Argyrolobium tomentosum

Argyrolobium tomentosum (Andrews) Druce

Velvety Yellow Bush Pea

Afr

isiZulu

umadlozana, umlomomnandi

IsiXhosa

Description

Family:

Fabaceae

Order:

Fabales

Description

Hardy, evergreen shrub (0.6–2 m), scrambling or upright, with attractive trifoliate leaves.

Bright yellow pea-like flowers, that sometimes turn orange to red as they age. Flowers are profuse in spring-summer. Some varieties flower all year.

Flowers attract insects and birds.

Used as screen, hedge, or for scrambling over trees.

Plant Details

Height

0.6–2 m

Thorns

Absent

Soil

Loamy, compost-rich, well-drained

Fast 

Growth Rate

0.6–2 m

Size

Scrambles as long as conditions are suitable.

Lifespan

Flower Colour

Flowering Season

, , ,

Horticultural Zones

6–7

pH

Loamy, compost-rich, well-drained

Soil

Semi-shade 

Aspect

Frost hardy; does not survive severe frost

Frost Tolerance

Drought hardy 

Drought Resistance

Companion Plants

Still to be added

Caterpillars

Moth: Uresiphita gilvata, Butterfly: Actizera lucida (Rayed Blue)

Associations

Descriptions

Insects: Flowers attract insect pollinators.

Wildlife: Seeds are eaten and then dispersed by birds and small animals.

Soil: Likely a nitrogen fixer (Fabaceae).

Ecosystem Services: Soil improvement, forms a cover for ground birds and animals, supports pollinators.

Flowers and fruits

As with most keeled flowers, the flower hides the pollen and only releases it to specific pollinators as a mechanism to increase the chances that its pollen is not wasted on flowers from a different species of plant.

The keel is formed by the lower two petals being fused into a protective layer that encloses the reproductive organs (the pollen-producing stamens and ovum-producing pistil).
To access nectar, a pollinator such as a megachilid, or other large-bodied bees,  needs to push the keel down, triggering the release of pollen from the stamens, depositing the pollen on the pollinator’s body. When the pollinator visits another argyrolobium flower, the pollen will be in the right position to stick to the tip of the style/pistil of the flower.

This interaction is a form of floral filtering, where the flower’s structure selects for efficient pollinators and excludes nectar robbers or ineffective visitors. It also contributes to reproductive isolation and speciation, especially in biodiverse regions such as Southern Africa.

 

The bright yellow to orange flowers attract insects. Seeds dispersed by birds/small mammals

Birds

Seeds are dispersed by birds and other animals.

By Seeds:

Sow fresh seeds in a seedling mix. High germination success rates.

By Cuttings:

Easily propagated, using cuttings from the stems. Roots grow from the nodes.

Traditional Uses

Traditional Uses: Used by diviners to strengthen divining powers

 

Plant Details

Height

Description

Thorns

Description

Leaves

Description

Size

Growth Form

Size

Size

Size

Lifespan

Size

Flower Colour

Size

Flowering Season

Size

Horticultural Zones

Size

pH

Size

Soil

Size

Aspect

Size

Frost Tolerance

Size

Drought Resistance

Description

DESCRIPTION

Height

DESCRIPTION

Leaves

DESCRIPTION

Thorns

DESCRIPTION

BSS

Ecoscore

Host plant Nectar Grazing

Link to PlantzAfrica.co.za

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Distribution

Companion Plants

Description

Caterpillars

Associations

Leaves

Leaves

Flowers and fruits

Leaves

Birds

Leaves

Mammals

Leaves

By Seeds:

Leaves

By Cuttings:

Leaves

Traditional Uses

traditional uses