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Compilation
Rudbeckia missouriensis
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Isosyntype of Rudbeckia missouriensis Engelmann ex Boynton & Beadle [family ASTERACEAE]
Rudbeckia missouriensis Engelm. ex C.L.Boynton & Beadle [family ASTERACEAE]
Lectotype of Rudbeckia missouriensis Engelm. ex C.L. Boynton & Beadle [family ASTERACEAE]
Rudbeckia missouriensis Engelm. ex C.L. Boynton & Beadle [family ASTERACEAE]
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Name
Identification
Rudbeckia missouriensis
Engelmann ex Boynton & Beadle
[family
ASTERACEAE
] (stored under name); Verified by Engelm. ex. Boynton & Beadle,
1901
Related name
Rudbeckia missouriensis
Common name
Missouri or Missouri orange coneflower, Flora of North America Vol. 21
Flora
Entry for Rudbeckia missouriensis Engelmann ex C. L. Boynton & Beadle [family ]
Herbarium
Flora of North America (FNA)
Collection
Flora of North America
Resource Type
Reference Sources
Entry From
Flora of North America, Vol 21,
Names
Rudbeckia missouriensis
Engelmann ex C. L. Boynton & Beadle
[family
], Biltmore Bot. Stud., 1: 17. 1901
Rudbeckia fulgida
Aiton
var. missouriensis (Engelmann ex C. L. Boynton & Beadle) Cronquist [family
]
Treatment Author(s)
Lowell E. Urbatsch
Patricia B. Cox
Information
Perennials, to 80 cm (not rhizomatous, not stoloniferous, rosettes at bases of aerial stems). Stems (branches ascending) moderately hirsute (hairs spreading, 1+ mm). Leaves: blades linear to spatulate (not lobed), bases attenuate to cuneate, margins entire or remotely serrulate, apices acute to rounded, faces hirsute; basal petiolate, 5–20 × 0.5–2 cm; cauline petiolate (proximal) or sessile (distal), 2–15 × 0.4–1.5 cm. Heads borne singly or (2–12) in loose, corymbiform arrays. Phyllaries to 1.5 cm (faces hairy, more densely abaxially). Receptacles mostly hemispheric; paleae 5–6.5 mm, apices rounded to acute, abaxial tips glabrous. Ray florets 9–15; laminae elliptic to oblanceolate, 10–25 × 5–8 mm, abaxially sparsely strigose. Discs 8–15 × 10–17 mm. Disc florets 150–250+; corollas proximally greenish yellow, distally purple brown, 4–5.5 mm; style branches ca. 1.5 mm, apices obtuse. Cypselae 1.5–2.7 mm; pappi coroniform, ca. 0.1 mm. 2n = 38.
Phenology
mar-may (spring), jun-aug (summer), sep-nov (fall)
Altitude range
10–80 m;
Distribution
USA Ark.USA Ill.USA Ky.USA La.USA Mo.USA Okla.USA Tex.
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