Rudbeckia fulgida

Rudbeckia fulgida
Rudbeckia fulgida
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Asterales
Family: Asteraceae
Genus: Rudbeckia
Species: R. fulgida
Binomial name
Rudbeckia fulgida
L. (Aiton)

Rudbeckia fulgida Orange Coneflower, is a perennial plant native to eastern North America.

Contents

Description

Rudbeckia fulgida are perennial herbaceous plants growing up to 120 cm tall, growing from rosettes that develop at the end of stolons.

Growth and reproduction

In the garden, this plant spreads aggressively by both stoloniferous stems and seed. The seeds are produced in fruits called cypselae, which are 2.2 to 4 mm long and have short coroniform pappi, 0.2 mm long. [1] The ripe seed is a favorite food of finches in winter.

Morphology

Stems are hairy, ridged, and dark green. Leaves are dark green, sparsely but roughly haired, simple, with sparsely serrate margins. Flowers are heads, with black disk florets and bright orange ray florets, borne singly on stems that extend above the foliage. Stems are glabrous or moderately covered in hirsute hairs with spreading branches. The leaves have blades that are lanceolate to broadly ovate or elliptic in shape with out lobes. The leaf bases are attenuate to cordate in shape and the margins of the leaves are usually entire or serrate, or sometimes lacerate. The upper surfaces of the leaves are glabrous or have hirsute to strigose hairs. The basal leaves are petiolate, with petioles that are 5 to 30 cm long and 1 to 8 cm wide, the cauline or stem leaves have petioles that are 2 to 25 cm long and 0.5 to 7 cm wide, the bases are attenuate to cordate or auriculate in shape.

The flower heads are often produced one per stem but are also often produced in corymbiform arrays with 2 to 7 flowers per stem. The cups that hold the flowers called receptacles, are hemispheric to ovoid in shape with paleae 2.5 to 4 mm long, the apices are obtuse to acute in shape with the ends usually glabrous and the apical margins ciliate. The flower heads have 10 to 15 ray florets with laminae elliptic to oblanceolate in shape and 15–25 cm long and 3 to 6 mm wide. The abaxially surfaces of the laminae have strigose hairs. The flower discs or center cones are 12 to 16 mm tall and 10 to 18 mm wide, made up of 50 to over 500 disc florets, with the corollas proximally yellowish green and brown-purple distally in color, 3 to 4.2 mm long, having style branches 1.3 mm long.

Cultivation

There are seven varieties;

  • R. fulgida var. deamii (S. F. Blake) Perdue - Deam's coneflower
  • R. fulgida var. fulgida Aiton - orange coneflower
  • R. fulgida var. palustris (Eggert ex C.L. Boynt. & Beadle) Perdue - orange coneflower, prairie coneflower
  • R. fulgida var. spathulata (Michx.) Perdue - orange coneflower
  • R. fulgida var. speciosa (Wender.) Perdue - orange coneflower
  • R. fulgida var. sullivantii (C.L. Boynt. & Beadle) Cronquist - Sullivant's coneflower
  • R. fulgida var. umbrosa (C.L. Boynt. & Beadle) Cronquist - orange coneflower

[2]

Cultivars include Goldsturm (sometimes misspelled as Goldstrum). [3]

References

  1. ^ Rudbeckia fulgida in Flora of North America @ efloras.org
  2. ^ ITIS Report: Rudbeckia fulgida Aiton
  3. ^ heritage Perennials: Rudbeckia fulgida Goldsturm

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Look at other dictionaries:

  • Rudbeckia fulgida — Gewöhnlicher Sonnenhut Gewöhnlicher Sonnenhut (Rudbeckia fulgida var. sullivantii Goldsturm ) Systematik Ordnung …   Deutsch Wikipedia

  • Rudbeckia fulgida — žėrinčioji rudbekija statusas T sritis vardynas apibrėžtis Astrinių šeimos dekoratyvinis, vaistinis augalas (Rudbeckia fulgida), paplitęs Šiaurės Amerikoje. atitikmenys: lot. Rudbeckia fulgida angl. orange coneflower šaltinis Valstybinės lietuvių …   Lithuanian dictionary (lietuvių žodynas)

  • Rudbeckia fulgida — ID 73285 Symbol Key RUFU2 Common Name orange coneflower Family Asteraceae Category Dicot Division Magnoliophyta US Nativity Native to U.S. US/NA Plant Yes State Distribution AL, AR, CT, DC, DE, FL, GA, IL, IN, KY, MA, MD, MI, MO, MS, NC, NJ, NY,… …   USDA Plant Characteristics

  • Rudbeckia fulgida var. fulgida — ID 73288 Symbol Key RUFUF Common Name orange coneflower Family Asteraceae Category Dicot Division Magnoliophyta US Nativity Native to U.S. US/NA Plant Yes State Distribution AL, DC, DE, FL, GA, IL, IN, KY, MD, MO, NC, NJ, NY, OH, PA, SC, TN, VA,… …   USDA Plant Characteristics

  • Rudbeckia fulgida var. deamii — ID 73286 Symbol Key RUFUD Common Name Deam s coneflower Family Asteraceae Category Dicot Division Magnoliophyta US Nativity Native to U.S. US/NA Plant Yes State Distribution IL, IN, OH Growth Habit Forb/herb Durati …   USDA Plant Characteristics

  • Rudbeckia fulgida var. palustris — ID 73295 Symbol Key RUFUP Common Name prairie coneflower Family Asteraceae Category Dicot Division Magnoliophyta US Nativity Native to U.S. US/NA Plant Yes State Distribution AR, MO, OK, TX Growth Habit Forb/herb D …   USDA Plant Characteristics

  • Rudbeckia fulgida var. speciosa — ID 73297 Symbol Key RUFUS3 Common Name orange coneflower Family Asteraceae Category Dicot Division Magnoliophyta US Nativity Native to U.S. US/NA Plant Yes State Distribution AL, AR, CT, DE, GA, IL, IN, KY, MA, MI, MO, NJ, NY, OH, PA, VA, WI, WV… …   USDA Plant Characteristics

  • Rudbeckia fulgida var. umbrosa — ID 73303 Symbol Key RUFUU Common Name orange coneflower Family Asteraceae Category Dicot Division Magnoliophyta US Nativity Native to U.S. US/NA Plant Yes State Distribution AL, AR, GA, IN, KY, MO, MS, NC, OH, SC, TN, VA Growth Habit Forb/herb …   USDA Plant Characteristics

  • Rudbeckia fulgida Aiton var. fulgida — Symbol RUFUF Common Name orange coneflower Botanical Family Asteraceae …   Scientific plant list

  • Rudbeckia fulgida Aiton — Symbol RUFU2 Common Name orange coneflower Botanical Family Asteraceae …   Scientific plant list

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