Senecio angulatus


Succulentopedia

Senecio angulatus (Climbing Groundsel)

Senecio angulatus (Climbing Groundsel) is a scrambling or twining succulent that grows as a dense, tangled, up to 6.6 feet (2 m) tall…


Contents

  • 1 Description
    • 1.1 Leaves and stems
    • 1.2 Inflorescence
    • 1.3 Fruits and reproduction
  • 2 Cultivation
  • 3 Distribution
    • 3.1 Habitat
  • 4 Common names
  • 5 Gallery
  • 6 References
  • 7 External links

Leaves and stems Edit

Its form is a dense tangled shrub 2 metres (6.6 ft) tall [14] or a climber that can reach 6 metres (20 ft) high, if suitable support is available. [11] The leaves are rhombic to ovate, 3.7 centimetres (1.5 in) to 22 centimetres (8.7 in) long and 1 centimetre (0.39 in) to 14 centimetres (5.5 in) wide and occur in 1-4 pairs. They are thick, glossy, fleshy and coarsely toothed (but not entirely), with one to three teeth each side [4] and bluntly lobed, [14] with upper leaves becoming smaller with fewer teeth or none at all. [4] They have a frosted look from a powdery coating on the lower side. [5]

Leaf stalks are 1 centimetre (0.39 in) to 4 centimetres (1.6 in) long. [15] The leaves have stalks or stems which embrace the larger leaf surface which is not lobed, oval to triangularly shaped or very blunt to pointed at the tips and blunt to flat at the base. The leaves have a frosted look from a powdery coating on the lower side. [5]

The stems are succulent, pale green, and are often variegated with pale yellow green and purple. They are slightly angular [5] (not upright) and usually sparingly branched. [4] Neither stems nor leaves are hairy. [4] [5] [15]

Inflorescence Edit

Senecio angulatus produces numerous flowers [5] in open clusters at the end of its branches or stems. [4] The honey-scented flowers are on an elongated stem that continue to open in succession from the base up as the stem continues to grow. The mass of clusters end more flat at the top than pyramid-like, [5] and are 4 centimetres (1.6 in) to 8 centimetres (3.1 in) in diameter. [15] Often the cluster droops with the flower heads at the end of the cluster turning upwards. [5]

Flower stalks are mostly hairless or with some short hairs, 6.5 millimetres (0.26 in) to 10.5 millimetres (0.41 in) long. Flower heads are attached to flower stalk by fine pointed 8-11 bracts 5 millimetres (0.20 in) to 6 millimetres (0.24 in) [4] which are surrounded by 4-7 pale green and sometimes purple tinged at the base supplementary bracts, 1.5 millimetres to 2.5 millimetres which make a cup shape around the base of the involucre. [5] Each stalk is capable of producing 10-15 disc florets. [15]

Flower-heads are radiate and urn-shaped. [15] Ray florets are nearly always absent. [5] When they occur, there is a yellow ligule. The corolla has a yellow disc [4] surrounded by 4–6 dull golden yellow disc florets 5.5 millimetres (0.22 in) to 9.5 millimetres (0.37 in) long with hairless tubes, a slight expansion below the middle and lobes 1.3 millimetres to 2 millimetres wide. [5] S. angulatus flower heads have rays [4] (that look like petals) that make it more daisy-like [14] unlike D. odorata which doesn't. [15]

It flowers from April to May in Southern Africa [11] and May to July in Australia and New Zealand. [15]

Fruits and reproduction Edit

Creeping groundsel is easily dispersed by wind-blown seed, stem fragments, and dumped garden waste. [14] Achenes are 3 millimetres to 4 millimetres long, [4] [5] ribbed or grooved with short hairs in the grooves [4] [5] and a tapering cylindrical shape. [4] [15] The parachute-like hairs, the pappus, are 5 millimetres to 7 millimetres long. [4] [15]

The plant is cultivated in parts of North Africa, Southern Europe and the Levant. [16] [17] It was introduced in Malta in the 15th century as an ornamental plant. [18] In Queensland, climbing groundsel may have increased in popularity following the Boer War, as there were anecdotal accounts that it was introduced from South Africa by the soldiers who returned to Australia after 1902. Moreover, it was displayed in garden pillars in Brisbane newspapers between 1906 and 1910, praising the plant for the beauty of both its foliage and its yellow clusters of blooms. Though these reports may have falsely applied the S. angulatus name to Senecio tamoides, which was a weed at that time on the east coast. [19]

The plant was collected as a weed in Melbourne's southern suburb of Mornington in 1936, and was displayed in newspaper column submissions in areas between Bendigo and Swan Hill in the 1940s and 1950s. In Melbourne metropolitan area, it became prevalent on coastal banks and on decomposed rock gullies of suburban creeks. [19]

The plant grows in USDA hardiness zones 9a through 11b and is medium to fast-growing. Very drought tolerant, it would flourish better with some water in the summer and would bloom more often in full sun. It can grow indoors as a houseplant, provided it gets some sunlight. Pruning is necessary as the plant can become limp when it gets taller. [20]

Propagation can be done by cuttings (as the plant easily roots from the branch tips), and this is to be conducted between spring and fall (since it is somewhat winter dormant). [21] [22] Seeds prefer consistent moisture and warm temperatures to germinate. Annual fertilisation is necessary, though not mandatory. Pests include aphids.

It is native to the Cape Province in South Africa, but is naturalized in parts of South Italy, France, Portugal and some coastal areas in southeastern Australia. [2] [15] It is invasive in New Zealand and an environmental weed in Victoria, Australia. [10] [23] Because it is aggressive, it can smother the existing native vegetation both in the ground layer and canopy, thus altering the light climate in the invaded community and sometimes suppress the regeneration of native plants. [14]

Afrotropic Southern Africa: South Africa (Cape Province)


How to Grow Senecio Succulents

Senecio plants are generally planted from nursery plants or by simply embedding cuttings from a parent plant into soil. Seeds require warm temperatures (at least 55 degrees Fahrenheit) and constant moisture to germinate.

In the warm-climates garden, Senecio succulents should be planted in sandy soil in a location that receives very bright indirect light. When growing in patio or deck containers in cooler climates, they prefer a full sun location. Potted plants prefer a potting mix tailored for succulents.

Established plants are extremely drought tolerant. They do need some water during the summer, but be careful to not leave the soil wet for prolonged periods. Allow the soil to dry out between waterings in the winter, when the plants are somewhat ​dormant.

To prevent floppiness in taller varieties, you can prune them back to where the stem is firm. Early spring is an ideal time for trimming, dividing, and repotting.


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Creeping Groundsel is a bushy climber with large clusters of sweet-scented, yellow flowers. It has bright green, squarish, somewhat succulent leaves.


Senecio angulatus

Senecio angulatus, also known as creeping groundsel [7] and sometimes as Cape ivy, [8] is a succulent plant from the family Asteraceae of the genus Senecio that is native to South Africa. [9] It is a scrambling [10] and a twining herb [11] that can become an aggressive weed once established, making it an invasive species in some countries. [4] However, it is grown as an ornamental plant for its satiny foliage and sweet-scented flowers. [12]

Sources: IPNI, [1] AFPD, [2] GRIN, [3] NZPND, [4] ALUKA [5] The Plant List [6]

Senecio angulatus can be distinguished vegetatively from Delairea odorata by the lack of lobes at the leaf stalk base, the fleshy leaf surface and the outwardly curved leaf teeth. [4] Senecio tamoides has been misapplied in Australia and is currently considered to be Senecio angulatus. [13]


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