Details of...
Scientific Name: Trifolium dubium
Pronunciation: try-FOE-lee-um doo-BEE-um
Common Name: yellow clover, small hop clover
Family Name: Fabaceae
Plant Type: Weed (horticultural), Annual
Key ID Features: Leaves alternate, leaflets 3, egg- to heart-shaped, 5-15 mm long, shallowly toothed on the upper half, glabrous; inflorescence a dense, globe-shaped, short-stalked, axillary head of 3 to 20 drooping, pea-like flowers, the heads 6-8 mm wide and lacking an involucre; corollas yellow turning brown, 3-3.5 mm long, the banner hood-like, folded over the pod, longer than the wings and keel; calyces 1/2 as long as the corollas, glabrous, 5-veined, the teeth lanceolate, the upper pair wider but less than 1/2 as long as the lower three; legumes egg-shaped, enclosed by the persistent corolla; seeds 1. (E-flora BC)
Course(s): not used (on campus)

Habit: Horizontal
Form: Creeping / Mat-like
Texture: Medium - fine
Mature Size:
Height:0.2 - 0.4m
Spread:0.3 - 0.6m
Growth Rate:Fast
Origin: Europe
Hardiness Rating: Zone 7: (-18 to -12 C)
Exposure: Full sun, Part sun/part shade
Soil/ Growing Medium:
Landscape Uses: Attract beneficial insects
Additional Info: Google. Compare to T. procumbens.
yellow clover, small hop clover
Leaf Morphology: Glossary
Form: Compound
Arrangement: Alternate
Texture/ Venation: Soft flexible
Surfaces: Glabrous
Compound Leaf: Trifoliate (ternate)
Colour in Fall: Yellow
Leaf(let) Terms:
Shapes: Obovate
Apices: Rounded
Bases: Attenuate
Margins: Serrulate

Inflorescence Type: Head-like, Raceme
Flower Morphology:Flowers perfect
Number of Petals:5
Corolla Shape:Bilabiate
Ovary Position:Superior
Colour (petals): Showy, Yellow
Flower Time at Peak: May, Jun, Jul

Fruit Type: Legume
Fruit Colour: Brown
Fruiting Time: Jul, Aug
Additional Info: Not showy

Bark Morphology: Smooth
Bark or Stem Colour: Red, Green
Organ Modifications: Root nodules (N-fixing)

(WDY) WeeDY location
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