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Yellow flax

How to identify Yellow flax (Reinwardtia indica)

Yellow flax

This shrub reaches up to 3 feet tall (91 cm) and features oval, bright green leaves. It is characterized by its production of vibrant, golden-yellow flowers throughout the winter months, typically from November to February. The flowers are wide, funnel-shaped, and the bloom of each lasts just one day. However, they appear successively so that new blossoms continuously replace those that have faded. It thrives in sunny to lightly shaded areas and prefers moist soil, tolerating temperatures down as low as 25-30°F (-4 to -1°C).

Lifespan

Lifespan: Perennial

Plant Type

Plant Type: Shrub

Leaf Type

Leaf Type: Evergreen

Quickly Identify Yellow flax

1

Vibrant golden-yellow flowers bloom successively in winter.

2

Capsules transition from green to brown, split open when ripe.

3

Leaves are oblong, smooth, and exhibit a pinnate vein pattern.

4

Shrub reaches up to 3 feet tall (91 cm) with oval green leaves.

5

Flowers measure 1 inch (2.5 cm) across, five-petaled, and soft-textured.

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Detailed Traits of Yellow flax

Leaf Features

The leaves of yellow flax are oblong to elliptic, sometimes obovate or oblong-ovate, measuring 2 - 8 cm (0.8 - 3.1 inches). They exhibit a green hue and a smooth texture. The vein pattern is pinnate, providing prominent central and secondary veins. The leaf margins are entire, contributing to their clean, streamlined appearance. These features make yellow flax leaves easily recognizable and distinctive.

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Flower Features

The flowers of yellow flax are showy, with a bright yellow to golden yellow hue. Each flower measures about 1 inch (2.5 cm) in diameter. The petals are arranged in a radial fashion, forming an open, cheerful, and inviting bloom. The flowers are typically five-petaled, and they exhibit a soft texture. These blooms do not possess a strong scent but are visually striking, making them a charming addition to any garden. Yellow flax flowers bloom primarily in winter, adding vibrant color at a time when many other plants are dormant.

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Fruit Features

The fruit of yellow flax is a capsule, typically a dry, dehiscent structure that splits open when ripe to release seeds. It is distinguished by its elongated shape and a texture that becomes papery or woody at maturity. The color transitions from green to brown as it matures. Capsules may measure up to 1-2 inches (2.5-5 cm) in length. Each capsule contains multiple compartments, where the seeds are securely housed until dispersion. The seeds themselves are small, facilitating dispersal by wind or other natural mechanisms.

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Key Facts About Yellow flax

Attributes of Yellow flax
Lifespan
Perennial
Plant Type
Shrub
Leaf Color
Green
Flower Color
Yellow
Gold
Leaf type
Evergreen
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Scientific Classification of Yellow flax

Family
Flax
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Species
Yellow flax (Reinwardtia indica)
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Distribution Map of Yellow flax

The plant yellow flax is native to Southeast Asia and thrives in subtropical regions. Beyond its endemic range, yellow flax has been introduced to and cultivated in parts of the Pacific and East Asia, where it has adapted to local environments. As a cultivated species, yellow flax has expanded its presence beyond its natural habitat, flourishing in gardens and controlled settings.
Native
Cultivated
Invasive
Potentially invasive
Exotic
No species reported
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