Toxicodendron succedaneum       18959

Author: (Carl von Linné (1707-1778)) Otto Kuntze (1843-1907)
Family: Anacardiaceae Subfamily: Anacardioideae
Genus: Toxicodendron
Synonym(s): Rhus succedanea
English name: Japanese wax tree
Zone: Asia

Description
This is a native of Asia, although it has been planted elsewhere, most notably Australia and New Zealand. It grows in coastal indigenous vegetation, urban gardens, and wasteland.
Toxicodendron succedaneum Observed in Chinese Taipei by Wen-Hsiang Cheng (license)
Botanical Description
This is a dioecious, deciduous, sometimes suckering small tree, up to 8m tall. The sap is poisonous.

The leaves are alternate, imparipinnate, glabrous, 200-400mm long (longest at the sapling stage), with 4-6 paired leaflets, and usually 1 terminal leaflet. The leaflets are recurved to drooping, 60-80 x 15-25mm, narrow-ovate to lanceolate, base oblique, apex long-acuminate, dark green to grey green (often suffused with red) above, often glaucous beneath. The seedling leaflets are strongly toothed, adults entire. The petiole, rachis, veins and undersides of leaves are often pink.

The inflorescence is an axillary panicle, 100-200mm long. The flowers are minute, yellowish-green, 5-6mm in diameter. It has 5 sepals, 5 petals, 5 anthers.

The fruit is a fleshy drupe, 7-10mm in diameter, globose-ovoid, flattened, smooth, pale shiny brown.

References
- New Zealand Plant Conservation Network. Toxicodendron succedaneum
References for the genus
- Trees of Southern Africa, Meg Coates Palgrave. 2002 pag. 556-565. ISBN
General specifications
Biological type: tree
Frost resistance: 18ºF
Leaf color: bright green
Flower color: yellow
Poisonous: Yes
IUCN Red List of threatened species status: Least Concern

Specifications for the Mediterranean basin
Adult size (h x w): 22,9ft x 16,4ft
Sun exposure: full sun (Sun hours: >6h
Foliage: evergreen
Growth: fast
Flowering time at May
Ripe fruits in October

Specific information for our garden
Planting substrate: 30%Compost+30%Coco+40%Sand
Plant watering: 1x a week pH 6.5
Logical sequence of containers for: Trees; forestry plate, forestry pot 3L, container 6L, container 55L, container 110L, container 240L
Propagation is done by cuttings
Sowing instructions
SPRING Soak the seeds in warm water of 158°F for 1h. Sow the seeds at 2mm depth in the Well Drained Seed Sowing Mix between 68-77°F. During germination keep the substrate moist and in daylight. The seeds germinate in 12 weeks.

Germination references
- New Zealand Plant Conservation Network. Toxicodendron succedaneum
Experiences in the garden
14-12-20A Obtaining seeds from seed provider Villa Thuret. Stock
18-02-21 Sown 10 seeds in a seed plate F, they did not geminate.
Protocol: Spring Soak 68°F 24h 2mm Sowing mix+Sand 50-59°F Damp substrate+Light 12w
04-04-22 Sown 20 seeds in a seed plate F and germinated at 17-05-22 in Serre5.
Protocol: Spring Soak 158°F 1h Coal 2mm Sowing mix+Sand 64-72°F Damp substrate+Light 12w
12-03-24 Sown 20 seeds in a seed plate F, they did not geminate in Serre3.
Protocol: Spring Soak 158°F 1h 2mm Sowing mix+Sand 59-68°F Damp substrate+Light 12w
. . . 2022A Production of 3 plants in our nursery: Serre5 3x F3