Rudbeckia hirta var. angustifolia

(T. V. Moore) Perdue

Rhodora 59: 296. 1958.

Endemic
Basionyms: Rudbeckia floridana var. angustifolia T. V. Moore Pittonia 4: 176. 1900
Synonyms: Rudbeckia divergens T. V. Moore
Treatment appears in FNA Volume 21. Treatment on page 57.

Annuals, biennials, or perennials. Stems branched mostly at or near mid heights, leafy toward bases. Leaves: basal blades oblanceolate, 0.5–2.5 cm wide; cauline narrowly elliptic (smaller distally); margins entire or serrate; faces hispid to ± sericeous. Peduncles at least 1/2 plant heights. 2n = 38.


Phenology: Flowering spring–summer.
Habitat: Meadows, pastures, old fields, roadsides
Elevation: 20–80 m

Distribution

V21-123-distribution-map.gif

Ala., Fla., Ga., La., Miss., S.C., Tex.

Discussion

Variety angustifolia grows along the Gulf coastal plain.

Selected References

None.

Lower Taxa

None.

hirsute +  and hispid +
not tailed +, rounded +  and obtuse +
connate +  and distinct +
subequal +
scarious +
usually ovate +  and lanceolate +
usually deltate +  and lanceolate +
indeterminate +  and determinate +
Lowell E. Urbatsch +  and Patricia B. Cox +
(T. V. Moore) Perdue +
oblanceolate +
0.5 cm5 mm <br />0.005 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
attenuate +  and cuneate +
Rudbeckia floridana var. angustifolia +
compound +  and simple +
3 cm30 mm <br />0.03 m <br /> (20 cm200 mm <br />0.2 m <br />) +
ovate;lanceolate;ovate;lanceolate;elliptic +
0.4cm;4cm +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
barbellulate +  and barbellate +
sessile +  and petiolate +
yellowish green +
0.3 cm3 mm <br />0.003 m <br /> (0.42 cm4.2 mm <br />0.0042 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 +
1.2 cm12 mm <br />0.012 m <br /> (2.2 cm22 mm <br />0.022 m <br />) +
10mm;20mm +
Ala. +, Fla. +, Ga. +, La. +, Miss. +, S.C. +  and Tex. +
20–80 m +
hispid +  and more or less sericeous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Meadows, pastures, old fields, roadsides +
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 +
15mm;45mm +
abaxially hispid +  and hirsute +
elliptic +  and oblong or oblanceolate +
5mm;10mm +
sessile +  and petiolate +
not glaucous +
greenish;yellowish +
deltate +  and lance-linear +
serrate +  and entire +
2-carpellate +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
persistent +
0 +  and 2 +
coroniform +
Flowering spring–summer. +
3 +  and 21 +
0 cm0 mm <br />0 m <br /> (3 cm30 mm <br />0.03 m <br />) +
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 />) +
Rudbeckia divergens +
Rudbeckia hirta var. angustifolia +
Rudbeckia hirta +
variety +
cylindric +
entire +  and toothed +
100 cm1,000 mm <br />1 m <br /> (200 cm2,000 mm <br />2 m <br />) +
perennial +, biennial +  and annual +
0 cm0 mm <br />0 m <br /> (100 cm1,000 mm <br />1 m <br />) +