Plants
tannia
Xanthosoma sagittifolium (L.) Schott
Family: Araceae · Genus: Xanthosoma
yautia, arrowleaf elephant ear
PANC perennial leafy vegetable widely used in Brazilian syntropic systems. Pasini lists it in the low stratum of Tabela 3 and in the '3 to 10 years' phase of Tabela 4. Tolerates partial shade well; regrows indefinitely after leaf harvest.
Götsch succession
- Götsch stage
- Secondary I
- Ecological role
- Early secondary
- Primary stratum
- Low
- Strata
- Low, Medium
- Biomass class
- No biomass production
Environment
- Light requirement
- Partial shade
- Water requirement
- High
- Drought tolerance
- Low
- Soil pH range
- 5.5–6.5
- Preferred soil texture
- Loamy, Clayey, Silty
- Hardiness zones
- 9–12
Morphology
- Mature height
- 0.5–1.5 m
- Growth rate
- Fast
Biomes & climate
- Atlantic Forest Naturalized
- Amazon Native
Köppen classes
- Tropical rainforest (Af) Suitable
- Tropical monsoon (Am) Suitable
- Tropical savanna with dry winter (Aw) Suitable
- Humid subtropical (Cfa) Suitable
Where it fits in a guild
Tannia takes the Low stratum in the Secondary I phase of succession — in a guild it shares the line with species from the other strata, each harvesting light at its own height, in its own time.
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❓ Frequently asked questions
How tall does tannia grow?
At maturity, tannia reaches 0.5–1.5 m tall.
What stage and stratum does tannia occupy in a syntropic system?
In a syntropic system, tannia belongs to the secondary i stage, occupying the low stratum.
Functions
Propagation
Division
Citations
- Pasini, F. & Guimarães, L. (2017) — Conceitos e princípios práticos da agrofloresta sucessional, Tabela 3 (Incaper) , p. 116 (primary_stratum)
- Pasini, F. & Guimarães, L. (2017) — Tabela 4 (arranjo agroflorestal por estrato e tempo) , p. 120 (gotsch_stage)
- Plants of the World Online (Kew) — Xanthosoma sagittifolium (L.) Schott (powo_id, scientific_author)
- GBIF Backbone Taxonomy — Xanthosoma sagittifolium (L.) Schott (gbif_taxon_key, family, genus)
External references
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