Scientific Name:
Trillium ovatum
Pronunciation:
TRIL-ee-um oh-VAY-tum
Common Name:
western wakerobin, western trillium
Family Name:
Melanthiaceae
Plant Type:
Herbaceous perennial
Key ID Features:
Leaves in a whorl of 3 on top of a smooth, unbranched, green stem, mostly ovate-rhomboid, (5-)7-12(-18)cm long, often as wide, unstalked or with short petioles, margins entire, dies back in summer; flowers solitary with three ovate or egg-shaped petals, white turning pale pink to purple with age, sometimes pinkish initially, each 1.5-7cm long x 1-4cm wide, 3 green leaf-like sepals; capsules berry-like, ovate, green to yellowish. E-Flora BC
Habit:
Upright
Form:
Oval - horizontal
Texture:
Coarse
Mature Height:
0.2 - 0.4m
Mature Spread:
0.1 - 0.3m
Growth Rate:
Fast
Origin:
B.C. east of Cascades, B.C. west of Cascades, U.S. - northwest, U.S. - southwest
Hardiness Rating:
Zone 5: (-29 to -23 °C)
Exposure:
Part sun/part shade, Filtered shade
Soil/Growing Medium:
Landscape Uses:
Perennial border
Additional Info:
Leaf Morphology:
Form:
Simple
Arrangement:
Whorled
Texture/Venation:
Soft flexible
Surfaces:
Glabrous
Colour in Fall:
Yellow
Shapes:
Ovate, Rhomboidal
Apices:
Acuminate
Bases:
Rounded
Margins:
Entire
Additional Info:
Botanically, the 3 "leaves" are flower bracts on top of a peduncle; venation is not typical for a monocot
Inflorescence Type:
Flowers solitary
Flower Morphology:
Flowers perfect
Number Of Petals:
3
Corolla Shape:
Rotate/stellate
Ovary Position:
Superior
Colour (petals):
Showy, White, Purple, Pink
Flower Time at Peak:
Apr, May
Fruit Type:
Capsule
Fruit Colour:
Dark-red, Brown
Fruiting Time:
Jun, Jul
Bark or Stem Colour:
Organ Modifications:
Rhizomes
Pest Susceptibility:
Slugs or snails (Pest resistant, Disease resistant)
Course(s):
- HORT 2355
Location(s):
- (MCF) Main Courtyard Fountain
- (ONW) Overpass North side West