Scientific Name:
Inula helenium
Pronunciation:
IN-you-luh huh-LEE-nee-um
Common Name:
elecampane
Family Name:
Asteraceae
Plant Type:
Herbaceous perennial
Key ID Features:
Leaves on stem alternate, petiolate or sessile and clasping, serrate, woolly undersides, large (up to 30cm long x 12cm wide); head about 7cm wide with long, narrow, yellow ray floret corollas (50-100 per head).
Habit:
Upright
Form:
Pyramidal - widely
Texture:
Coarse
Mature Height:
0.7 - 1.3m
Mature Spread:
0.6 - 1.0m
Growth Rate:
Fast
Origin:
Central / west Asia, Europe
Hardiness Rating:
Zone 4: (-34 to -29 °C)
Exposure:
Full sun
Soil/Growing Medium:
Landscape Uses:
Medicinal plant, Summer interest
Additional Info:
Google. Compare to Telekia speciosa.
Leaf Morphology:
Form:
Simple
Arrangement:
Alternate, Basal
Texture/Venation:
Soft flexible
Surfaces:
Pubescent, Tomentose
Shapes:
Elliptic, Ovate
Apices:
Acute
Bases:
Attenuate, Sheathing
Margins:
Serrate, Undulate (wavy)
Inflorescence Type:
Head (capitulum), Floriferous
Flower Morphology:
Flowers perfect
Corolla Shape:
Ligulate
Ovary Position:
Inferior
Colour (petals):
Showy, Yellow
Flower Time at Peak:
Jun, Jul
Fruit Type:
Cypsela (achene + calyx)
Fruit Colour:
Brown, Silver
Fruiting Time:
Aug, Sep
Bark or Stem Colour:
Green
Organ Modifications:
Rhizomes
Propagation:
Seed, Division - below ground parts
Pest Susceptibility:
(Pest resistant, Disease resistant)
Course(s):
- not used (on campus)
Location(s):
- (BUG) BUG garden : under apple tree
- (WDH) Wark-Dumais House : along north fence