 mm (strigose and gland-dotted). Receptacles hemispheric to ovoid; paleae 5–6.5 mm, (apical margins glabrous) acuminate-cuspidate, awn-tipped, abaxial tips sparsely strigose. Ray florets 12–25; laminae elliptic to obovate (reflexed), 20–50 × 5–10 mm, abaxially hairy and gland-dotted. Discs 10–30 × 15–25 mm. Disc florets 200–800+; corollas greenish yellow basally and in lobes, otherwise maroon, 3.5–5 mm; style branches ca. 1.8 mm, apices obtuse. Cypselae 2–3 mm; pappi coroniform, to 0.5 mm.
Distribution
Mostly c, e, and s United States.
Discussion
Varieties 2 (2 in the flora).
Selected References
None.
Key
| 1 | Stems glabrous or sparsely hairy proximally and hairy distally (hairs ascending, mostly shorter than 0.5 mm) | Rudbeckia grandiflora var. alismifolia |
| 1 | Stems hairy (hairs spreading proximally, ascending distally, ca. 1 mm) | Rudbeckia grandiflora var. grandiflora |