Rudbeckia graminifolia
Biltmore Bot. Stud. 1: 12. 1901.
Perennials, to 80 cm (roots fibrous). Stems moderately strigose (hairs ascending). Leaves: blades narrowly lanceolate to elliptic (grasslike, lengths 10+ times widths, not lobed), herbaceous, bases attenuate, margins entire, apices acute, faces glabrous or sparsely hirsute; basal petiolate or sessile, 10–25 × 0.5–1 cm; cauline sessile, 1–25 × 0.2–1 cm (distal smaller), bases attenuate. Heads mostly borne singly. Phyllaries to 1 cm (spreading to reflexed). Receptacles hemispheric to ovoid; paleae 4–5 mm, (apical margins glabrous) apices acuminate-cuspidate, awn-tipped, abaxial tips sparsely strigose. Ray-florets 8–16; corollas orangish red to maroon, laminae elliptic to obovate, 10–25 × 3–6 mm, abaxially sparsely strigose. Discs 10–15 × 8–15 mm. Disc-florets 50–300+; corollas proximally maroon, distally brown-purple, 3.9–4.4 mm; style-branches ca. 1.8 mm, apices obtuse to rounded. Cypselae 2–3 mm; pappi coroniform, to 0.5 mm. 2n = 38.
Phenology: Flowering spring–fall.
Habitat: Wet, sandy flatwoods sites
Elevation: 0–30 m
Discussion
Rudbeckia graminifolia grows in the Apalachicola region.
Selected References
None.