Rudbeckia graminifolia

(Torrey & A. Gray) C. L. Boynton & Beadle

Biltmore Bot. Stud. 1: 12. 1901.

Common names: Grassleaf coneflower
Endemic
Basionyms: Echinacea atrorubens var. graminifolia Torrey & A. Gray Fl. N. Amer. 2: 306. 1842
Treatment appears in FNA Volume 21. Treatment on page 56. Mentioned on page 44, 45, 52, 53.

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.

Lower Taxa

None.

... more about "Rudbeckia graminifolia"
not tailed +, rounded +  and obtuse +
acuminate-cuspidate +
connate +  and distinct +
subequal +
scarious +
usually ovate +  and lanceolate +
usually deltate +  and lanceolate +
corymbiform +  and paniculiform +
indeterminate +  and determinate +
Lowell E. Urbatsch +  and Patricia B. Cox +
(Torrey & A. Gray) C. L. Boynton & Beadle +
sessile +  and petiolate +
10 cm100 mm <br />0.1 m <br /> (25 cm250 mm <br />0.25 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
attenuate +
Echinacea atrorubens var. graminifolia +
compound +  and simple +
narrowly lanceolate;elliptic +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
barbellulate +  and barbellate +
1 cm10 mm <br />0.01 m <br /> (25 cm250 mm <br />0.25 m <br />) +
0.2cm +  and 1cm +
Grassleaf coneflower +
maroon +  and orangish red +
0.39 cm3.9 mm <br />0.0039 m <br /> (0.44 cm4.4 mm <br />0.0044 m <br />) +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
hairy +  and glabrous +
flattened +, fusiform-terete +  and obpyramidal +
fertile +  and bisexual +
fertile +  and bisexual +
1 cm10 mm <br />0.01 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
8mm;15mm +
0–30 m +
hirsute +  and glabrous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Wet, sandy flatwoods sites +
discoid +  and radiate +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
0.1 cm1 mm <br />0.001 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
fusiform;turbinate or broadly campanulate +
10mm;25mm +
elliptic +  and obovate +
sessile +  and petiolate +
not glaucous +
greenish;yellowish +
deltate +  and lance-linear +
2-carpellate +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
persistent +
0 +  and 2 +
coroniform +
0 cm0 mm <br />0 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
Flowering spring–fall. +
3 +  and 21 +
0 cm0 mm <br />0 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Biltmore Bot. Stud. +
bearing subulate enations +, hairy +  and bristly +
pitted +  and smooth +
hemispheric;ovoid +
connate +  and distinct +
2 +  and 5 +
exalbuminous +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Compositae +
Rudbeckia graminifolia +
Rudbeckia sect. Rudbeckia +
species +
cylindric +
entire +  and toothed +
100 cm1,000 mm <br />1 m <br /> (200 cm2,000 mm <br />2 m <br />) +
0 cm0 mm <br />0 m <br /> (80 cm800 mm <br />0.8 m <br />) +
shrub +  and subshrub +