Shrubby homalolepis (Homalolepis suffruticosa)
Homalolepis suffruticosa: Cerrado Subshrub Overview
Thriving in the fire-prone savannas of the Brazilian Cerrado, Homalolepis suffruticosa grows as a specialized woody subshrub. It has evolved remarkable survival mechanisms to endure seasonal droughts and frequent wildfires.
This species is mainly found in open woody grasslands at high elevations. Its deep root system allows it to quickly regenerate after environmental disturbances.
Taxonomy
- β ΡΠ°ΡΡΡΠ²ΠΎ Plantae
- β division Tracheophytes
- β subdivision Spermatophytes (Seed plants)
- β Angiosperms
- β mesangiosperms
- β eudicots
- β Superrosids
- β rosids
- β malvids
- β order Sapindales
- β family Simaroubaceae (Quassia family)
- β genus Homalolepis (Homalolepis Tree)
- β species Homalolepis suffruticosa (Shrubby homalolepis)
Morphology
The morphology of Homalolepis suffruticosa reflects its adaptation to dry and sunny savanna conditions. Unlike its tree relatives, it remains relatively low to the ground and possesses a distinct woody rootstock.
- Habit: A low-growing subshrub with erect, woody stems branching from the base.
- Leaves: Pinnately compound leaves clustered near the branch tips, displaying a dull, greyish-green color.
- Rootstock: A thick underground xylopodium that stores water and nutrients, enabling rapid post-fire recovery.
Its small flowers are clustered in upright terminal inflorescences. They are followed by small drupes that are adapted to the arid atmosphere of the grasslands.
Flowering season
Flowers primarily during the dry-to-wet season transition, typically between July and October.
Applications
Traditional uses of Homalolepis suffruticosa are centered around local ethnobotanical practices. Indigenous communities have utilized preparations of the roots to treat various ailments.
- Folk Medicine: Decoctions of the bitter roots are traditionally used to treat fevers and digestive troubles.
- Erosion Control: Its extensive root network helps stabilize sandy soils in high-altitude Cerrado regions.
Interesting facts
The survival strategy of Homalolepis suffruticosa relies heavily on its underground xylopodium. While fires consume the aerial shoots, the underground portions remain unharmed and sprout within days.
- Bitter Chemistry: The plant produces high concentrations of quassinoids, deterring grazing savanna herbivores.
- Endemic Nature: It is strictly endemic to the central plateau of Brazil, making it a key component of Cerrado biodiversity.
Geography of distribution
- Distrito Federal
- GoiΓ‘s
- Minas Gerais
- Tocantins
Sources
- Plants of the World Online (POWO)
- World Flora Online (WFO)
- Global Biodiversity Information Facility (GBIF)
- Tropicos database (Missouri Botanical Garden)