Goldencreeper, Thladiantha dubia
Life Cycle
Perennial.Propagation
Reproducing almost exclusively from fleshy, underground, potato-like tubers.Stems
Its stems are slender and somewhat twining, can grow up to 1-2m long but mostly climbing over other plants by means of tendrils.Leaves
Leaves alternate (1 per node), short-stalked, broadly heart-shaped, about 7.5-15 cm long, with a deep, rounded, U-shaped base, smooth margins, a slender, stretched-out tip, and rough-hairy on both surfaces.Flowers and Fruit
Flowers showy, bright yellow, 15-25mm across, somewhat resembling the shape of the male (pollen-producing) flowers of the cultivated cucumber. Canadian plants have only male (pollen-producing) flowers; the female (seed-producing) plant apparently has not been introduced. Flowers from July to September.Habitat
Goldencreeper occurs in scattered localities in southern Ontario. It persists in old gardens where it was introduced as an ornamental and spreads through lawns, gardens, along roadsides, in waste places and into cultivated fields.Distinguishing Features
It is distinguished by its rough-hairy, heart-shaped leaves with deep, rounded, U-shaped bases and stretched-out tips, climbing by tendrils, its bright yellow flowers, and reproducing only by very persistent, widely spreading, fleshy, underground, potato-like tubers which make it extremely difficult to eradicate.Media Items
Figure 1: Goldencreeper in Central Ontario field setting in mid June. Top
Figure 2: Top
Figure 3: Goldencreeper plant with potato-like tuber. Top
Figure 4: Potato-like tuber of goldencreeper. Top
Figure 5: Heart-shaped leaf with deep, rounded, U-shaped base and stretched-out tip. Top
Figure 6: Tendrils of goldencreeper. Top
Figure 7: Hairy stem on goldencreeper. Top
Figure 8: Yellow male flowers of goldencreeper. Top
Figure 9: Top
Figure 10: Control Observations with Callisto + atrazine.
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