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Rudbeckia hirta
L.
var.
pulcherrima
Farw.
Black-eyed Susan
Asteraceae — Aster family
Native
White Clay Creek State Park -- Judge Morris Estate
June 2001
White Clay Creek State Park -- Judge Morris Estate
July 2014
I suspect some wildflower seed was used along the Whitely Farms Trail, where I found the plants with brown markings on the petals.
White Clay Creek State Park -- Possum Hill
October 2017
Britton, N.L., and A. Brown. 1913.
An illustrated flora of the northern United States, Canada and the British Possessions. 3 vols.
Charles Scribner's Sons, New York. Vol. 3: 470. Provided by
Kentucky Native Plant Society
. Scanned by
Omnitek Inc
.
Usage Requirements
.
Rudbeckia hirta
blackeyed Susan
This plant can be weedy or invasive according to the authoritative sources noted below.This plant may be known by one or more common names in different places, and some are listed above. Click on an acronym to view each weed list, or click here for a composite list of
Weeds of the U.S.
Everitt, J.H., D.L. Drawe, and R.I. Lonard. 1999.
Field guide to the broad leaved herbaceous plants of South Texas used by livestock and wildlife
. Texas Tech University Press. Lubbock.
Miller, J.H., and K.V. Miller. 1999.
Forest plants of the southeast and their wildlife uses
. Southern Weed Science Society.
19.
Rudbeckia hirta
Linnaeus, Sp. Pl. 2: 907. 1753.
Black-eyed Susan
Annuals, biennials, or perennials,
to 100 cm (taprooted or roots fibrous).
Stems
hispid to hirsute (hairs spreading, 1+ mm).
Leaves:
blades elliptic, lanceolate, or ovate (not lobed), bases attenuate to cuneate, margins entire or serrate, apices acute, faces hispid to hirsute; basal petiolate, blades 8—30 × 0.5—7 cm; cauline petiolate or sessile, blades (sometimes pandurate) 3—20 × 0.4—4 cm.
Heads
borne singly or (2—5) in loose, corymbiform arrays.
Phyllaries
to 3 cm (faces hispid to hirsute).
Receptacles
hemispheric to ovoid; paleae 4—6 mm, apices acute, often attenuate, abaxial tips hirsute to hispid.
Ray florets
8—16; laminae (usually uniformly yellow to yellow-orange or with a basal maroon splotch, sometimes mostly maroon) elliptic to oblong or oblanceolate, 15—45 × 5—10 mm, abaxially hispid to hirsute.
Discs
12—22 × 10—20 mm.
Disc florets
250—500+; corollas proximally yellowish green, distally brown-purple, 3—4.2 mm; style branches ca. 1.5 mm, apices subulate.
Cypselae
1.5—2.7 mm;
pappi
0.
Varieties 4 (4 in the flora): e North America.
Some strains of
Rudbeckia hirta
are cultivated and/or used in seed mixes for "re-naturalization" and erosion control.
Query:
SELECT * FROM img WHERE ready=1 and taxon like "Rudbeckia hirta var. pulcherrima%" and (lifeform != "specimen_tag" OR lifeform != "Plant") ORDER BY taxon
Using these photos:
A variety of organizations and individuals have contributed photographs to CalPhotos. Please follow the usage guidelines provided with each image. Use and copyright information, as well as other details about the photo such as the date and the location, are available by clicking on the
[detail]
link under the thumbnail. See also:
Using the Photos in CalPhotos
.
Rudbeckia hirta
Black-eyed Susan
ID: 0000 0000 0305 0451
[detail]
2005 Nick Kurzenko
Using these photos:
A variety of organizations and individuals have contributed photographs to CalPhotos. Please follow the usage guidelines provided with each image. Use and copyright information, as well as other details about the photo such as the date and the location, are available by clicking on the
[detail]
link under the thumbnail. See also:
Using the Photos in CalPhotos
.
Number of matches
: 3
Query:
SELECT * FROM img WHERE ready=1 and taxon like "Rudbeckia hirta var. angustifolia%" and (lifeform != "specimen_tag" OR lifeform != "Plant") ORDER BY taxon
Using these photos:
A variety of organizations and individuals have contributed photographs to CalPhotos. Please follow the usage guidelines provided with each image. Use and copyright information, as well as other details about the photo such as the date and the location, are available by clicking on the
[detail]
link under the thumbnail. See also:
Using the Photos in CalPhotos
.
